Originally Posted by Mike Rainbird
I wouldn't run high compression on a car that is going to be regularly maxed out or see track days UNLESS you have the budget to run suitable fuel at these events.
What you classing as high comp Mike?
everytime i see a cossie spec its always got low comp, between 6.8 and 7.*:1 whereas the jap lads all seem to run around 8.5:1 generally.
What difference does it make if theyre both ran on say Shell V-Power? How come it works on Evo's etc but not on cossies, even though they both run decent boost levels?
I understand the theory behind detonation but the 8.5:1 compression doesnt seem to cause any problems over on the darkside, but scares the shit out of the ford boys
