Originally Posted by Maxwell Power
I think the picture shows very well that the chambers are opened up dramatically. There is always a little 'overhang' as you called it. There has to be quench in a daily driven car in order for it to even idle properly. You can see that we opened it up a ton around the valves and on the side of the chamber. We opened it up to the same diameter as a normal 2.5L combustion chamber.
thanks for the answer. and what compression ratio do you end up with? do you shoot for WRX CR or STI (ej257) CR or something else....