O.S. Speed Tuned 21VZ-B V-Spec II World Edition Engine

Mar 16, 2009 No Comments by

New from O.S. Engines:

The engine that powered Atsushi Hara to victory at the 2008 1/8 off-road world championships!

The O.S. Speed Tuned 21VZ-B V-Spec II World Edition engine is factory tuned, and includes “tweaks” of a world champion racer! Its 18 holes lighten the heat sink head’s weight while the aluminum heat sink transfers heat more efficiently for better cooling. The 4-port cylinder lines combined with the specially coated and balanced crankshaft and ceramic rear bearing deliver the perfect blend of power and performance. A different set of carb restrictors ( 6 mm, 6.5 mm & 7 mm) is included. Special “World Champion” is laser engraved on the engine.

Specifications:

Displacement: .21 cu in (3.46 cc)
Bore: 0.654 in (16.6 mm)
Stroke: 0.63 in (16.0 mm)
Practical rpm range: 3,000-40,000
Output: 2.5 hp @ 34,000 rpm
Weight: 12.3 oz (349 g)
Includes: 6 mm, 6.5 mm & 7 mm carb restrictors

OSMG2070 Speed Tuned 21VZ-B V-Spec II World Edition $529.99

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