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#2 |
I'd rather be basketweaving
Join Date: Feb 2000
Location: Indianapolis
Posts: 2,551
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![]() the taller the tire, the lower (numerically) the gear ratio. Think about it, it's all about getting your engine RPMs up. If you had a small tire before, then went and put a taller one on, the taller one will be spinning slower than a small tire at the speed. A tire with half the circumference than another will need to spin half as much to cover the same distance.
A general rule of thumb is to subtract 0.1 from your numerical rear gear ratio for every 1" increase in tire diameter. So if you have 3.73's with a 23.5" tire, thats roughly equivalent to having a 3.48 gear with your 26's. The real question is, what the heck are you doing with 23.5" tires on the rear of a mustang? If you're concerned about it, just put in some 4.10's or 4.30's
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NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft |
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