Originally Posted by
Typeone
Brian is that 88/53 is what ur running in gt3 or 17.5? What motor are u running with that FD?
This week I was going to run gt3 with my 417 instead of my TB03. I was starting out a 3.57 and check lap tines and temps then gear up from 88x48 =3.57 work toward a 88x53=3.23 a couple a teeth at a time and see what the lap times and temps are.