Traxxas TRX 2.5R Racing Engine with Recoil Pull Start TRA5207R
TRA5207R Traxxas TRX 2.5R Racing Engine W/Recoil Pull Start

Traxxas TRX 2.5R Racing Engine with Recoil Pull Start TRA5207R

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Traxxas racing engine with recoil and pull start

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).
60% More Power that the TRX Pro .15 engine!
Loaded with advanced features such and the free flowing rear exhaust, the
unique composite slide carb, and innovative porting only found on the mostexotic racing engines.

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.
This package 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

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

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")

Review Summary

Reviews

5 Stars EASY TO TUNE

T.FERRIS from CA wrote (June 19, 2014):

way easier to tune and gave life back to my truck

3 Stars ok

cheyne from auckland wrote (April 08, 2012):

good engine but should come with flywheel and clutch parts fitted to the engine