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O.S. Speed B2102 Competition Engine
O.S. Speed B2102 Competition Engine

O.S. Speed B2102 Competition Engine

Your Price:$444.48
Retail Price:$499.99
You Save:$55.51(11%)
Out of Stock.
Part Number:1A300

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Low cylinder head reduces the buggy's center of gravity by 0.67"
(17mm) for better stability during aggressive driving
Newly designed 22C slide valve carburetor for better fuel economy
Tungsten weighted crankshaft with diamond-like coating and silicon
Bypass of crankcase is modified for better performance


O.S. Engines Speed B2102 Engine with P3 Turbo Glow Plug
6.5mm Carburetor Reducer in Red
Exhaust Seal Ring
One each 3mm, 16mm and 18mm Dust Caps
Instruction Manual


Exhaust System such as the O.S. Engines T2090SC Tuned Pipe
Fuel: 10-30% nitro content, 20% recommended for break-in
Air filter, glow starter and track equipment


Displacement: 0.211 cu (3.46 cc)
Bore: 0.646 in (16.40 mm)
Stroke: 0.646 in (16.40 mm)
Practical RPM: 4,000-42,000
Power Output: 2.65 PS/2.61 hp @ 34,000 rpm
Crankshaft Size: UNF1/4-28
Distance/Mounting Hole Centers Same Side: 0.83" (21mm)
Distance/Mounting Hole Centers Opposite Side: 1.45" (37mm)
Width of Crankcase below Mounting Tabs: 1.2" (31.6mm)
Width of Mounting Tabs: 1.8" (45mm)
Height/Mounting Tab to top of Cylinder Head: 2.6" (65.9mm)
Height/Mounting Tab to center of Exhaust Outlet: 1.1" (28mm)
Height Crankcase Bottom to top of Cylinder Head: 3.2" (81.5mm)
Length of Crankshaft end to Front Bearing: 1.2" (29.5mm)
Length of Crankshaft end to Backplate: 3.7" (94mm)
Length of Crankshaft end to Center of Crankcase: 2.9" (73.5mm)

Carburetor Settings;
(Carburetor is preset from factory and should only require very
small adjustments)
Needle Valve: 3 turns open from fully closed
Mixture Control Valve: One turn screwed in from flush position with
carb body
Metering Needle: 0.3-0.4mm protruding from flush position with carb
Throttle Stop Screw: Approximately 0.5mm from carb body when viewed
from above

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