O.S. Engine OSMG2074 28XZ Truggy Tuned Engine  [OSMG2074]

O.S. Engine OSMG2074 28XZ: Truggy Power and Control

For heavy truggy builds that need dependable punch, the O.S. Engine 28XZ is a go-to option. Developed with input from top truggy drivers, this unit balances usable torque and smooth throttle response so racers and weekend drivers get consistent lap-to-lap performance.

Cooling and Power Delivery

The O.S. Engine 28XZ pairs compact displacement with strong output. With 0.284 cu in (4.65 cc) displacement and a peak of 3.31 hp at 32,000 rpm, it provides the kind of midrange and top-end needed on fast, rough tracks. The larger two-piece head and inner head button design help dissipate heat under race conditions.

Built for Tuning and Longevity

Durability is built into the 28XZ via a sealed front bearing and a high-performance inner bearing in the crankcase. The connecting rod uses oiled bushings for long life, and the included three-needle 21J slide-valve carburetor gives precise fuel control for tuners who like to dial in settings.

Recommended Pipe and Flywheel Choices

To get the most from the O.S. Engine 28XZ consider the Mark Pavidas Edition Tuned Pipe (OSMG2969) for improved exhaust efficiency. Certain truggy chassis run specific flywheel sets for best drivability, with popular options available for Mugen and Kyosho models.

If you want a balance of torque, tunability and rugged construction for truggy duty, the O.S. Engine 28XZ is a solid contender that works well with common performance accessories.