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Out-of-Stock
OS Speed R21GT engine Competition
O.S. Speed R21GT engine for the 1/8th GT on-road classes. Designed with the forthcoming 1/8th GT IFMAR World Championship in mind, the engine builds on the proven R2101 crankcase which was refined as was the 5+3 ports liner and piston to meet current IFMAR rules.
Tech specifications:
- Displacement: 3.49 cc
- Bore: 16.08mm
- Stroke: 17.20mm
- Intake ports: 5-port
- Exhaust port: 3-port
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Delivery policy.
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The engine is rounded out by the newly designed 22E (B) GT carburettor and it comes with a 7mm venturi insert, again to meet IFMAR requirements. The newly designed crankcase features a DLC coating for wear while the updated cooling head design ensures optimised heat dissipation under the large GT body shells.
OS1CC00
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