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Old 12-08-2017, 11:21 AM
2bars 2bars is offline
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Join Date: May 2012
Location: Wickenburg, AZ
Cobra Make, Engine: Superformance, 427 FE
Posts: 197
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Quote:
Originally Posted by RockBit View Post
I agonized over the gearing decision when planning my build. 3.31 or 3.54? .82 or .64? I spread sheeted it to death and wound up choosing 3.54 and .64 as I drive it in town about 90% of the time. I never use 5th until on the highway, where it cruises at 70 mph/2000 rpm. There is about a 500 rpm drop between all gears except 4th to 5th, where the drop is about 1000 rpm. Since a Texas highway speed limits are 75 and everyone drives 80, this combination is perfect for me. If I had planned to race the car, I would have gone for the .82 OD.
I too went nuts over the calculators. Between this thread and the FE one, sounds like our engines are almost twins and so are the drive lines. Arizona highway speeds are 65 or 75 and most go 10 over. I appreciate your comments. Gives me a even better idea of what to expect.
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