Quote:
Originally Posted by JSeery
There are some rules of thumb for gear 1st gear to rear axle ratios (there are other factors, these are just starting guidelines).
Drag Racing: 10 to 12
Street Performance: 8 to 9.5
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JSeery…..You are the ONLY other person on this forum (beside myself) that I've seen use this quick and dirty formula to get you in the ballpark when putting a driveline together. It's not a perfect solution, but it will at least give you a starting point to prevent the assembly of a combination that just doesn't "work". As an extreme example, for many years now we've owned a '65 Corvette coupe, factory equipped with the 365 HP 327, 2.20 1st gear Muncie, along with a 3.55 Posi rear. That 2.20 X 3.55 equals a very low (numerical) 7.81. Believe me, that thing has no problem leaving a light and is such a pleasure going thru the close ratio gears. DD