Nuevo Sonic V.21LS

NOTA: Si os preguntais las diferencias entre el SONIC y el PICCO, os podemos decir que son motores muy similares, precticamente iguales. Tan solo la culata y la tapa trasera son diferentes, pero el resto son iguales. Se trata de dos lineas de motores que evolucionan en paralelo y por lo tanto la calidad en el SONIC esta mas que asegurada.

Sonic Nitro Engines has released the latest version of the successful V.21 engine. After extensive tests in cooperation with engine-guru Edoardo Picco the Sonic V.21LS "long-stroke" features the latest long stroke design offering more low and mid range power while keeping the fuel economy on a very good level. Equipped with a 7+2 sleeve with "teardrop" work and a lightened CNC machined piston made of high percentage silicone alloy the V.21LS sports a balanced lightweight 14mm turbo crankshaft with silicone insert to lower the rotating mass and reduce inner turbulences while the optimized backplate improves the fuel flow further more. A special finned turbo combustion chamber and the super light-weight cooling head ensure best heat dispersion to keep the engine temperature at a moderate level. High quality Swiss ball bearings, a modern composite valve carburettor and two aluminium venturies (8mm + 9mm) make this engine a perfect choice for competetive racers.

Features: 

- 7 ports + 2 bypass hard chromed liner
- CNC machined billet piston
- Balanced 14mm turbo crankshaft with silicone insert
- Aerodynamic “knife edged” connecting rod

- Special backplate for improved fuel flow
- Turbo combustion chamber with cooling fins
- 14mm Swiss quality main bearing

- Lightweight cooling head for low center of gravity
- Composite slide carburetor
- 8.0mm and 9.0mm aluminium venturi inserts

Technical data: 

- Displacement: 3,49ccm

- Max power: 2,85 @ 37500 U/min

- Bore: 16,03mm

- Stroke: 17,30mm

- Front bearing: 7x19x6mm

- Rear bearing: 14x25,4x6mm

- Glowplug: Sonic S7C turbo plug

- Weight: 311g

Best regards

Patrick