formula for mph with diff gear

stng87 · 03-05-2003, 07:56 PM

Just changed back down to the 355 gear and now I dont know how fast I am going again. Does anyone know the formula used to calculate this?
i know it involves rpm, tire height, final drive ratio

HiFlow5 0 · 03-05-2003, 09:03 PM

analyzer All the way at the bottom is where you'll find what your looking for.

stng87 · 03-05-2003, 10:32 PM

Quote:

Originally posted by HiFlow5 0
analyzer All the way at the bottom is where you'll find what your looking for.

thanks bud

03-05-2003, 07:56 PM	#1
stng87 Registered Member Join Date: Sep 2000 Location: southern california Posts: 329	formula for mph with diff gear Just changed back down to the 355 gear and now I dont know how fast I am going again. Does anyone know the formula used to calculate this? i know it involves rpm, tire height, final drive ratio __________________ 1987 black with t-tops. Cobra intake, 1.7 cobra crane rollers, gt40p's, bbk shorties, off road h-pipe, Holley adj. fuel pressure regulator, Tremec t-5z, 65mm TB, 4.10's, adj cable, 155lph fuel pump, Ram clutch kit, 3 row motorsport radiator, Chrome cobras17x9 front, 17x10.5 rear, Hurst shifter,Former AOD Semper Fi

03-05-2003, 09:03 PM	#2
HiFlow5 0 Registered Member Join Date: Mar 2000 Location: Springfield, Ma, usa Posts: 706	analyzer All the way at the bottom is where you'll find what your looking for. __________________ NewEngland Auto www.baystategearheads.com -91 Mustang Coupe, ex 4cyl (sold) -99 F150, 3" lift, 35" Procomps, Magnaflow exhaust

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