O.S. Engine OSMG2072 21VZ-R Turbo II Performance .21 Motor  [OSMG2072]

Compact Turbo Engine Built for On-Road Racing

The O.S. Engine 21VZ-R Turbo II, model OSMG2072, brings a race-minded layout to 1/8 scale on-road cars. Its combination of tuned internals and solid hardware is aimed at drivers who push engines hard during heats and qualifiers.

Optimised Internal Flow and Port Design

Refinements to the internal crankcase improve mixture distribution while the re-shaped liner port contributes to a more even power curve. These changes help the engine stay responsive from low revs up to top end.

Turbo Head Layout and Hardened Piston

The button-shaped inner head enhances high rpm breathing and the bar-stock piston boosts structural durability. Combined with the traditional two-piece turbo head and rear exhaust, the result is a familiar but upgraded racing package.

Tuning Flexibility and Installation Options

With a 20K slide-valve carburetor, tuning becomes more precise for track-specific settings, and the repositionable fuel inlet nipple simplifies installation across different chassis designs.

Drivers who value tunability and robust parts will find the O.S. Engine 21VZ-R Turbo II suited to competitive meets. It keeps setup options open while offering race-ready components.