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gear ratio v tire size

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Old 11-23-2008, 11:23 PM
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Default gear ratio v tire size

does anyone know the formula to calculate how the tire size affects the gear ratio, reason i am asking is because i want to run a taller tire than stock

stock i believe is 26", and i want to run a 28" tire, i am on stock gears (M6, 3.42) and am trying to decide what gear ratio to go with...
Old 11-24-2008, 01:58 AM
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This should help you. Just plug in any and every gear/tire combo you are thinking about trying and see what meets your goals!

www.f-body.org/gears/
Old 11-24-2008, 04:27 AM
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Ok so where do you come up with the gear ratios for each gear?
Old 11-24-2008, 06:10 AM
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Go with a 3.73...that should put you around a 3.42 gear when you're on the 28" tires, I'm goning to be running a 27.6" tire with 4.11 which will put me around a 3.90 running gear. Hope this helps.
Old 12-04-2008, 08:26 PM
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I have been trying to find the acctual ratio's for each gear in the M6 (anyone know?) to calculate which gear I want to run. I'm looking at ordering an M9 setup later this month. 2000 TA BTW.
Old 12-05-2008, 06:37 AM
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M6 1st:2.66
2nd:1.78
3rd:1.30
4th:1.00
5th:0.79
6th:0.50

M5 1st:3.75
2nd:2.19
3rd:1.41
4th:1.00
5th:0.72

A4 1st:3.06
2nd:1.62
3rd:1.00
4th:0.69




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