2 0 0 8 P l a t i n u m E d i t i o n
MODEL 5304
INTRODUCTION
CONTENTS
INTRODUCTION...............................................................2
SAFETY PRECAUTIONS ..................................................3
TOOLS, SUPPLIES AND REQUIRED EQUIPMENT ........3
RADIO INSTALLATION AND BATTERY CARE ................4
TIRE GLUING AND BODY DETAILING............................5
THE TRX 3.3 RACING ENGINE.......................................6
TUNING ADJUSTMENTS...............................................11
INDEX.............................................................................18
INTRODUCTION
BEFORE YOU PROCEED
Thank you for choosing the Traxxas Revo 2008 Platinum Edition. We
believe you have purchased the most technologically advanced, track-
ready R/C monster truck available. Revo proudly demonstrates Traxxas’
passionate commitment to innovation, ultimate performance, and
unmatched engineering. Revo’s radically advanced suspension, chassis,
and transmission design takes performance to a higher level. Now with
over 50 proven championship features, Revo pushes the performance
envelope even further with track proven accessories. We’ve engineered
Revo to allow you to experience power, control, and responsiveness
that surpasses anything else you’ve driven.
Carefully read and follow all instructions in this and any accompanying
materials to prevent serious damage to your Revo. Failure to follow
these instructions will be considered abuse and/or neglect.
Before running your Revo, look over this entire manual and examine the
truck carefully. If for some reason you decide the Revo is not what you
wanted, then do not continue any further. Your hobby dealer absolutely
cannot accept a Revo for return or exchange after it has been run.
Warnings, Helpful Hints, & Cross-References
Throughout this manual, you’ll notice warnings and helpful hints
identified by the icons below. Be sure to read them!
To complete the Revo Platinum Edition for operation you will need;
two-channel transmitter with mini receiver, starter box, glow igniter,
charger for the receiver battery pack (3030X recommended), paint, and
Traxxas Top Fuel.
An important warning about personal safety or avoiding
damage to your model and related components.
We know you’re excited about getting your new Revo on the track,
but it’s very important that you take some time to read through
the Owners Manual. This manual contains all the necessary set-up,
break-in, tuning, and operating procedures that allow you to unlock
the incredible performance and adjustment potential that Traxxas
engineers designed into Revo. Even if you are an experienced R/C
enthusiast, it’s important to read and follow the procedures in this
manual. Revo contains new technologies in the engine, suspension,
and transmission operation that you may not be familiar with. Pay
particular attention to the fuel and break-in requirements for the
engine. The advanced design of the TRX 3.3 Racing Engine has a
special break-in procedure that has been developed and proven
to produce the best-performing engine possible. Using traditional
or old-fashioned procedures could reduce engine performance
and longevity.
Special advice from Traxxas to make things easier
and more fun.
Refers you to a page with a related topic.
TRAXXAS SUPPORT
Traxxas support is with you every step of the way. Read
below to find out how to contact us and what your
support options are. If you have any questions about your
Revo or its operation, call the Traxxas Technical Support
line toll-free at: 1-888-TRAXXAS (1-888-872-9927)*
Technical support is available Monday through Friday from 8:30 am
to 9:00 pm central time. Technical assistance is also available at www.
Traxxas.com. You may also e-mail customer support with your question
at [email protected]. Join hundreds of Traxxas R/C enthusiasts in
We want you to feel confident that you own the best performing truck
in the market and that it is backed by a team of professionals who aim
to provide the highest level of factory support possible. Revo is about
experiencing total performance and satisfaction, not just with your
truck, but also with the company that stands behind it. We truly want
you to enjoy your new Revo!
Traxxas offers a full-service, on-site repair facility to handle any of
your Traxxas service needs. Maintenance, replacement parts, and
accessories may be purchased directly from Traxxas by phone or online
handling costs, by purchasing replacement parts from your local dealer.
Do not hesitate to contact us with any of your product support needs.
We want you to be thoroughly satisfied with your new Revo!
Thank you again for going with Traxxas.
2 REVO PLATINUM EDITION
•
INTRODUCTION
SAFETY PRECAUTIONS
• Model engine fuel is flammable. Never allow smoking, sparks, heat
or flame in the presence of fuel or fuel vapors.
All of us at Traxxas want you to safely enjoy your new Revo. Operate
your Revo sensibly and with care, and it will be exciting, safe, and fun for
you and those around you. Failure to operate your Revo in a safe and
responsible manner may result in property damage and serious injury.
The precautions outlined in this manual should be strictly followed to
help ensure safe operation. You alone must see that the instructions are
followed and the precautions are adhered to.
• Prolonged exposure to the engine exhaust can be harmful. Avoid
breathing the engine exhaust. Always run your Revo outdoors, in a
well-ventilated area. Never run the engine indoors.
• Do not operate your Revo at night, or anytime your line of sight to the
model may be obstructed or impaired in any way.
Important Points to Remember
• Never operate your Revo in crowds of people or busy pedestrian
areas. Revo is very fast and could cause injury to those unaware of
its presence. Keep small children at a safe distance away from the
operating area.
• Revo is very fast! The Revo is intended for experienced users with a
high level of skill. The TRX 3.3 Racing Engine is extremely powerful and
may require skilled driving to maintain control.
• The engine, brakes, and exhaust system may become extremely hot
during use. Be careful not to touch the parts, especially when refueling
or stopping the engine.
• Because Revo is controlled by radio, it is subject to radio interference
from many sources beyond your control. Since radio interference can
cause momentary loss of control, always allow a safety margin in all
directions around your model to prevent collisions.
• Model engine fuel is dangerous and highly poisonous. Always follow
all directions and precautions printed on the fuel container. Model
engine fuel is poisonous to humans and animals. Drinking the fuel can
cause blindness and death. Handle with care and respect.
• The engine can be loud. If the noise makes you uncomfortable, wear
ear protection. Be considerate of your neighbors by not running your
model early in the morning or late in the evening.
• Model engine fuel, especially when in a fuel dispensing bottle, may
look like a cool drink to a child. Keep all fuel out of the reach of
children at all times. Do not place fuel containers on the ground
where children can reach them. Pay close attention to where you
place your fuel and fuel bottle while you are driving.
• Most importantly, use good common sense at all times.
Children under 16 years of age and inexperienced drivers
should not operate the Revo without the supervision
of a responsible and knowledgeable (experienced) adult.
TOOLS, SUPPLIES, AND REQUIRED EQUIPMENT
Revo comes with a set of specialty metric tools. You’ll need to purchase other items, available from your hobby dealer,
to operate and maintain your model.
Supplied Tools and Equipment
• Shock wrench
Required Tools and Equipment
Recommended Equipment
These items are not required for the operation
of your model, but are a good idea to include in
any R/C toolbox:
• Traxxas Top Fuel
10% quart - #5010 10% gallon - #5060
20% quart - #5020 20% gallon - #5070
33% quart - #5030 33% gallon - #5080
• 8mm slipper clutch wrench
• 7mm turnbuckle wrench
• 17mm wheel wrench
• Hobby knife
• Fuel dispensing bottle
• Flywheel starter box
• Glow igniter
• Side cutters and/or needle nose pliers
• Philips screwdriver
• Soldering iron
• Antenna nut tool
• Suspension multi-tool
• 4-way wrench
• After-run oil
• Small flat-blade screwdriver
for tuning (1/8 inch blade)
• Thin, hobby-quality cyanoacrylate
instant tire glue (CA glue)
• Glow plug and wheel nut wrench
• 1.5mm “L” wrench
• 2.0mm “T” wrench
• Safety glasses
• 2.5mm “L” wrench
• Paint for the body
• 2.5mm “T” wrench
• 2-channel radio system with mini receiver
• 5-cell NiMH RX Power Pack battery
• Suspension tuning shims and hollow balls
• Servo cable “Y” harness
• Front and rear black swaybars (stiffer)
• Spring pairs - Green, White, and Tan
• Shock oil - 40W and 60W
• Clutch bell - 16T
• Charger for RX Power Pack battery (such as
the Traxxas TRX Power Charger, part #3030X)
• Spur gears - 36T and 40T
Traxxas
1100 Klein Road
Plano, Texas 75074
Phone: 972-265-8000
Toll-free 1-888-TRAXXAS
Traxxas U.K.
P.O. Box 1128
Winterbourne, Bristol BS36-2SH
England
Phone: 44-117-956-1002
Entire contents ©2008 Traxxas. Traxxas, Maxx, Revo, TRX 3.3 Racing Engine, Top
Fuel, Ready-To-Race, Ready-To-Win, and ProGraphix are trademarks or registered
trademarks of Traxxas. Other brand names and marks are the property of their
respective holders and are used only for purposes of identification. No part of this
manual may be reproduced or distributed in print or electronic media without the
express written permission of Traxxas.
E-mail: [email protected]
REVO PLATINUM EDITION
3
•
RADIO INSTALLATION AND BATTERY CARE
This model requires the installation of a radio system. The receiver box
is designed to fit most standard size “mini” or “micro” receivers (actual
dimensions of box are 32mm wide x 45mm long x 26mm tall [1.26" x 1.77"
Typical Radio System Wiring
x 1.02"]). A rechargeable 5-cell nickel metal hydride (NiMH) battery pack is
include to power your radio system.
Charging
Jack
1. Remove the lid from the radio box.
On/Off
Switch
2. Plug each steering servo into each of the channel 1 ports on the
receiver (for receivers with only one channel 1 port, use the included
Y-harness to plug both steering servos into the channel 1 port on
the receiver).
RX Power Pack
5-cell NiMH
Battery
Antenna
3. Plug the throttle servo into the channel 2 port on the receiver.
4. Plug the red battery plug from the on/off switch into the battery
port on the receiver.
5. Leave the extra male
plug (black) from the
on/off switch loose
inside the receiver box.
This is the charge plug
and will need to be
used for charging the
receiver battery pack.
Steering
Servos
Battery
Receiver
(not included)
Channel 2
Channel 1
Channel 1*
“Y” harness
Charging Jack
6. Make sure the battery
Throttle
Servo
pack is plugged into the female plug (red) of the on/off switch.
7. For receivers using crystals, make sure that the transmitter and
receiver crystals are on matching frequencies.
8. Route the receiver antenna through the radio box lid and then slide
* Traxxas receiver #2216 shown has two Channel 1
outputs. Use the included “Y” harness for
receivers with one Channel 1 output.
the antenna wire through the antenna tube.
9. Use the supplied self-adhesive
foam (located in your owner’s
manual package) to cushion
the receiver. Remove the
A
B
BATTERY CARE
Some precautions should be taken to maintain the performance of the
rechargeable NiMH receiver pack in your model. Improper use of the
battery pack could result in personal injury or damage to your truck.
adhesive backing strip and
attach the foam to either the
bottom of the receiver or to the
shelf inside the radio box (A).
Only use approved chargers for NiMH battery packs (such as the Traxxas
TRX Power Charger, part #3030X). Do not exceed the maximum charge
rate of 1 amp.
•
10. Secure the lid to the radio box
with a body clip and then slide
an antenna cap over the end of
the antenna tube while leaving
the antenna wire exposed.
Do not short-circuit the battery pack. This may cause burns and severe
damage to the battery pack.
•
•
•
Do not burn or puncture the batteries. Toxic materials could be released. If
eye or skin contact occurs, flush with water.
11. Insert the antenna tube into
the mounting post. Slide the
crimp nut over the antenna
tube and screw it onto the
Store the battery pack in a dry location, away from heat sources
and direct sunlight.
Nickel Metal Hydride batteries must be recycled or disposed of properly.
•
•
antenna post. Use the supplied
tool to tighten the crimp nut on
the post just until the antenna
Do not completely discharge the RX Power Pack or you could damage
it. Do not use dischargers on the pack. Store the battery with at
least 25% charge. Stop running and recharge at the first indication
of reduced voltage.
tube is securely in place (B). Do not over tighten.
12. Refer to your radio/receiver owner’s manual for proper radio set up
and operation.
The optional Traxxas TRX Power Charger can
be purchased separately to charge the RX
Power Pack. The TRX Power Charger (Part
#3030X) is a peak-detecting unit that will charge
the RX Power Pack in about one hour. The
peak detection circuitry automatically shuts off
the charger when the maximum charge has been
achieved. The TRX Power Charger can operate on
either AC or DC power.
CHARGING THE RECEIVER BATTERY
Your Revo is equipped with the RX Power Pack, a rechargeable 5-cell
nickel metal hydride (NiMH) battery pack. The RX Power Pack must be
fully charged before running the truck. Revo has a charging jack located
inside the receiver box so you do not have to remove the battery pack
from the model. To charge the battery, remove the receiver box cover
and plug the charger output cord into the charging jack. The on/off
switch must be in the off position to charge the receiver pack. Caution!
Never charge batteries in an enclosed car interior or while driving. Never
leave charging batteries unattended. Monitor them closely.
Sold
Separately
The optional DC car adapter (Part #3032) features a tangle-free,
extra long wire and integrated fuse. The long charging cord
allows the model to remain outside the car while charging.
Sold
Separately
4 REVO PLATINUM EDITION
•
TIRE GLUING AND BODY DETAILING
and in light coats. Be patient! Let the paint dry fully in between
TIRE GLUING
coats. This will prevent accidentally smearing wet paint. Take extra
care when masks are being removed. After the body is completely
painted, remove the peel coat from the outside of the body.
The tires on your Revo are pre-glued and ready for the track. Revo
rims are equipped with a special bead design that helps retain the
tires and reduces the stress places on the glue joint. Following are
instructions for how to glue your wheels and tires in future. You can
glue the tires without removing the wheels from the truck. For clarity,
these instructions show the process with the wheels removed. Always
wear safety glasses to prevent glue from splattering in your eyes.
DECALS
You are now ready to apply the decals. The decals have been die-cut
for your convenience. Test the position of the decals before applying
them to the body. Once the decals have been applied, they cannot
be removed without damaging them. You can spray the body with
window cleaner before applying the decals. This will allow you to
re-position them. Once positioned, squeegee the cleaner from under
the decal. The decal will adhere when it dries. If you have air bubbles
in the decals, puncture the center of each bubble with a sharp pin
and push the air out. If you have creases along the outer edges of a
decal (especially when applied to curved surfaces), use a hobby knife
to cut along the top of the crease and overlap the edges.
1. Remove a wheel from Revo using the
included 17mm wheel nut wrench.
2. Use your thumb to push the side of the
tire away from the rim. Place one or two
drops of CA glue into the opening and
release the tire. Capillary action will draw
the glue around the bead of the tire.
3. Repeat step two at four or five points
around the rim, until the tire is completely secured to the rim. Turn the
rim over and repeat the process for the inside of the rim/tire. Repeat
for the other 3 wheels.
4. Reinstall the wheels.
PAINTING THE BODY
Note: Please read this entire section and plan your paint job
before beginning.
Buying Paint
The body supplied with your model is molded from lightweight
and durable clear polycarbonate. It should be painted on the
underside so that the color will not be scratched off while running.
The best way to paint the body is by using thinned paints sprayed
through an airbrush or spray gun. If you do not have these tools, the
next best way is using spray can paints. Whatever paint you use, be
sure that it is made for painting Lexan® or polycarbonate. Other types
of paints and solvents can attack the body material and cause it to
appear foggy.
Preparing the Body
The body must be washed thoroughly with dish soap and water
to remove any grease or oil (i.e. fingerprints) which may keep the
paint from adhering to it. Dry the body completely with a soft, lint-
free cloth.
Use the supplied masks to mask the windows. Mask off any stripes
or custom effects with either masking tape or special tape made for
striping. This special tape is available from automotive paint supply
stores and will provide sharper edges than masking tape. For easy,
custom-colored striping, automotive pin-striping tape can be applied
to the inside of the body and painted over. Be sure that all of your
tape and masks are fully pressed down (burnished) so that the paint
will not run or bleed underneath.
Usually, the darker colors are painted first, followed by the lighter
colors. If your paint scheme would be easier to mask by covering
the dark areas and spraying them last, be sure the lighter colors are
opaque enough to prevent the darker color from showing through.
Lighter colors can be backed with silver to help make them opaque.
Spraying the Body
Read the directions on your bottle or can of paint and shake, mix, or
thin the paint, as required. It is very important to avoid breathing the
paint vapors, as they are extremely harmful. Spray the paint outdoors
in well-ventilated areas only. Apply the paint to the body sparingly
REVO PLATINUM EDITION
5
•
THE TRX 3.3 RACING ENGINE
A few minutes spent before and after each time you run your model will
allow you to enjoy it for a long time to come. Read on for more exciting
details about your new engine.
INTRODUCTION
The TRX® 3.3 Racing Engine is the next ge
of TRX nitro power. The large displaceme
and advanced porting generate class-lea
horsepower while still maintaining the
TRX Racing Engine characteristics of broa
linear power delivery and ease of tuning.
Focused engineering and rigorous testin
have yielded unprecedented power and
uncompromising performance.
THE FUEL
Use the Right Fuel
It’s imperative that you use the correct fuel in your
TRX 3.3 Racing Engine for maximum performance
and engine life. Traxxas Top Fuel™ should be used to
ensure correct engine lubrication, performance, and
ease of tuning. Traxxas Top Fuel has been proven in
thousands of engines, so you can count on it every
day for great performance.
The TRX 3.3 Racing Engine takes a
total-system approach. Each part of
the engine, from the air filter to the
exhaust tip, is carefully engineered to
• Top Fuel is the only fuel which is 100% certified for
use in Traxxas engines.
work in harmony with other engine components. Each part complements
the next, to extract maximum power. The TRX 3.3 Racing Engine is
designed to be tolerant of variations in tuning, and to run successfully
through a wide range of variable atmospheric conditions such as changes
in temperature, humidity, and altitude.
• Traxxas Top Fuel is made with just the right balance of the highest
grade natural and synthetic lubricants to allow excellent throttle
response and the best top-end performance, without sacrificing long-
term durability.
In order to get the longest engine life and keep the TRX 3.3 Racing
Engine in top running condition, it is very important to perform regular
routine maintenance. The number one cause of premature engine wear
and failure is lack of care and maintenance!
• All of the components in the fuel are carefully selected from the
best materials available and then custom blended to match the
metallurgy and temperature characteristics of Traxxas engines.
You may use 10%, 20% or 33% nitro-content fuel. Try to use the same
percentage all the time and avoid switching back and forth between
fuels. We recommend that if you break in your engine on 20% fuel that
you continue to use that percentage. If you do move to a higher or lower
percentage, make sure you readjust your fuel mixture to compensate.
STARTER BOX AND GLOW IGNITER
The TRX 3.3 Racing engine in your Revo is equipped with a backplate the
pull start or EZ-Start system. A starter box is required for running. Starter
boxes designed to accommodate the Revo are available from your local
hobby dealer. You will also need a glow plug igniter (glow driver) to light
the glow plug. Use a high-high quality rechargeable glow igniter. Make
sure it is fully charged per the manufacturer’s instructions.
What about Other Fuels?
Can other brands of fuel be used besides Top Fuel? There are other fuels
that can provide satisfactory performance; however there could be long-
term costs in the form of decreased engine performance, loss of tuning
ease, and shorter engine life. Only use fuels that contain both castor and
synthetic oil.
BREAK-IN
The TRX 3.3 Racing Engine is manufactured to exacting tolerances and
requires a specially-designed break-in procedure to accomplish the final
precision fitting of the internal engine components. It is very important
that you follow the new break-in procedure as closely as possible to
achieve the best performance and longest life from your TRX 3.3 Racing
Engine. Engine break-in will take between one and two hours. Old style
break-in procedures, such as idling the engine on the bench for several
tanks of fuel or simply running the engine with a very rich fuel mixture
for the first 4 tanks of fuel, will not achieve the best results. Follow the
easy steps in this manual.
Everyone has an opinion or a claim to make about fuel. The engineering
team at Traxxas has spent years developing TRX Racing Engines.
No one knows more about the specific fuel requirements of Traxxas
engines than Traxxas engineers. We strongly urge you not to take
chances with your engine investment and use the Traxxas fuel made for
the TRX 3.3 Racing Engine.
Choosing a Nitro Percentage
A commonly asked question is “what is the difference between 10%,
20%, and 33% fuels?” Increasing the nitro in the fuel is almost like adding
extra oxygen to the combustion process. It burns more efficiently,
improves combustion, and delivers more power. When increased nitro
is used, more of the other fuel components are then required inside the
combustion chamber to maintain the perfect air/fuel ratio. Therefore,
overall fuel mixtures need to be richened slightly (on the high speed
needle, about 3/4 of a turn counterclockwise when changing from 20%
to 33%, about 1/2 of a turn counterclockwise when changing from 10%
to 20%). This allows greater fuel flow through the engine and promotes
cooler running, even at the maximum lean settings.
AIR FILTER MAINTENANCE
A clean air filter is critical for long engine life. Due to the high-
performance nature of the TRX 3.3 Racing Engine, a tremendous amount
of vacuum is created to move a large volume of high-velocity air through
the carburetor. Dirt is the worst enemy to your engine. Clean the air filter
after each hour of running to prevent sucking dirt into the engine.
AFTER-RUN MAINTENANCE
Perform after-run maintenance on the engine to prevent corrosion
from building up on the internal engine components. The fuel naturally
attracts moisture and corrosion can build up very quickly inside the
engine if it is not prevented.
Traxxas strongly discourages changing or modifying any part
of the TRX 3.3 Racing Engine. Old tech tips and tricks that may
have boosted the power of other engines could seriously diminish the
performance of the TRX 3.3 Racing Engine.
There’s more advanced thinking, development and testing in the
stock parts of your TRX 3.3 Racing Engine than in many aftermarket
manufacturer’s performance parts. The TRX 3.3 Racing Engine is already
the most powerful engine in its class and may not benefit from average,
low-tech, aftermarket bolt on performance items.
6 REVO PLATINUM EDITION
•
THE TRX 3.3 RACING ENGINE
If 33% improves power, then it seems that the highest nitro content
available (beyond 33%) should always be used in the engine. In reality,
there are practical limitations. Engines are designed to run best within
a range of nitro percentages. How the engine is ported, the size of the
combustion chamber and other factors determine how much nitro can
be efficiently used in the engine. The TRX 3.3 Racing Engine responds
exceptionally well to a maximum of 33% nitro, returning cooler temps,
more power, and a smoother throttle response. For those who want to
run higher nitro, 33% Top Fuel is the optimum nitro percentage for the
TRX 3.3 Racing Engine. Increasing the nitro beyond 33% can introduce
the need for engine modifications (ports, head shimming, etc.) to avoid
starting and tuning difficulties. There are limits to how much nitro an
engine can effectively use to make more power. Lower nitro percentages
have their own advantages. Nitro is an expensive component in the
fuel so 10% nitro blend is more economical for the sport user. 10% also
provides greater latitude with the needle settings for easier tuning.
People have differing opinions on what is the proper procedure
to break-in a model engine. Only use the Traxxas break-in
procedure. Other break-in procedures could result in a weak,
damaged, or otherwise poor performing engine. The procedure
outlined here was extensively tested and proven to yield better
performing engines than other “common” break-in methods.
Even if you have years of experience using model engines, please
do not ignore this caution!
Engine Break-in Procedure
The focus during break-in is to vary and limit the engine speed. This will
be accomplished by accelerating and stopping at different rates for the first
5 tanks of fuel. As the engine begins to break-in, the duration and intensity
of the acceleration will gradually increase. Sustained high-speed running
is not permitted until the 6th tank of fuel. Perform the initial break-in
on a large, flat, paved surface. Revo is very fast and by tanks 4 and 5 you
will need plenty of room for the truck to run in. Apply all throttle and
braking actions gently. Abrupt acceleration or braking could cause the
engine to stall unnecessarily.
When using Traxxas Top Fuel, using higher nitro percentages does not
cause the engine to wear out faster. 33% Top Fuel contains the same
quality lubrication package as 10 and 20% Top Fuel. Some non-Traxxas
high-percentage nitro racing fuels do sacrifice some lubrication in
attempts to increase performance. We urge you to not take chances with
your engine investment and use Top Fuel for consistent performance and
long engine life.
• Special break-in fuels are not recommended. Use the same fuel you plan
to use everyday.
• If possible, avoid breaking-in the engine on extremely hot or cold days
(see page 9).
• Pay careful attention to the fuel level. Do not allow the fuel tank to run
completely empty. An extremely low fuel level causes the mixture to
run too lean. This could result in a burned glow plug or extremely high
engine temperatures.
Handling the Fuel
• Follow all directions and warnings on the fuel can.
• Keep the fuel tightly capped at all times. Some components in the fuel
can evaporate very quickly and upset the balance of the fuel.
• Do not attempt to break in the TRX 3.3 Racing Engine by idling it on a
• Do not store unused fuel in the fuel dispenser. Immediately return fresh
unused fuel back into the fuel can.
stand. This will produce poor results.
• Keep extra Traxxas glow plugs handy. The break-in process can cause
deposits to form on the plug leading to plug failure.
• Do not mix old and new fuel. Never mix different fuel brands together.
• Store the fuel in a cool dry location, away from any source of heat,
ignition, flame or combustion.
• Change or clean your air filter after break-in.
• Follow the instructions exactly for each of the first 5 tanks of fuel.
• Read and follow the safety precautions on page 3 in this manual.
• Never run your Revo indoors. Since the TRX 3.3 Racing Engine
exhaust fumes are harmful, always run your model outdoors, in a
well-ventilated area.
DANGER! Model engine fuel is poisonous to humans and animals.
Drinking the fuel can cause blindness and death. Handle with care
and respect. Keep it out of reach of small children at all times! While
driving, do not leave your fuel dispensing bottle on the ground
where a child could have access to it. Follow fuel label warnings.
• Read and follow the safety precautions on page 3 in this manual.
Starting Your TRX 3.3 Racing Engine for the First Time
Before you start your TRX 3.3 Racing Engine for the first time, make sure
you have read all instructions and precautions in this manual. Pay close
attention to the tank-by-tank break-in instructions in the next section,
and make sure you have read and understood them before you run
your engine.
BREAKING IN YOUR TRX 3.3 RACING ENGINE
The TRX 3.3 Racing Engine uses a ringless, aluminum-brass-chrome (ABC)
piston/sleeve construction. This type of engine design relies on a very precise
running fit between the piston and sleeve for cylinder sealing. Engine break-
in is necessary to allow the piston and sleeve to develop an extremely
precise fit and optimum cylinder sealing. Therefore, proper engine break-
in is critical to achieving the fastest, most reliable engine performance.
Your TRX 3.3 Racing Engine doesn’t usually require priming. If you
do need to prime your engine, watch the fuel line carefully to avoid
flooding your engine.
1
2
Allow yourself about 1 to 1 / hours to complete the break-in procedure. The
engine break-in period will take 5 tanks of fuel in a Revo. The break-in time
is not the time to impress your friends with your new Revo. You must wait
until the engine is fully broken in before attempting sustained high speed
running. Patience and careful attention during break-in will reward you with
the best-performing TRX 3.3 Racing Engine possible.
Your engine must be at room temperature (70°F or 21° C) or above the
first time you start it. If it’s cooler than room temperature outside, remove
all fuel and keep your Revo indoors until you’re ready to start it and then
take it outside. If it’s colder than 45 degrees, special considerations should
be made. See cold weather break-in on page 9. We do not recommend
running the model in temperatures below 35 degrees.
During break-in, your engine may appear to malfunction with symptoms
like stalling, inconsistent performance, and fouled glow plugs. These are
simply the normal “break-in pains” engines sometimes go through. They
will disappear once your engine is fully broken in. Many owners report
not experiencing any of these symptoms with TRX Racing Engines. We
recommend to go ahead and replace the glow plug with a new one after
the engine break in procedure.
Note: The initial startup fuel mixture settings have been pre-set at the
factory. Do not change the settings.
1. Turn on the radio system.
2. Make sure the throttle trigger on the transmitter is in the idle
(neutral) position.
REVO PLATINUM EDITION
7
•
THE TRX 3.3 RACING ENGINE
3. Connect the glow igniter to the engine.
Tank 2
4. Place the model on a starter box and engage
the starter. Watch for fuel moving through
the fuel line up to the carburetor. Watch
closely! The fuel moves very fast. If the fuel
doesn’t move through the line within 5
1. From tank 2 forward, Revo should be driven with the body on.
2. Driving procedure: Gently pull the throttle trigger to 1/2 throttle
over a 2-second count. Then gently apply the brake to stop. Count
the two seconds out while accelerating: one thousand one, one
thousand two, and then stop. Repeat this starting and stopping
procedure until the second tank of fuel is nearly empty.
3. When the fuel tank is nearly empty, shut off the engine and let it cool
for 15 minutes.
seconds, prime the engine by briefly (one
or two seconds) covering the exhaust outlet
with your finger until the fuel is just visible in
the carburetor fuel line. Watch carefully! If
the engine is primed too long, it will flood with fuel and stop turning.
5. Once fuel reaches the carburetor, the engine should quickly start and idle.
6. Disconnect the glow igniter from the model.
7. Proceed with the engine break-in.
Tank 3
1. Driving procedure: Gently pull the throttle trigger to 1/2 throttle
over a 3-second count. Then gently apply the brake to stop. Count
the three seconds out while accelerating: one thousand one, one
thousand two, one thousand three, and then stop. Repeat this
starting and stopping procedure until the third tank of fuel is nearly
empty.
2. As the engine loosens, the idle speed may increase and cause
the model to try to creep forward when stopped. Reduce the
idle speed by turning the idle adjustment on the carburetor
counterclockwise.
8. Do not rev your engine with no load (wheels off the ground).
If your engine doesn’t start, refer to the troubleshooting tips on www.
traxxas.com/support. If you still have problems, contact Traxxas Customer
Support at 1-888-TRAXXAS or [email protected].
Factory Needle Settings
If your factory preset carburetor adjustments
have been tampered with, use the following settings:
3. When the fuel tank is nearly empty, shut off the engine and refuel.
From here on, you do not need to let the engine cool between tanks.
• Set the high-speed needle to 4 turns out
from closed.
Fig. A
Tank 4
1. Driving procedure: Gently pull the throttle trigger to full throttle
over a 3-second count. Then gently apply the brake to stop. Count
the three seconds out while accelerating: one thousand one, one
thousand two, one thousand three, and then stop. Repeat this
starting and stopping procedure until the fourth tank of fuel is
nearly empty.
2. Apply the throttle gradually! Your finger should not reach full throttle
until the end of the three-second count. Revo may try to shift into
second gear. If it does, reduce the throttle input. Do not let Revo shift
out of first gear.
• Set the low-speed needle so the screw
head (red in Fig. A) is flush (even) with the
end of the slide (yellow in Fig. A).
Low Speed
Needle Adjustment
Always use the factory settings for initial
starting. Only use these settings when the
factory settings have been lost.
Break-in Checklist
Tank 1
3. Keep your driving smooth and consistent.
4. When the fuel tank is nearly empty, shut off the engine and refuel.
1. Drive the model with the body off.
2. Driving procedure: Gently pull the throttle trigger to 1/4 throttle
over a 2-second count. Then gently apply the brake to stop. Count
the two seconds out while accelerating: one thousand one, one
thousand two, and then stop. Operate the throttle trigger as smoothly
as you can. Repeat this starting and stopping procedure until the
first tank of fuel is nearly empty.
3. Look for thick blue smoke exiting the exhaust outlet. If there is
no smoke, richen the high-speed needle 1/4 turn, by turning the
needle counterclockwise.
Tank 5
1. Driving procedure: Gently pull the throttle trigger to full throttle
over a 3-second count, hold for 2 more seconds, and then
gently apply the brake to stop. Count the five seconds out while
accelerating. Repeat this starting and stopping procedure until the
fifth tank of fuel is nearly empty.
2. The model should now be shifting into second gear. If it is not, try
turning the high-speed needle clockwise 1/8 turn to lean the fuel
mixture slightly and test for shifting.
4. When the fuel tank is nearly empty, shut off the engine by pinching
the fuel line connected to the carburetor (use the installed clamp).
5. Let the engine cool for 15 minutes.
3. When the fuel tank is nearly empty, shut off the engine and refuel.
Tank 6
Note: If at any point the engine cuts out or stalls during gentle
acceleration, richen the high-speed needle 1/4 turn by turning the
needle counterclockwise.
STOP! Clean your air filter before you proceed. During the sixth tank of
fuel, the engine can be tuned for general performance use.
TANK THROTTLE
TIME
COOL
BODY
NOTES
1
2
3
4
5
1/4
1/2
1/2
Full
Full
2 seconds
2 seconds
3 seconds
3 seconds
5 seconds
15 minutes
Off
On
On
On
On
Apply throttle gradually.
15 minutes
Apply throttle gradually.
-
-
-
Reduce idle speed if necessary.
Do not allow shifting to high gear.
Accelerate over 3 second count, hold for 2 seconds.
8 REVO PLATINUM EDITION
•
THE TRX 3.3 RACING ENGINE
Winter Break-in Tips
During the break-in process, the piston
and sleeve wear into each other to form a
TUNING YOUR TRX 3.3 RACING ENGINE
The engine’s performance
depends on the fuel
precise fit. The engine needs to heat up to a
temperature around 200 to 215 degrees to
allow the piston and sleeve to achieve this
fit properly. A precise fit between these two
components is critical for proper compression,
and optimum performance. If the engine
mixture. Turn the mixture
needles clockwise to
lean the fuel mixture
and counterclockwise
to richen it. Leaning the
fuel mixture will increase
runs too cold during break-in, the piston and
sleeve will not expand to their appropriate sizes for break-in, and this can
lead to premature wear of these components. This wear may not become
apparent until after winter has past, and the engine is operated under
warmer running conditions.
engine power up to the
engine’s mechanical limits.
Never run the engine
too lean (not enough
fuel flow). Never lean the engine
until it begins to cut-out or stall.
Leaning the engine beyond the safe
allowable limits will result in poor
performance and almost certain
engine damage. Indications of an
overly lean mixture include:
• Warm the engine to approximately room temperature by removing
all fuel and storing the vehicle inside at room temperature until just
before starting the engine. An extremely cold engine can become
difficult to start.
• After the engine is running, it is important to keep the temperature of
the engine up around 200 to 215 degrees during break-in. In weather
below 45 degrees, the TRX 3.3 Racing Engine will tend to run at lower
temperatures between 160 to 180 degrees (when tuned at proper
break-in mixture settings). This is too cool for break-in. Do not lean the
fuel mixture to increase engine temperature! This will also decrease
lubrication and cause your piston/sleeve to wear prematurely.
• Cutting out or sudden loss of power during acceleration.
• Overheating (temperature beyond 270° F at the glow plug).
• Little or no blue smoke coming from the exhaust.
If any of these conditions are present, stop immediately and richen the
high speed mixture 1/4 turn. The engine will probably be slightly rich at
that setting and you can then retune for performance. Always tune for
performance by starting rich and moving leaner toward the ideal setting.
Never try to tune from the lean side. There should always be a light
stream of blue smoke coming from the exhaust.
• Wrap the cooling head with a paper towel, clean rag or sock to help
keep the engine running around the recommended 200 to 215 break-
in temp. If too much heat is contained, the engine can actually run too
hot. Make sure that you monitor the engine’s temp closely for the first
couple of tanks until you get the right amount of cover for the cooling
head. This will, of course, depend on your current weather conditions.
Adjusting the cover up and down, exposing more or fewer cooling fins,
is a convenient way to regulate engine temps.
Before you begin tuning, the engine should be warmed up to its normal
operating temperature and running slightly rich. All final tuning adjustments
must be made to the engine at its normal operating temperature. You can
tell the engine is running rich by noting any of the following:
• Sluggish acceleration with blue smoke coming from the exhaust.
• Revo may not shift into second gear.
• There is unburned fuel spraying from the exhaust tip.
• Leaning the high-speed fuel mixture increases performance.
• For owners that do not have access to a temperature probe, a drop of
water on the cooling head (around the glow plug area) should slowly
sizzle for approximately 6 to 8 seconds around 200 to 210 degrees. If the
water sizzles for only a few seconds, then it is likely that it is over 220
degrees, and needs to cool down. If the water takes a long time or does
not evaporate at all, then the engine is too cool.
High-Speed Fuel Mixture Adjustment
With the engine warm and running at a rich setting, gradually lean
the high-speed fuel mixture in 1/16 turn increments. Make several
high-speed passes after each adjustment to clear out the engine and
note any change in performance. The TRX 3.3 is extremely powerful.
Remember to apply the throttle gradually to prevent wheelies or loss of
control. Continue this procedure until there is no longer any performance
improvement. If any one of the following conditions occurs, the fuel
mixture is already past the maximum safe lean setting:
• We do not recommend that you operate your engine below 35 degrees
Fahrenheit. If you insist on running your vehicle below 35 degrees,
be aware that nitro engines may be very difficult to start and tune at
extremely cold temperatures. Also, at temperatures below freezing, nitro
fuel can actually begin to gel, and this can be harmful to the engine.
Follow the remaining break-in procedures as outlined in this Owners
Manual. This, along with the steps listed above, will ensure a good break-
in for your new nitro engine, and provide many hours of enjoyment.
1. There is no longer any performance improvement.
2. The engine begins to cut out at high speed (Danger!).
3. There is a sudden loss of power during acceleration (Danger!).
4. The engine begins to overheat. Symptoms of overheating include:
• Steam or smoke coming from the engine (not exhaust).
• Hesitation or stalling during acceleration.
High Altitude Operation: If you live in a high altitude region (5000
or more feet above sea level), the lower air density may require
you to lean your high-speed fuel mixture slightly from the factory
break in settings. Try this if you are experiencing difficult starting
or extremely sluggish engine performance at high altitude.
• Popping or clattering sound when decelerating (detonation).
• Fluctuating idle speed.
• Temperature measurement above 270° F at the glow plug (A
temperature reading above 270° alone does not necessarily indicate
overheating. Look for other symptoms of overheating combined with
temperature for a more accurate warning).
REVO PLATINUM EDITION
9
•
THE TRX 3.3 RACING ENGINE
Richen the fuel mixture to the optimum setting by richening the high-
speed needle at least 1/8 turn counterclockwise and retest. This setting
will extend engine component life.
Tuning the Engine by Temperature
The following procedures require an optional
infrared temperature probe or on-board
temperature gauge (Traxxas on-board digital
temperature gauge, part #4091). Engine
temperature can be used as an effective tuning
Low-Speed Fuel Mixture Adjustment
The low-speed mixture is always set after the high-speed needle is correctly
adjusted. The low-speed mixture is set using the pinch test.
aid when you understand the relationship between engine temperature
and ambient temperature. The engine operating temperature, when
tuned for maximum performance, will vary according to atmospheric
conditions, engine load, gauge accuracy, and many other factors. The
atmospheric condition that has the most influence on engine temperature
is air temperature. Expect the engine temperature to vary almost in direct
proportion to air temperature. Assuming you tuned the engine for the same
maximum performance each day, the engine will run about twenty degrees
hotter when it’s ninety degrees outside than it would in seventy-degree
weather. For this reason, we cannot give you a definitive temperature range
that indicates the best possible engine tuning.
1. Once the engine is warm, do several high-speed runs to confirm
that the high-speed needle is set correctly.
2. Bring the vehicle in and pinch closed the fuel line going into the carburetor
(use the engine shut-off clamp). The engine should run for 2-3 seconds,
speed up, and then shut off.
3. If the engine runs longer than 3 seconds, then lean the low-speed needle
1/16 turn, make several more high-speed runs, and retest.
4. If the engine shuts off immediately without speeding up, then richen the
low-speed needle 1/8 turn, make several more high-speed runs, and retest.
When the low-speed needle is set correctly, the engine’s throttle response
should be very quick, even to the point of making it difficult to keep Revo
from doing a wheelie when you accelerate!
There is NO optimal temperature that can be used as a target to deliver
the best engine tuning. Do not rely on a temp gauge alone to tune your
engine. Tune the engine by paying very close attention to how it responds
to changes in fuel mixture (more smoke/less smoke, fast/sluggish, reliable/
stalling, smooth sound/ muffled sound, etc). Once the engine is tuned, then
observe the temperature.
Idle Speed Adjustment
Once the high and low-speed mixtures have been set, reduce the idle speed
to the minimum reliable idle speed. Remember, this adjustment should be
made while the engine is running at normal operating temperature.
The temperature gauge can aid you in tuning by giving you a relative
indication of how your adjustments are affecting the engine and to help
prevent you from reaching excessive engine temperatures. For example,
as you lean the fuel mixture, the engine performance will increase along
with the temperature. If you continue to lean the fuel mixture and the
temperature increases but the engine performance does not change, then
you have exceeded the maximum safe lean setting. Make note of the engine
temperature. Generally, try to keep your engine from exceeding 270°F when
measured at the glow plug. If necessary, increase airflow to the engine by
cutting out the rear of the body, windshield, and front valance. In some
situations, the engine may perform very well with no stalling, lagging, or
hesitation at temperatures above 270°F, particularly in very hot climates.
If richening the fuel mixture to bring the temperature down to 270°F results
in poor, sluggish performance (engine never cleans out) then return the
engine back to a satisfactory state of tune based on how it sounds and
performs (always with a visible stream of blue smoke coming from the
exhaust). If engine temperature is exceeding 270°F with proper cooling
and no signs of abnormal running, then avoid running the engine at its
maximum lean setting. Watch closely for any signs of overheating.
Richen the fuel mixture slightly to provide a safety margin of additional
cooling lubrication. Symptoms of overheating include:
1. Turn the throttle trim on the transmitter so the brakes are
applied (note its original position). This ensures that the throttle
slide is resting against the idle adjustment screw.
2. Turn the screw counterclockwise to reduce the idle speed, or clockwise
to increase it. The idle speed should be set as low as possible while still
maintaining reliable running characteristics.
3. Reset the throttle trim on the transmitter to its original position.
Fine-Tuning the Carburetor
After fine-tuning your TRX 3.3 Racing Engine at the end of the break-in
procedure, no major adjustments to the fuel mixture are usually necessary.
Make note of the temperature, humidity, and barometric pressure at the time
you finished fine tuning your carburetor. Current weather conditions can be
found online from national websites, local TV news websites, and television.
This information will be considered your baseline setting.
You may need to adjust your carburetor needles to compensate for changes
in temperature and barometric pressure (air density) from day to day.
Generally, you’ll need to richen the fuel mixture when the weather is colder
than your baseline temperature and the air density is higher. Lean the fuel
mixture when weather is warmer than your baseline temperature and the
air density is lower. The chart below provides general guidelines on how
weather conditions affect air density when they move higher or lower than
your baseline setting.
• Steam or smoke coming from the engine (not exhaust).
• Hesitation or stalling during acceleration.
• Popping or clattering sound when decelerating (detonation).
• Fluctuating idle speed.
Fuel Mixture Adjustment Chart
adjust (correct) the
fuel mixture to be...
slightly richer
slightly leaner
leaner
richer
richer
leaner
richer
leaner
leaner
If the...
is...
then the air density is...
slightly more dense
slightly less dense
less dense
more dense
more dense
less dense
more dense
less dense
-
humidity
lower
higher
lower
higher
lower
higher
lower
higher
lower
higher
pressure (barometer)
temperature
altitude
nitro %
-
richer
10 REVO PLATINUM EDITION
•
TUNING ADJUSTMENTS
SUSPENSION AND ALIGNMENT SETTINGS
Bump Steer Elimination Chart
Roll Center
The illustrations and the following table detail the position of the outer
toe link end for various caster and roll center settings to eliminate bump
steer. The shims and the hollow balls used to adjust bump steer are
provided with your vehicle.
There are two holes on the bulkheads
Upper Control Arm
to mount each upper suspension arm.
The roll center of the vehicle can be
raised by mounting the upper control
arm in the lower of the two holes. This
will effectively increase the roll stiffness
of the vehicle (similar to installing
swaybars). Adding roll resistance to
one end of the vehicle will tend to
add traction to the opposite end.
For example, increasing roll resistance in the rear by installing the upper
arms in the lower holes will provide more traction for the front wheels and
potentially more steering. Installing the upper arms in the lower holes on
the front and rear will increase overall roll resistance without changing the
handling balance. From the factory, the arms are installed in the upper
position in the front and the lower position in the rear for track tuning. Note:
When the suspension arms are moved to the either mounting holes, the
front outer toe link ends and the rear toe control links should be repositioned
to eliminate bump steer. Refer to the Bump Steer Elimination chart on this
page, and look up your suspension combination (caster angle and roll center
position) to find the correct position for the front outer toe links and the rear
toe control links. Adjustment is achieved using the shims and hollow balls
provided with the vehicle.
Upper Mounting Holes
Control Arm
Mounting Hole on
Front Bulkhead
FRONT
Caster
Upper Control Arm
Lower Mounting Holes
Outer Toe Link End Setup
5° 7.5° 10° 12.5° 15°
Standard
Upper
Lower
Upper
Lower
Upper
Lower
Upper
Lower
Upper
Hollow Ball
Thin Shim
Thick Shim
Thin Shim
Standard
Hollow Ball
Thick Shim
Tall Center
Hollow Ball
Thick Shim
Standard
Hollow Ball
Caster adjustment shims (4 front, 0 rear)
Caster Adjustment
The caster angle of the front
Thin Shim
suspension may be used to adjust
the understeer (push)/oversteer
handling characteristics of the model.
Generally, increasing the caster
angle will move the truck towards an
oversteer condition (more traction
on the front tires, less on the rear
tires). Decreasing the caster angle will
create a tendency towards understeer
(pushing in the turns). From the
factory, the front suspension is set
to a caster angle of 15-degrees. The
Thick Shim
Thin Shim
Standard
Hollow Ball
Control Arm
Mounting Hole on
Rear Bulkhead
Outer Toe Link
End Setup
REAR
Tall Lower
Hollow Ball
Upper
Lower
When the rear upper control
15°
arms are mounted in the upper
of its two mounting holes in
the bulkhead (roll center), the
tall lower hollow ball should
be used.
Ground plane
Tall Center
Hollow Ball
(stock)
rear caster angle is not adjustable.
The caster angle of the front
Number & Position of Caster Adjustment
Shims (Front Upper Control Arm)
In Front of
Behind Hinge
Pin Boss
suspension can be adjusted from
5° to 15°. Adjust the caster by
positioning the caster adjustment
shims on the upper control arms
of the front suspension as shown
in the table to the right.
Caster Hinge Pin Boss
5.0°
7.5°
None
One
Four
Three
Two
Rockers (Progressive Rate/ Suspension Travel)
One of the most exciting aspects of Revo’s suspension is the inboard shock
(damper) arrangement that uses pivoting rockers to translate vertical wheel
travel into linear shock motion. The rockers can be changed to increase or
decrease the maximum wheel travel and also to change the progressive rate
of the suspension.
10.0°
12.5°
15.0°
Two
Three
Four
One
None
Caster Angle, and Bump Steer
Bump steer is unwanted change in the steering angle of the wheels as the
suspension travels up and down. It can result in unstable and unpredictable
handling. Bump steer is affected by the position of the outer toe link end
on the axle carrier. From the factory, the toe links are positioned so that
bump steer is virtually eliminated (about 3/100 of a degree through the
entire range of travel). When the caster angle is changed, the outer toe link
end should be repositioned on the axle carrier to maintain zero bump steer
geometry. Adjustment is achieved using the shims and hollow balls provided
with the vehicle. Refer to the Bump Steer Elimination chart and look up
your caster angle setting to find the correct position for the outer toe links.
Positioning the toe-links correctly will maintain the original factory geometry
and eliminate the unwanted steering angle changes caused by bump steer.
The progressive rate determines how much the force at the wheel
produced by the springs being compressed (wheel force) will vary with
suspension travel (or vertical travel of the wheel). On a progressive
suspension arrangement, the wheel force will increase at a faster and
faster rate as the suspension is compressed. It feels as though the shock
spring gets progressively stiffer the more you compress the suspension.
On a linear suspension arrangement, the wheel force increases linearly as
the suspension is compressed. The spring does not feel any stiffer, even
when the suspension is fully compressed. This provides a very “plush” feeling
suspension with seemingly bottomless suspension travel.
A total of four different rocker arm sets are available for Revo. All rocker arms
except the Long Travel rocker arms will allow the wheel to travel a total of
REVO PLATINUM EDITION 11
•
TUNING ADJUSTMENTS
Rocker Arm
Total Travel
Progressive Rate
can be achieved by installing the optional adjustable push rod in the
outermost hole of the lower suspension arm’s push rod mount. Turn the
rod ends all the way in until they stop (shortening the length).
90mm
(60mm up / 30mm down)
Progressive 1
Low
90mm
The optional Long Travel rocker arms are designed to be used only with
the standard non-adjustable push rods installed in the hole labeled “LT”
(the middle hole of the lower suspension arm’s push rod mount). Any
minor adjustments to the ride height are accomplished by adjusting the
spring pre-load.
Progressive 2
Progressive 3
Long Travel
Medium
High
(60mm up / 30mm down)
90mm
(60mm up / 30mm down)
120mm
(80mm up / 40mm down)
Low
Adjusting the Pivot Ball Caps
90mm in the vertical direction. From the ride height position, the wheel
will be able to travel 60mm in the upward direction (bump), and 30mm
in the downward direction (droop). The Long Travel rocker arm increases
total travel to 120mm. The progressive rate can be increased or decreased
by installing different rocker arm sets. The rockers are labeled Progressive
1 to Progressive 3. Progressive 1 rockers will provide a low progressive rate
that maintains consistent damping force across through the whole range of
suspension travel. These are best for extremely rough terrain that requires
maximum suspension articulation. Progressive 3 rockers use high progressive
rate that will improve high-speed cornering on smooth surfaces by providing
a firmer feel. Body roll, brake dive and rear squat will also be reduced. Always
change all four rockers as a complete set. Do not mix rates and travel.
The pivot ball caps should be adjusted so
that the pivot balls operate freely in the
axle carriers with no excess play. Use the
provided four-way suspension multi-tool to
tighten or loosen the pivot ball cap.
Toe Adjustment
The wheels can be adjusted to point
straight ahead or have a toe-in or toe-
out setting. To help you remember, look
down at your feet. For toe-in, your feet
point towards each other. For toe-out,
your feet point away from each other.
Using rockers with lower progressive rate may require the use of stiffer
springs to maintain proper spring pre-load and ride height. The spring
pre-load adjuster on each shock is designed for minor adjustments. If the
adjuster needs to be turned all the way down (compressing the spring) in
order to maintain proper ride height, then the next stiffer spring should
be used.
The toe angle of the front wheels can be
adjusted by varying the length of the toe
links that connect the steering linkage to
the front axle carriers. The toe angle of
the rear wheels can be adjusted by
varying the length of the metal toe links
Increase
Length
The chart demonstrates the
effect of the various rocker
arms on wheel force as the
suspension is compressed.
On the progressive rate,
wheel force is light at
that connect the rear bulkheads to the
'%
&-
&+
&)
&'
&%
-
+
)
Egd\gZhh^kZꢀ
GViZꢀIgVkZa
rear axle carriers. The front toe links
and rear toe links are equipped with
turnbuckles. The lengths of the toe links
can be adjusted by turning them with the
included 7mm Traxxas wrench.
8dchiVciꢀ
GViZꢀIgVkZa
Decrease
Length
'
first and increases as the
suspension is compressed.
%
&%
'%
(%
)%
*%
+%
,%
-%
.%
Toe Base Factory Settings
Front: 0-degrees
L]ZZaꢀ;dgXZ
Rear: 1-degree toe-in each side
Ride Height Adjustment
The rocker arm suspension uses push rods on each suspension arm.
Changing the length and/or position of the push rod adjusts the
ride height without affecting or compromising other suspension
parameters. For example, you can raise and lower the ride height without
changing up/down travel distribution, changing springs, or affecting
your progressive rate. This feature is unique to Revo and is extremely
beneficial in a racing environment where you can achieve a low center
of gravity (by lowering the ride height) without losing any suspension
capability. Increasing the ride height will increase ground clearance for
rough terrain.
Under certain conditions, toe-in can be increased to a maximum of 3
degrees. To avoid potential interference of suspension components with
the long travel rockers installed, see the maximum alignment limits table
on page 13.
All of the toe links were
Groove indicates left-hand threads
originally installed on the
truck so that the left hand
thread indicators point in the
same direction. This makes it
easier to remember which way
The ride height of the model can be
changed by mounting the push rod in
a different hole in the lower suspension
arm. From the factory, the push rod
comes installed in the center hole of
the lower suspension arm’s push rod
to turn the wrench to increase or decrease toe link length. Note that
a groove indicates the side of the Tube with the left-hand threads.
Static Camber Adjustment
Increases
Ride Height
Decreases
Ride Height
The wheels can be set to have either positive
or negative camber (see illustration, page 13).
The camber angle changes as the wheel moves
up and down through its range of travel. Static
camber is the camber angle at the wheel when
the vehicle is set at its normal, stationary ride
height. The suspension pivot balls located in the
axle carriers adjust the static camber. The pivot
balls are protected by blue dust plugs. To adjust
mount. If the push rod is mounted in the inner hole, the ride height of the
vehicle increases. If mounted in the outer hole, the ride height decreases.
The ride height can be finely tuned by adjusting the sag of the
suspension. Do not attempt to make large changes to the ride height
by adjusting the spring pre-load on the shock bodies. If suspension
sag is severe and requires a large increase of the spring pre-load to
compensate, then a firmer spring should be used. The lowest ride height
12 REVO PLATINUM EDITION
•
TUNING ADJUSTMENTS
your static camber, insert the supplied 2.5 mm hex wrench through the
slit in the dust plug and engage the end of the pivot ball (compressing the
suspension until the arms are parallel to the ground will allow for easier hex
wrench engagement). The upper pivot ball is normally screwed all the way in.
Negative camber is achieved by screwing the pivot ball of the lower control
arm out. Note: When camber is changed, the toe angle of the wheel has to
be reset.
Springs
The front and rear springs on Revo have different spring rates. The rear
springs are about 20% stiffer than the front springs. The spring’s pre-
load tension can be adjusted by turning the spring pre-load adjuster.
Adjusting the pre-load changes the suspension sag. Suspension sag
basically defines how much the suspension compresses when the truck
is at rest. Adjust the pre-load so that the suspension compresses about
one third of its full suspension travel (see illustration). If suspension
sag is severe and requires a large increase of the spring pre-load to
compensate, then a firmer spring should be used. Firmer springs
(supplied) must be used when the Long Travel rocker arms are installed.
Static Camber Base Factory Settings
Front: 1-degree negative camber each side
Rear: 1-degree negative camber each side
Use a stiffer spring to reduce
sag, reduce body lean, control
brake dive, and provide a firmer,
more responsive overall feel. If
Revo is lightened significantly,
softer springs will be necessary
to allow the suspension to sag
#OMPRESSION ꢀꢁꢂ
Negative camber
Positive camber
2IDE (EIGHT
3AG ꢃ$ROOP ꢄꢁꢂ
properly. Heavier configurations
Maximum Alignment Limits (using stock push rod length)
Revo’s maximum toe and camber alignment settings can be limited
by the ride height setting. Do not exceed the maximum limits or you
could experience interference between suspension components. The
ride height is controlled by where the push rod is installed in the lower
suspension arm. First determine which of the following configurations
you are using:
!XLE #ENTERLINE AT -AX #OMPRESSION
will require stiffer springs.
Ride height is adjusted by
changing the length or position
of the push rods in the lower
!XLE #ENTERLINE AT 2IDE (EIGHT
!XLE #ENTERLINE AT -AX 3AG
suspension arms. See Ride Height
Adjustments on page 12. The suspension sag and spring pre-load should
be readjusted anytime the springs are removed and/or replaced.
a. Stock Configuration – When the pushrod is in the middle position of the
lower control arm.
Optional springs available from Traxxas are listed below. Refer to your
parts list for a complete part number listing. Higher rate springs are
stiffer. Springs can be identified by dots of color on one end.
b. Raised Configuration - When the pushrod is in the raised position to
increase the vehicle’s ride height (innermost hole in lower control arm).
90mm Travel
120mm Travel
Dot Color
Yellow
White
Orange
(Standard Front)
Spring Rate
Dot Color
Silver
(Standard Front)
Pink
Blue
(Standard Rear)
Spring Rate
28.0 lb/in (4.9 N/mm)
c. Lowered Configuration - When the pushrod is in the lowered
position to decrease the vehicle’s ride height (outermost hole in
lower control arm).
14.8 lb/in (2.6 N/mm)
16.6 lb/in (2.9 N/mm)
18.3 lb/in (3.2 N/mm)
30.8 lb/in (5.4 N/mm)
33.7 lb/in (5.9 N/mm)
d. Long Travel Configuration – When the pushrod is in the middle
position of the lower control arm with the Long Travel rockers installed.
Green
Gold
20.0 lb/in (3.5 N/mm)
21.7 lb/in (3.8 N/mm)
Purple
36.5 lb/in (6.4 N/mm)
(Standard Rear)
Note: 90mm Travel springs are
not recommended for use with
the Long Travel Rockers.
Front Suspension
The following are suggested maximum settings for the front suspension
in order to avoid interference between suspension components:
Tan
23.4 lb/in (4.1 N/mm)
25.1 lb/in (4.4 N/mm)
Black
SHOCK TUNING
Available
Camber
Available Toe
Shock Pistons
(degrees)
The shock pistons are Variable Damping Pistons. The piston design greatly
enhances the tuning ability of the suspension. The key to the shock’s unique
operation is the flexible plate which seals two of the piston holes. When the
shock is compressed, full damping rate is delivered. While rebounding, this
new valve action allows additional bypass of shock fluid, speeding shock
response. The direction at which the shock responds faster depends on the
orientation of the piston and valve assembly. This is selectable by flipping
the piston assembly into the desired position as shown in the diagrams. For
off-road use, it is generally desirable for the shock to rebound faster than
compress, requiring the valve plate to be on the top of the piston (stock
position). The opposite is generally true for on-road use.
Configuration
(degrees)
Toe In Toe Out
Stock
Raised
+3 to -5
+3 to -1
+3 to -5
+3 to -1
3
1
3
1
3
1
3
1
Lowered
Long travel
Rear Suspension
The following are suggested maximum settings for the rear suspension
for all configurations. Toe out is not normally used on the rear of Revo.
Stock
Flipped
(Valve on top)
(Valve on bottom)
Available
Camber
Available Toe
• Best for On-Road
(degrees)
• Best for Off-Road
Configuration
(degrees)
On Compression:
• Valve Open
• Faster
On Compression:
• Valve Closed
• Max Rate of
Toe In Toe Out
All
+3 to -5
3
2
Compression
Compression
On Rebound:
• Valve Closed
• Slower Rebound
On Rebound:
• Valve Open
• Faster Response
Compression Rebound
Compression Rebound
REVO PLATINUM EDITION 13
•
TUNING ADJUSTMENTS
Shock piston hole sizes
To further alter the characteristics of the variable
rate, the diameter of the bypass holes may be fine
tuned by enlarging them - speeding even further
the rebound rate. Optional pistons with bypass
holes that are larger or smaller (1, 2, or 3) than
the factory installed stock pistons can be used to
decrease or increase damping respectively.
9. Fill the shock with new silicone shock oil up to the
top of the shock body. Slowly move the piston up
and down (always keeping it submerged in oil) to
release the air bubbles. Let the shock sit for a few
minutes to allow any remaining air bubbles to
surface.
1
Piston 1:
1.10 mm
2
87mm
Piston 2:
1.00 mm
10. Slowly thread the upper cap with the installed
shock bladder onto the shock body with the
From the factory, the shocks are filled with
SAE-50W silicone oil. Only use 100% silicone oil
in the shock. The stock Revo is equipped with #2
pistons front and rear.
suspension multi tool (A). The excess oil will bleed
out of the small hole in the shock cap. Tighten the
shock cap until snug. Use the included steel shock
wrench to hold onto shock body while tightening.
3
Piston 3:
0.95 mm
Stock shock center-
to-center distance
Shock disassembly
11. Reinstall the spring and lower retainer.
The shocks must be removed from the vehicle and disassembled to change
the pistons. Use the shock exploded views included with the model to aid
in the assembly process.
TRANSMISSION AND DIFFERENTIAL TUNING
Multi-tool Shock Functions
1. Remove the spring and lower spring
Adjusting the Slipper Clutch
Your Revo is equipped with an adjustable
Torque-Control™ slipper clutch. The
retainer from the shock.
2. Remove the shock cap (A) and empty
slipper clutch is integrated into the
the shock body of shock oil.
main spur gear on the transmission. The
slipper clutch is adjusted by loosening
the spring-loaded locknut on the slipper
shaft. Use the supplied 8mm open-end
3. Remove the lower cap (B) and
the X-ring from the shock body.
A. Tighten/Loosen Upper Cap
4. Use side cutters to grip the shock shaft
just above the rod end (C). Remove the
rod end from the shock shaft using the
suspension multi tool (C).
metric wrench. To tighten or loosen the
slipper nut, insert the 2.0mm hex wrench
into the hole in the end of the slipper shaft. This locks the shaft for
adjustments. Turn the adjustment nut clockwise to tighten (less slippage)
and counter-clockwise to loosen (more slippage). The slipper clutch has
two functions:
5. Remove the shock shaft with piston
from the shock body out through
the top of the shock body.
1. Limiting the engine’s torque output to the wheels to prevent
wheelspin on low traction surfaces and help to prevent damage
to the gears in the transmission during on-throttle landings.
B. Tighten/Loosen Lower Cap
Shock assembly
1. Replace the stock piston with desired
optional piston. Be careful not to lose
the thin steel valve or the small washer
located below the piston.
2. Protecting the drivetrain from sudden impact or shock loads (such as
landing from a jump with the engine at full throttle).
From the factory the slipper clutch is set for minimal slippage, just
enough to protect the drivetrain from shock loads. On slippery, low
traction surfaces such as a hard-packed, dry racetrack you may benefit
from loosening the slipper adjustment nut to allow for more clutch
slippage. This will make the truck easier and more forgiving to drive
by helping to reduce the amount of wheel spin. Loosening the slipper
adjustment can also improve performance on extreme high traction
surfaces by preventing the front end from lifting off of the ground when
accelerating. Make slipper adjustments in small 1/8 turn increments.
2. Position the new piston onto the shock
shaft above the small washer. Grip the
threads of the shaft with side cutters
C. Remove/Install Rod End
or needlenose pliers and tighten the
nut with the 4-way wrench to secure the
assembly. Only tighten the nut enough to
remove vertical “play” of the piston. Over
tightening the nut will deform the steel
valve and cause the shock to malfunction.
The piston should be free to rotate on the
shaft when tightened.
The maximum tight setting for the slipper is just at the point where
there is little or no tire slippage on a high traction surface such as carpet
or a prepared racetrack. The slipper should not be tightened to the point
that clutch slippage is completely eliminated. Do not overtighten the
slipper nut or you could damage the slipper bearings, pressure plates, or
other components.
Piston Installation/Removal
3. Insert the shock shaft assembly through the
shock body until the piston bottoms out.
4. Lubricate the shaft and X-ring with silicone oil.
5. Install the X-ring over the shaft and into the
bore of the shock body.
6. Install the lower cap using the suspension
multi tool (B).
7. Slide the bump stop onto the shaft.
8. Grip the shaft close to the threads with needle nose pliers or side
cutters and thread the rod end onto the shock shaft until the rod end
bottoms out (C).
14 REVO PLATINUM EDITION
•
TUNING ADJUSTMENTS
4. Remove the three screws on the slipper clutch
Adjusting the Two-Speed Transmission
assembly using a 2.5mm hex wrench. Slide the
spur gear off of the slipper shaft. If the spur gear
is too tight on the shaft, gently pry on the back
of the gear with a flat screw driver to loosen it.
Revo comes equipped with an adjustable two-speed transmission. When
the shift point on the transmission is adjusted correctly, it will maximize
acceleration and improve driveability. Use a 2mm hex wrench to adjust the
shift point. To make the adjustment, the engine must be off (not running).
Repeat the above steps in reverse order to install
the new spur gear.
1. Remove the rubber access plug from
the top of the transmission housing.
2. While looking through the opening,
rotate the spur gear to align the cutout
(notch) on the internal two-speed clutch
drum with the opening.
Adjusting the Gear Ratio
The gear ratio on Revo can be adjusted for different conditions that may
require either increased acceleration or increased top speed. Adjusting the
gear ratio is accomplished by changing the clutch bell on the engine and/
or the spur gear (slipper clutch gear) on the transmission. From the factory,
Revo is equipped with a 15-tooth clutch bell and a 38-tooth spur gear. This
combination will provide a good balance of acceleration and top speed.
Optional spur gears and clutch bell gears are listed on your parts list. Refer
to the gear ratio chart for possible gearing combinations.
3. Hold the spur gear and slowly roll the
truck forward until the hex on the black
adjustment set screw becomes visible in
the opening. Note: the truck will only roll
forward (not backwards) when the spur gear
is held stationary.
Adjusting the Two-Speed Ratios
4. Insert the 2.0mm hex wrench through the
Revo is equipped to allow adjustment to the two-speed by installing
optional standard and wide-ratio gearsets. This requires transmission
The standard ratio gearsets will increase top speed slightly. The optional
wide-ratio gear set can also be installed in the Revo. The additional
horsepower and torque output of the TRX 3.3 engine provides seamless
shifting even with the larger gap between first and second gears. The gear
ratio chart shows the available combinations with optional spur gears,
clutch bells, and two-speed gear sets.
clutch drum and into the adjustment screw.
5. Turn the adjustment screw 1/8 turn
counter clockwise to lower the shift point
(shifts sooner). Be careful not to loosen the
adjustment screw too much or you may cause
the screw and spring to fall out (requiring
major disassembly and repair). Turn the
adjustment screw clockwise for later shifts.
6. Reinstall the rubber access plug to prevent
dirt from entering the transmission. Do
not put oil or other lubricants into the
transmission through the two-speed
adjustment access.
Shift
Sooner
Gear Ratio Chart
# of Spur Gear Teeth
36 38 40
With 14T Clutch Bell
2nd gear sets
Gear
17T/39T
1st
2nd
1st
2nd
1st
24.21 25.55 26.90
16.79 17.72 18.66
24.21 25.55 26.90
18.30 19.31 20.33
24.21 25.55 26.90
15.45 16.31 17.17
7. Check performance by running a test lap after each adjustment. On a
small race track with many tight turns, try setting the shift point later
so that the truck only shifts into second gear on the main straightaway.
This will prevent an unexpected shift in the middle of a turn. On larger
tracks it may be necessary to allow earlier shifts for increased speed.
(Standard)
16T/40T
(Close)
18T/38T
(Wide)
2nd
Adjusting the Spur Gear/Clutch Bell Gear Mesh
The ideal spur gear/clutch bell gear mesh for
Revo is 0.1mm. To set the gear mesh, place
a strip of standard letter/A4 size copy or
# of Spur Gear Teeth
With 15T Clutch Bell (standard)
2nd gear sets
17T/39T
(Standard)
Gear
1st
2nd
1st
2nd
1st
2nd
36
38
40
22.59 23.85 25.10
15.67 16.54 17.41
22.59 23.85* 25.10
17.08 18.03* 18.97
22.59 23.85 25.10
14.42 15.22 16.02
printer paper (about 0.1mm thick) between
the mating teeth. Loosen the two horizontal
engine mount screws and slide the engine
mount up to push the clutch bell gear against
the spur gear so that the that the paper is not
too tight to pull out or too loose that it will fall
out. Tighten the two horizontal engine mount
screws securely. When the paper is removed,
you should feel only the slightest amount of
play between the gears (almost none) and
there should be no binding or friction.
16T/40T
(Close)
18T/38T
(Wide)
# of Spur Gear Teeth
With 16T Clutch Bell
2nd gear sets
Gear
36
38
40
17T/39T
1st
2nd
1st
2nd
1st
21.18 22.36 23.54
14.69 15.51 16.32
21.18 22.36 23.54
16.01 16.90 17.79
21.18 22.36 23.54
13.52 14.27 15.02
(Standard)
16T/40T
(Close)
18T/38T
(Wide)
2nd
Changing the Spur Gear
1. Remove the four cap head screws that
# of Spur Gear Teeth
With 17T Clutch Bell
2nd gear sets
Gear
36
38
40
secure the engine to the engine mount.
17T/39T
1st
2nd
1st
2nd
1st
19.94 21.04 22.15
13.83 14.60 15.36
19.94 21.04 22.15
15.07 15.90 16.74
19.94 21.04 22.15
12.72 13.43 14.14
2. Remove the button head screw that
secures the pipe hanger to the rear body
mount (see inset).
(Standard)
16T/40T
(Close)
3. Carefully remove the engine and exhaust
system from the spur gear area to allow
enough room to remove the spur gear.
18T/38T
(Wide)
2nd
*stock configuration out of the box
REVO PLATINUM EDITION 15
•
TUNING ADJUSTMENTS
If necessary, fine-tune the length of the second steering link to eliminate
any load on the steering system in the neutral position.
Tuning The Sealed Gear Differentials
Revo’s front and rear gear differentials allow the left and right wheels to
spin at different speeds while turning so that the tires do not scuff or skid.
This decreases the turning radius and increases steering performance.
41.8 mm
The performance of the front and rear differentials can be tuned
for different driving conditions and performance requirements. The
differentials are filled with silicone differential fluid (oil) and are sealed
to maintain consistent long-term performance. Changing the oil in
the differentials with either lower or higher viscosity oil will vary the
performance characteristics of the differentials.
Steering Link Length Template
If you are using aftermarket servos, it is important to use servo horns
designed for Revo. Optional steering servo horns are sold separately for use
with non-Traxxas servos.
Changing to a higher viscosity oil in the differential will reduce the
tendency for engine power to be transferred to the wheel with the least
traction. You may notice this when making sharp turns on slick surfaces.
The unloaded wheels on the inside of the turn have the least traction and
tend to spin up to extremely high rpms. Higher viscosity (thicker) oil causes
the differential to act like a limited-slip differential, distributing more
equal power to the left and right wheels. Revo will generally benefit from
higher viscosity oil when climbing, rock crawling, or racing on low traction
surfaces. Note: Heavier oil will allow power to be transferred even with one
or more tires off the ground. This can make the vehicle more likely
to overturn.
Servo Saver Tuning
An optional stiffer spring is available for the servo saver when using servos
with metal gear sets (see parts list for details). Do not use this spring with
standard Traxxas high-torque servos.
BRAKE SETUP & ADJUSTMENT
Revo is equipped with front and rear disc brakes. The brakes are preset at
the factory and should not require attention. As the brake material wears,
future adjustments may be necessary.
From the factory, the front differential is filled with SAE 50,000W oil and
the rear differential is filled with 10,000W oil. The center differential is filled
with SAE 500,000W oil. For the best center differential performance, only
use the 500,000W diff fluid. This viscosity provides the best balance for
acceleration and handling. Power will be more equally distributed to the
front and rear differentials. Lighter viscosity center diff fluid may increase
the tendency for the front tires to be over-driven (spin faster than the rear
tires). Over-driving the front tires will reduce handling and acceleration
authority. Only use silicone differential fluid (oil) in the differentials. Traxxas
sells a range of oil viscosities (see your parts list). The differentials have to
be removed from the vehicle and disassembled to change/replace oil.
Brake Shoulder Screw Adjustment
The two shoulder bolts that are
0.5mm
used to secure the brake pads to the
transmission housing may need to
be adjusted periodically as the brake
material wears down. They should be
tightened so a 0.50mm (.020”) gap
gap
exists between the disk and the brake pad (on the transmission side).
Adjust in one of the following ways:
1. Use a .50mm feeler gauge between the brake pad insert and brake disk.
2. Push the outer brake pad firmly against the inner pad with your finger,
sandwiching the brake disk between the brake calipers. Tighten the
brake shoulder bolts until they just barely touch the brake pads. Do not
over tighten these fasteners or you could damage the brake calipers.
Loosen each of the shoulder bolts by 1 turn.
DUAL SERVO STEERING SYSTEM
Revo uses dual-servo steering and a single heavy-duty servo saver for
powerful, responsive steering. To prevent unnecessary receiver battery
drain it is important to make sure that the servos are “at rest” when the
steering is at neutral. If one servo is out of adjustment, then both servos
will work against each other, fighting to find center.
Brake Linkage Adjustment
When correctly adjusted, the brake linkage
spring should barely touch the rod guide
when the servo is in neutral position (closed
throttle). This will ensure no brake drag
during operation of the vehicle. The brake
adjustment knob can be threaded away
from the spring for less braking power
if desired. Do not adjust knob to apply
pressure against the spring while the
servo is in the neutral position. This will
induce brake drag and cause undesirable
handling.
Less Brake
Adjusting The Steering System
1. Remove the servo horns and steering links from the servos.
Disconnect the steering links from the servo saver.
Brake
Linkage
Spring
2. Adjust both the steering links to be the exact same length (41.8mm -
use “Steering Servo Horn Link Length Template” below to set length).
3. Switch on the power to the receiver and the transmitter.
4. Adjust the steering trim on the transmitter to the neutral “0” position.
5. Connect one end of a steering link to the steering servo saver arm and
the other end to the servo horn
6. Position the steering servo saver arm
perpendicular to the centerline of the vehicle.
The position of the z-bend from the
7. While holding the steering servo saver arm
in the position mentioned in step 6, install
the servo horn onto the servo such that the
steering link is parallel with the centerline
of the vehicle. This will automatically set the
servo horn at the 7-degree offset shown in the
illustration.
factory is the middle position of the servo
horn for the front brakes and in the rear
position for the rear brakes. Changing this
position will affect the way the brake force
is applied. The brake adjustment knob will need to be readjusted if this
position is changed.
Front of Truck
8. Install the second servo horn on the other side
following the same procedure.
16 REVO PLATINUM EDITION
•
TUNING ADJUSTMENTS
Brake Set-up Tips
WING ADJUSTMENT
The wing mount can be adjusted for both height and deflection angle.
•
All four wheels should lock at the same time. This is the base setting
for the brake system. If the brakes do not engage simultaneously, then
thread the adjustment wheels in toward the brake levers until they
actuate the brakes when pushing the transmitter trigger forward.
•
The two top holes set the wing height. Using the
upper hole will lower the level of the wing by
approximately 3/8 inches.
•
•
•
•
Front brake bias - Setting the front brakes to engage before the rear
brakes will create a slight push while entering a corner.
•
The lower three holes adjust the angle of wing
incidence. By using the rear hole, wing down
force will be maximized by adding negative wing
deflection. For less deflection, the front holes can
be used to fine tune the amount of down force
needed for your track conditions.
Rear brake bias - Setting the rear brakes to engage before the front
brakes will cause the truck to oversteer when entering a corner.
Use different brake bias settings to tailor the handling characteristics of
the truck to suit your driving style in different conditions.
The dual rear brake is intended for off-road use. It is not intended for
repeated brake application on concrete or pavement.
Brake Pad Wear and Replacement
During normal use the brake pads should wear at a relatively slow rate.
However, if the brake pads wear down close to the metal pad holders, they
should be replaced. Any more wear than this could cause damage to the
brake parts and improper operation of the brake system.
SWAY BAR SETTINGS AND ADJUSTMENTS
•
The sway bar set includes two different front and
rear sway bars. The thicker of the two (black) is
stiffer and will further reduce body roll in cornering.
Softer
•
Adjust the sway bar links so the sway bars are
almost vertical while the truck is on the ground
and the suspension is at rest (normal ride height).
This allows equal sway bar travel in both unloaded
and loaded suspension conditions. Always adjust
the left and right sway bar links equally to prevent
suspension tweak.
Stiffer
•
The Adjustable hollow balls can be raised or
lowered closer to or further from the sway bar mount (pivot point) to
increase torsion response and fine tune the sway bar’s response for
different track conditions. Closer to the pivot point results in a stiffer
setup, further from the pivot point will result in softer sway bar response.
For smooth surfaces with high traction:
•
Use black front and rear sway bars. Adjust linkage placement for stiffer
response (lower on sway bar).
For rough surfaces with low traction:
•
Use silver front and rear sway bars. Adjust linkage placement for softer
response (higher on sway bar).
To reduce understeer (pushing in corners):
•
Use silver front sway bar. Adjust front linkage placement for softer
response (higher on sway bar).
•
Use black rear sway bars. Adjust linkage placement for stiffer response
(lower on sway bar).
To reduce oversteer (loose in corners):
•
Use black front sway bars. Adjust linkage placement for stiffer response
(lower on sway bar).
•
Use silver rear sway bar. Adjust front linkage placement for softer
response (higher on sway bar).
REVO PLATINUM EDITION 17
•
INDEX
Address 3
Springs 13
Spur gear
Air filter 6
Alignment; See Suspension and Alignment
maximum limits 13
Antenna crimp nut 4
Antenna tube 4
Brake 16
changing 15
mesh 15
Starter box 3, 6, 8
Steering 16
Supplies 3
linkage adjustment 16
pads 17
Support 2
Suspension and Alignment 11–12
bump steer 11
set-up 17
elimination 11
shoulder screw adjustment 16
Charging jack 4
Clutch bell 15
camber 12
base factory settings 13
negative 13
positive 13
Decals 5
Differentials 16–17
Engine (TRX 3.3 Racing Engine) 6
break-in 7–9
caster adjustment 11
caster angle 11
pivot ball caps 12
ride height 12
cold weather 9
tuning 9–10
rockers 11
by temperature 10
fine-tuning the carburetor 10
Equipment 3
roll center 11
toe 12
base factory settings 12
Sway bar 17
Factory needle settings 8
Fuel 6
Tire gluing 5
handling 7
Tools 3
nitro percentage 6
Glow plug 7
Transmission 14–15
adjusting the two-speed 15
gear ratio 15
igniter (glow driver) 6
High-Speed Fuel Mixture Adjustment 9
Idle Speed Adjustment 10
Low-Speed Fuel Mixture Adjustment 10
Painting 5
two-speed ratio 15
Tuning adjustments 11
Wing adjustment 17
Receiver 3, 4
antenna 4
battery; See RX Power Pack
RX Power Pack 4
care 4
Safety 3
Servos
steering 4, 16
throttle 4
Shocks 13
assembly 14
disassembly 14
pistons 13
Slipper clutch 14
18 REVO PLATINUM EDITION
•
NOTES
REVO PLATINUM EDITION 19
•
|