Sonic Combo Set ProStock.12 EFRA 2679 Set

Sonic Combo Set ProStock.12 EFRA 2679 Set

The all new Sonic ProStock.12 touring car 2.11ccm on-road engine is produced especially for club and regional racers that are looking for a competition engine for a good price.

Additionally the ProStock.12 is easy to adjust and to handle which helps the racer focus on driving and setting up the car.
Equipped with a 3 port sleeve and a CNC machined flat piston the engine provides great power over the entire RPM range while having a very efficient fuel consumption. The optimized crankcase and the knife edged aerodynamic connecting rod help to reduce turbulence inside the engine.

A special turbo combustion chamber with a cooling fin and the lightweight cooling head ensure best heat dispersion to keep the engine temperature at a moderate level. High quality ball bearings and a modern composite valve carburetor complete this new competition engine.