Josh wrote:
> is there any difference between 3rd with overdrive
> and fourth without it?
In my car at a constant 4000 rpm, the numbers are:
Speed in third: 57 mph
Speed in third OD: 72 mph
Speed in fourth: 80 mph
Speed in fourth OD: 100 mph
Looked at another way, at a constant 70 mph:
RPM in third 4900
RPM in third OD: 3900
RPM in fourth: 3500
RPM in fourth OD: 2800
The numbers will vary depending on your tire diameter and rear end ratio,
but the relationship will stay the same.
Jim Hill
Madison WI
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