poor man's type r???

[LS2ner]

Then use a b16/b18c5 head slightly milled or a thinner head gasket or a taller piston and have way more than 10.6:1...the GS-R head sucks, sure it's a higher compression but its smaller valves and does not breath as well.

But doesnt the p72 head have the flat edges on on the combustion chamber which reduced risk of detonation?

[speedminded]

But doesnt the p72 head have the flat edges on on the combustion chamber which reduced risk of detonation?

If the P72 combustion chamber is flatter and a few cc's smaller don't you think that would increase detonation?

As long as premium fuel is being used the chances of detonation on a stock GS-R/ITR is slim to none anyways.

[LS2ner]

If the P72 combustion chamber is flatter and a few cc's smaller don't you think that would increase detonation?

As long as premium fuel is being used the chances of detonation on a stock GS-R/ITR is slim to none anyways.

I think what i was thinking of is called "quench pads" maybe?

I know Mike (Vteckidd) said GSR heads were better for that reason, but im not sure. From what reading ive done, the GSR will make a lil better mid-range compared to the pr3's top end. Im not saying your wrong Speedminded, was just asking about the specific detail on the p72's.