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08-30-2010 11:50 AM #1
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- Car Year, Make, Model: '33 HiBoy Coupe, '32 HiBoy Roadster
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Skids typed quicker than me
With your 3.89's and no OD (1:1 final tranny output) you'll turn 3519rpm at 70mph with 26" tires, and 3268rpm with 28" tires which is indeed exactly 13/14th's change.
Roger
Enjoy the little things in life, and you may look back one day and realize that they were really the BIG things.
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08-30-2010 07:51 PM #2
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Here's a great little calculator to figure it out..http://www.ringpinion.com/Calc_RPM.aspx
Plug in all the different combos you want and see how it changes your rpms...."It is not much good thinking of a thing unless you think it out." - H.G. Wells
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That's going to be nice, like the color. .
Stude M5 build