BIG BLOCK FORD
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gear ratios.

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gear ratios. Empty gear ratios.

Post  stanger68 May 11th 2020, 8:54 pm

I am using hales formula for optimum gear ratio calculation in a 1/4 mile. Anybody have an easy way to figure an 1/8 mile rear gear? based on HP, weight, rpm, tire size?

I don't have scales so I'm going off what the previous owner of the car says it weighs and adding some for the big block. The 1/4 mile formula says I need 4.32

stanger68

Posts : 359
Join date : 2015-12-05
Location : Birmingham, Al

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