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NITRO RUSTLER
THE TRX
®
2.5 RACING ENGINE
INTRODUCTION
The TRX 2.5 Racing Engine is a specialty high-performance racing
engine. Its impressive performance is the result of years of focused
engineering development and thousands of hours of controlled
testing and rigorous real-world running. It offers unprecedented
power and performance that turns ready-to-run into Ready-To-Race
®
.
The TRX 2.5 Racing Engine takes a total-system approach. Each part of
the engine, from the air filter to the exhaust tip, is carefully engineered
to work in harmony with other engine components. Each part
complements the next to extract maximum power. The TRX 2.5 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.
In order to get the longest engine life and keep the TRX 2.5 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!
BREAK-IN
The TRX 2.5 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 2.5 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.
AIR FILTER MAINTENANCE
A clean air filter is critical for long engine life. Due to the high-
performance nature of the TRX 2.5 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.
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.
Traxxas strongly discourages
changing or modifying any
part of the TRX 2.5 Racing
Engine. Old tech tips and
tricks that may have boosted
the power of other engines
could seriously diminish the
performance of the
TRX 2.5 Racing Engine.
There’s more advanced
thinking, development, and
testing in the stock parts of
your TRX 2.5 Racing Engine
than in many aftermarket
manufacturer’s performance
parts. The TRX 2.5 Racing
Engine is already one of the
most powerful engines in its
class and may not benefit from
average, low-tech, aftermarket
bolt-on performance items.
