OS Engines has presented the new competition nitro engine OS Speed B21 ADAM DRAKE EDITION II realized with the collaboration of Adam Drake.
The engine has been updated with a new 16.4mm x 16.55mm crankshaft which improves the driving feeling making it more linear and powerful and a new carburetor compatible with 6.5mm and 7.0mm Venturi. Below the promotional video and the engine specifications.
Spec OS Speed B21 ADAM DRAKE EDITION II
- Type: Nitro 3.49cc
- Bore: 16.4mm
- Stroke: 16.55mm
- Output 2.65 ps / 2.61 hp / 34,000 R.P.M
- Practical rotation speed: 4,000-42,000 R.P.M
- Weight: 353 grams.