O.S. 21XZ-B VII buggy engine

New from O.S. comes the 21XZ-B VII competition buggy engine. Sharing the same liner, piston and conrod as the Speed version the engine’s output is comparable to the Speed Spec II but the price tag is more aimed towards the regional and national level racer. The engine features a 22B2 single needle carburettor with 7mm venturi insert, a silicone-filled crankshaft with tungsten counter weights and a blue anodised low-profile cooling head with lightening holes for reduced weight.

Specifications:
Displacement: 3.49 cc
Bore: 16.27 mm
Stroke: 16.8 mm
Practical RPM: 4,000-45,000
Power Output: 34,000 rpm
Weight: 362 g

Source: Hobbico [hobbico.com]