TRA5207R Traxxas TRX 2.5R Engine IPS shaft w/ recoil starter

This is the Traxxas 2.5R Racing Engine with IPS (Integrated Pilot Shaft) and Pull-Start.  For use in all Traxxas vehicles that use the TRX 2.5 engine. This engine is a .15 engine. The 2.5 refers to a measurement of Cubic centimeter displacement compared to Cubic Inch displacement (.15).

Features:

• Slide carburetor provides less restrictive, straight through airflow for more power and better throttle response.
• PowerTune head is machined from aluminum which promotes even heat distrubution for stable engine tempatures and rock-solid tuning.
• New sleeve for improved engine efficiency and better power.
• Molded head proctector prevents damage to the head and secures the glow plug wire.
• Ultra-low restriction air filter provides superior air flow and filtration for more power and a long engine life.
• Offset wrist pin further reduces piston slide loading for more even cylinder wear, and longer engine life.

Includes:

• One 2.5 (0.15cu in) Engine with Pull Starter w/flywheel nut
• One 90 degree air filter (includes base for upright mounting)
• One 22 chapter Engine Set-up DVD
• One Owners manual/instruction booklet
• One bottle of air filter oil
• One Decal sheet
• One pre-installed glow plug

Specs:

Displacement:0.15 cu in (2.49cc)
Crankshaft Thread: 5mm (.197")
On-Center Mounting Holes, Front to Rear: 11mm (.433")
On-Center Mounting Holes, Side to Side: 31.4mm (1.24")
Back of engine (recoil) to front of drive washer: 73.2mm (2.88")
Height: 97.3mm (3.83")
Inner Exhaust Port Diameter:  9.9mm (.392")
Outer Exhaust Port Diameter: 13.0mm (.512")

Note:  The TRX 2.5R (REVO) engine has a different cylinder head, crankcase,and sleeve than the TRX 2.5. All of the upgrade parts from the TRX 2.5R will fit on the TRX2.5