This is the Traxxas TRX 3.3 Racing Engine without Starter
and with IPS (Integrated Pilot Shaft) Crankshaft.
This version requires use of a bump starter or starter box
and will not accept a pull start or the Traxxas EZ-Start system.
FEATURES: For use in all Traxxas TRX2.5 and TRX 3.3 equipped vehicles with
60% more peak power than the TRX2.5, with nearly 50% more power
under the curve for strong linear acceleration
One-piece IPS crank provides precise gear mesh and eliminates
Molded LCP (Liquid Crystal Polymer) body slide valve carburetor with
high-volume air filter
Blue anodized aluminum cooling head with molded head protector
INCLUDES: Traxxas TRX 3.3 Racing Engine with IPS crankshaft, air filter, filter
oil, setup DVD, illustrated instruction manual and glow plug
REQUIRES: Bump starter or starter box of modeler's choice
Fuel: Car fuel blend with 10-33% nitro content
SPECS: Displacement: .20 cu in (3.3cc)
Specs such as bore, stroke, RPM and horsepower are not provided,
contact Traxxas for further details
Weight: 9.1oz (257g)
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)
COMMENTS: Other versions of the TRX 3.3 engine include;
#5406 Multi-Shaft without Starter, TRAG5406
#5407 Recoil Pull Starter, TRAG5407
#5409 Multi-Shaft w/Recoil Pull Starter, TRAG5409
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.