Turbeau
01-17-2017, 07:41 PM
Hello all you R experts,
I have been adding upgrades to R and would like some input. I just installed a cool head after checking the squish both before and after installation. The squish is above .058. I think the cool head that I got is older because it dose not have o-ring grooves machined into the head. I am running a CR head gasket with a 22cc dome. I checked compression after installation. The gauge was at 200 psi. My engine builder recommends that I run 110 octane race fuel. What compression have you seen with a stock head using a CR head gasket? What is the highest 250r compression that you have seen?
Thanks.
I have been adding upgrades to R and would like some input. I just installed a cool head after checking the squish both before and after installation. The squish is above .058. I think the cool head that I got is older because it dose not have o-ring grooves machined into the head. I am running a CR head gasket with a 22cc dome. I checked compression after installation. The gauge was at 200 psi. My engine builder recommends that I run 110 octane race fuel. What compression have you seen with a stock head using a CR head gasket? What is the highest 250r compression that you have seen?
Thanks.