This is the Traxxas TRX 3.3 IPS Shaft Nitro Engine without a Pull-Start.  This version is for use in all Traxxas TRX 2.5 and TRX 3.3 equipped vehicles with flywheel access. It requires the use of an electric bump starter or starter box and will not accept a pull start or the Traxxas EZ-Start system.

Engine shown has EZ-Start and engine mount.  These are not included.

Includes: Traxxas TRX 3.3 Racing Engine with IPS crankshaft, air filter, filter oil, setup DVD, illustrated instruction manual and glow plug

Features:
Extreme power output
60% more peak horsepower than the TRX 2.5
Nearly 50% more total power under the curve
Consistent and smooth throughout the entire power band
Straight-through exhaust flow
TRX composite slide carburetor
TRX IPS crankshaft
Knife-edged connecting rod
Long rod design
Offset wrist pin
Large aluminum blue-anodized cooling head
Molded head protector protects the cooling head from damage
Head protector is securely fastened with screws
High-volume air filter does not restrict air intake
O-ring exhaust gasket
Super-light piston and rod
Square reciprocal geometry
High-performance ball bearings
100% drop-in compatibility with TRX 2.5 equipped models
Backed by Traxxas Lifetime Engine Replacement Plan

Traxxas TRX® Racing Engines are fueled by a passion for performance, innovation and quality. Traxxas engineers are dedicated to redefining the state of the art in engine technology. This includes listening to our customers, and developing new standards and conventions that would meet the performance challenge.

The TRX 3.3 Racing Engine draws from a legacy of precision Traxxas engine design and manufacturing. Traxxas has always been at the forefront of innovation, beginning with the powerful and reliable TRX® Pro.15. Next, the Traxxas EZ-Start® system ushered in a new era of convenience and ease of use with true, push-button electric starting. EZ-Start later evolved to incorporate built-in diagnostic functions, LED indicators, a constant-voltage glow plug circuit, and more powerful starter motors. Then came the TRX 2.5, a marvel of award-winning power and technology that sent the bar for Ready-To-Race® performance to unimaginable new heights.

Fast forward to the present and over 14-years of nitro engine development have culminated into the most powerful TRX engine ever made, the new TRX 3.3 Racing Engine. It embodies everything we’ve learned from over a decade of making engines more powerful, more reliable, and easier to use. The TRX 3.3 Racing Engine is so powerful it establishes a whole new classification of powerâ¦. Extreme Power!

The TRX 3.3 produces an extreme 60% more peak horsepower compared to the TRX 2.5! The overall power under the curve is nearly 50% greater to deliver the smooth, linear power output TRX engines are famous for. The TRX 3.3 Racing Engine offers thoroughbred race engine performance that’s absolutely second to none. There’s no penalty to pay for having more power either. The TRX 3.3 Racing Engine features simple, reliable tuning from the two-needle composite slide carburetor. Plus it’s backed by the support and reliability you expect from Traxxas including the Exclusive Lifetime Engine Replacement Plan.

The TRX 3.3 Racing Engine is truly the pinnacle of power and reliability and represents the commitment to total performance Traxxas carries to the customer.

Extreme Power
Reliability
Ease of Use
Unmatched Support

Extreme Upgrades
The Lifetime Engine Replacement Plan is the extreme power upgrade path for any model equipped with a TRX 2.5 or 2.5R Racing Engine. When you’re ready, you can use the plan to trade up to the TRX 3.3 Racing Engine and watch your speed and acceleration soar. The TRX 3.3 is 100% “drop-in” compatible with TRX 2.5 and 2.5R equipped models. For less than the price of a poorly supported aftermarket engine, you can have extreme TRX 3.3 power with 100% drop-in installation, full Traxxas reliability and support, and power that is absolutely second to none. Ask your hobby dealer for all the details.

Straight-through Exhaust Flow
The rear facing round exhaust port provides unrestricted "straight-through" exhaust flow. There are other rear exhaust engines, but the innovative shape of the TRX 3.3's exhaust port was carefully engineered to provide unrestricted exhaust flow while at the same time, maintaining a low exhaust port height. The low exhaust port height provides a longer duration power stroke for increased efficiency and total power output.

Piston and Sleeve
The lightweight reciprocating assembly allows higher revving performance and reduced parts stress. The piston is composed of proprietary material resulting in less wear and extended engine life. The material for both the piston and sleeve (true ABC construction) were selected for their consistent fit throughout the engine's operating temperature range. The sleeve ports are larger offering more efficiency and better scavenging for increased power..

Connecting Rod
Knife-edged connecting rod reduces internal drag and turbulence designed to handle the power of the TRX 3.3. The channeled design directs oil flow down to the crankshaft.

Ball Bearings
The quality and smoothness of an engine's ball bearings contribute to the life and performance of the engine. The TRX 3.3 uses only top-grade, ultra-high performance, large diameter ball bearings. Top quality bearings improve power by reducing parasitic friction. The rear engine bearing uses a high-tech composite cage for reliable operation at engine speeds that approach 50,000rpm!

TRX Composite Slide Carburetor
The TRX 3.3 is equipped with same high-performance slide carburetor that has reliably powered a generation of TRX Racing Engines. The slide type carburetor provides less restrictive, straight through airflow for more power and improved throttle response. Because it is molded, Traxxas engineers incorporated superior internal design enhancements and precision not possible with traditional machined carburetor. The composite material does not transfer heat like aluminum for more consistent tuning.

Crankcase
The TRX 3.3 uses a new crankcase engineered with high-tech porting, and cooling refinements to boost power output. Precision casting provides the strength needed for the TRX 3.3’s high power output. The external dimensions allow the TRX 3.3 to fit anywhere a TRX 2.5 or TRX 2.5R was installed.

PowerTune™ Head
The giant Powertune machined aluminum cooling head promotes even heat distribution for stable engine temps and rock-solid tuning consistency. The newly designed molded head protector is securely fastened to the top of the head with precision hex screws.

High-Volume Air Filter
The air filter is often overlooked as being a key to engine performance and life. Not so with the TRX Racing Engines! It's ultra low-restriction air filter provides superior air-flow and filtration for more power and long engine life. The inside of the filter mates perfectly to the carburetor to eliminate turbulence as air passes through the carburetor. The two-stage design features a reusable oiled foam element that's easy to maintain, and a built-in fine-mesh pre-filter.

Specifications:
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)