Traxxas TRX 3.3 Multi-Shaft w/Pull Start

Tower Stock# LXMHR4  •  Manufacturer Stock# 5409
Traxxas TRX 3.3 Multi-Shaft w/Pull Start (large view)
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Notes from our tech department:
This is the Traxxas TRX 3.3 Multi Shaft Racing Engine with Pull Starter.
This version includes threaded crankshaft inserts for
"short" and "standard" applications.


For use in all Traxxas TRX2.5 and TRX 3.3 equipped vehicles
Pull starter can be removed to install the EZ Start
60% more peak power than the TRX2.5, with nearly 50% more power
under the curve for strong linear acceleration
Two threaded crankshaft inserts for "short" and "standard"
Rear exhaust
Molded LCP (Liquid Crystal Polymer) body slide valve carburetor with
high-volume air filter
Blue anodized aluminum cooling head with molded head protector


Traxxas TRX 3.3 Multi Shaft Racing Engine with Pull Starter, glow
plug, two crankshaft inserts, air filter, filter oil, setup DVD,
illustrated instruction manual


Fuel: Car fuel blend with 10-33% nitro content


Displacement: .20 cu in (3.3cc)
Specs such as bore, stroke, RPM and horsepower are not provided,
contact Traxxas for further details
Weight: 10.6oz (300g)
Distance between mounting holes same side: 0.43" (11mm)
Distance between mounting holes opposite side: 1.2" (32mm)
Distance from center of engine to front bearing: 1.2" (32mm)
Distance/bottom of mounting flanges/top of cylinder head: 3.6" (92mm)
Distance /crankcase bottom to top of cylinder head: 44" (105mm)
Width of mounting flanges: 1.5" (39.5mm)


Other versions of the TRX 3.3 engine include;
#5404 Single Shaft without Starter, TRAG5404
#5406 Multi-Shaft without Starter,
#5407 Single Shaft w/Recoil Pull Starter, TRAG5407

Some notes on slide valve and rotary carburetors.
Rotary carbs offer a larger response in the middle of the power
band. This works well for off-road applications when throttle
response must be varied.
Slide Valve carbs provide greater response at the beginning and end
of the power band. This works well for on-road and racing
applications for fast take-offs and high speed.

jxs 2/22/06

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