This cold weather is giving me some trouble, noticed pinging earlier, been out and stuffed in some octane boost, hope that will sort it, first time I've tried it.
My track tyres were showing 18 psi after 5 kms from cold. So put them up to 36 psi, but might lower them again on the track. What kind of psi are most people running with 225/50/17s ?
About to take out the stero, shed a few kgs. Easier than going on a diet.
See you there ! can't wait !
Julian GTS-t