O.S. Engine OSMG2072 21VZ-R Turbo II Turbocharged .21 Powerplant  [OSMG2072]

Race-Focused Turbo Power from O.S. Engine

The O.S. Engine 21VZ-R Turbo II, carrying the OSMG2072 model code, delivers compact performance for 1/8 scale on-road use. It blends proven durability with track-oriented refinements to support spirited laps and consistent behaviour under load.

Improved Mixture Flow and Porting

Modifications to the internal crankcase encourage better mixture circulation while the re-shaped liner port smooths out power delivery. These enhancements help maintain usable torque throughout the rpm range for circuit work.

High-RPM Head and Strong Piston

The button-style inner head promotes stronger high-end rpm response, and the piston machined from bar stock increases longevity under race conditions. The two-piece turbo cylinder head and rear exhaust maintain a familiar service and tuning profile.

Fine Tuning with 20K Carburetor

The 20K slide-valve carb provides precise control over fuel metering, and the repositionable universal fuel inlet nipple makes it easier to route fuel lines depending on chassis orientation.

The O.S. Engine 21VZ-R Turbo II fits tuners who want a compact race engine with room for setup adjustments. Its construction supports repeatable performance for club meets and practice sessions.