OS Speed B2105 .21 Nitro Buggy Engine

OS Speed B2105 .21 Nitro Buggy Engine

OS-1EK00 OS Speed B2105 .21 Nitro Buggy Engine

OS Speed's B21 off-road racing engine line has evolved further, in the persuit of achieving the best possible performance. The B2105 is now the the fifth generation of the B21 engine series, designed to secure power that gives an advantage in harsh off-road racing conditions, and pursues a driving feel that steadily demonstrates performance in any situation. By re-designing the cylinder liner and crankshaft, we have achieved smooth and linear power delivery from its predecessor, the B2104.

Furthermore, the cooling head has been made even lighter, lowering the car's centre of gravity to improve dirability in all conditions.

Features:

• New Combustion Chamber with black silicone gasket to reduce vibration and prevent dust from entering.

• New Liner/Piston 3-Transfer, for smoother, more linear power delivery

• New crankcase

• New crankcase cap with anti-friction plate

• Long stroke engine 16.8mm

• Wide and powerful power range

• New DLC treated crankshaft with two tungsten counterweights for smooth rotation and better balance.

• Ceramic rear bearing.

Specification:
Displacement： 3.49 cc / 0.213cu.in.
Bore: 16.27mm / 0.641 in.
Stroke: 16.80mm / 0.661 in.
Output :2.68 ps / 2.64 hp / 34,000 r.p.m.
practical rpm range: 4,000-42,000 r.p.m.
Engine Weight:348g / 12.28 oz.

The engine includes an OS P3 glowplug, 6mm & 6.5mm carburettor venturis and exhaust gasket protection cap set (3mm/16mm/18mm).