i swapped a jdm dohc zc into my 89 gutted crx. ive got a coldair, apexi catback exaust, and bigger plug wires with ngk sparkplugs (no biggie there).
question is, ive heard that shaving the head 1.4mm will increase the compression to 10.6:1. is this true, and what kind of power gains am i looking at? thanks.
question is, ive heard that shaving the head 1.4mm will increase the compression to 10.6:1. is this true, and what kind of power gains am i looking at? thanks.