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“Sonic Nitro Engines proudly presents a new buggy competition engine. All components of the SB.21-5T have been made from the finest materials to ensure high durability and reliability. Equipped with a 5 ports sleeve and a CNC machined flat piston, the engine provides great power over the entire RPM range while having a very efficient fuel consumption which can be crucial in the finals. The 14mm turbo crankshaft is equipped with two high density weights to impSB.21-5T_1000.ziprove the overall balancing and filled with a silicone insert to reduce the inertia and improve the fuel flow. The special back plate, the optimized crankcase and the “knife edged” aerodynamic connecting rod help even more to reduce turbulence inside the engine. A special super lightweight cooling head ensures best heat dispersion to keep the engine temperature at a moderate level. High quality Swiss ball bearings, a dust protected front bearing, a modern composite valve carburetor and venturis in 6.5mm, 7.0mm and 8.0mm made of aluminium complete this new high competition engine.
Features:
- 5 port hard chromed sleeve
- CNC machined flat piston
- 14mm turbo crankshaft with silicon insert
- Aerodynamic "knife edged" connecting rod
- Turbo combustion chamber with cooling fin
- Lightweight cooling head for low C.G.
- 14mm high quality Swiss main bearing
- Dust protected front bearing
- Composite slide valve carburetor
- 6.5mm, 7.0mm and 8.0mm aluminum venturi
Technical data:
- Displacement: 3,49ccm
- Max power: 2,65 HP @ 33.500 U/min
- Bore: 16,26mm
- Stroke: 16,80mm
- Front bearing: 7x19x6mm
- Rear bearing: 14x25,4x6mm
- Glowplug: Sonic S5H turbo
- Weight: 340g
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