Racingjunk Forums - View Single Post - How much will this change RPM?

11-02-2010, 03:17 PM

#5

BEAST477

Senior Member

RACING JUNKIE

Join Date: Feb 2007

Location: Michigan

Posts: 1,900

Re: 75 RPM per inch of roll out change, brother

Quote:

Originally Posted by TopspeedLowet

Mike, if the two tires at pressure are 3" different in circumference as the diameter implies, then there will be an additional 230 RPM at the stripe with the shorter tires. Measure the actual circumference of your old tire and the new one to verify the roll out is 3" shorter as guessed.
Bruce

Thanks Bruce, that's what I was looking for.

I should've put in my thread that at the same mph how many more RPM's will it turn. Thanks guys.

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