Join Date: May 2003
Location: Ipswich, Queensland
What would be the best diff ratio for general driving and some drag racing work? I have a 94 EF Fairmont, six cylinder, with extractors, exhaust and a couple more mods soon to come (cam, computer mods) and its an auto. I have heard about 3.5 and 3.9 to 1 ratios going into E series cars, what cars does these two ratios originally come from (i think the 3.5 are in XR's)?
Thanks for your help
1965 XP Falcon sedan (soon to be a 250 crossflow and T5)
1986 XF Spac Sedan, EFI, T5, lowered, with a few more mods to come.