Turbo technology – in a marine engine!
It's the first-ever turbo engine for boat racers!
- The 21VZ-M boasts ABC construction and a liner porting and inner head designed specifically for high nitro boat competition.
- Other high-performance features include a water-cooled plug cap and 2K flywheel.
With the intake mounted directly on the plug, cooling water is channeled to the center of the head — the engine's hottest point — before exiting. |
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A big bore (10 mm) on the 21D carburetor boosts power to the maximum. |
SPECIFICATIONS
Stock Number: OSMG1627
Displacement: 0.2 cu in (3.46 cc)
Bore: 0.65 in (16.6 mm)
Stroke: 0.63 in (16.0 mm)
Practical rpm: 3,000-40,000
Output: 2.5 hp @ 33,000 rpm
Weight: 12 oz (340 g)
Includes: P7 turbo plug
13950 21VZ-M parts listing
Turbo technology – in a marine engine! 
