Sirio 21 BK Evo III STI

We first wrote about the Kanai edition Evo III STI engine from Sirio back in November when it was first shown to the public. Well the engine is due to be released at the end of February and we now know what changes have been made to the engine over the previous Kanai engine.

The EVO III line of engines feature a new crankcase to increase flow to the combustion chamber. Port timing and induction timing have been changed to increase torque and driveability. The result is an engine with tons of dirveable power and it’s easy to tune.

You can view some pictures and more details here.

Source: Kyosho America [kyoshoamerica.com]