O.S. Speed R2104 1/8 Scale Engine

Specifications:
Bore: 
16.08mm (0.633" )
Carb Type: 
Slide valve
Crankshaft Threads: 
UNF 1/4-28
Crankshaft Type: 
Threaded
Cylinder Type: 
Nine port liner
Cylinders: 
Single
Displacement: 
3.49 cc (0.213 cu in)
Engine (Only) Weight: 
340g (11.99oz)
HP: 
2.8 ps / 2.76 hp at 35,000 RPM
Height: 
91.2mm (3.6"), total height
Length: 
94mm (3.7") backplate to of crankshaft
Plug Type: 
OS RP7 turbo, cold heat range
RPM Range: 
4,000 - 45,000
Recommended Fuel: 
10 - 30% nitro content, 20% recommended for break-in
Starter Type: 
Bump
Stroke: 
17.20mm (0.677" )