Quote:
Originally posted by mikiec
I'm running a t-5 with .62 5th. 3.27 rear gear. It is great for freeway cruising. After all, isn't this what 5th is for? Lower cruise RPM, increase fuel mileage. When I need to pass, it's no big deal to down shift to 4th.
Mike
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Mike-
Depending on the specs of your cam and the rear gear you are running, the .62 5th can drop you too far out of the engine's powerband to run efficiently- which I think is what Ron and ERA649 are referring to.
I have the .82 5th with a 3.31 rear and at 70 I think its turning about 2400, which is just pretty good. Even at that low rpm, the motor has enough torque that I can pass without a problem simply by pressing the gas pedal- no need to down shift. If I had the .62 5th, I think the motor would be lugging too much and I would have to down shift. But it really depends on your cam and rear gear ratio.