Ford Appreciation Society
Join Date: Jul 2002
Location: ACT and loving it!
Re: Diff ratio for good take off
I always get it the wrong way around so feel free to correct me if I'm wrong- Higher is lower numerically and is better for the highway (eg 2.75, 3.00)
Acceleration wise, (eg 3.45, 3.77 or 4.11) give you better punch off the line, but use more fuel, as the engine is doing more revs at hwy speed.
The wheels and tyres you run also have a bearing on the overall rolling diameter, which also have an impact on your final ratio.
'67 Mustang V8 4sp... what fun to drive!