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Thread: tire size makes RE ratio change how much?
          
   
   

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  1. #1
    Dgas56's Avatar
    Dgas56 is offline CHR Member Visit my Photo Gallery
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    Oct 2005
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    Car Year, Make, Model: between cars
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    tire size makes RE ratio change how much?

     



    3:89 Re w 26" tall tires, but they are too narrow. So I want to put on 275 60 15's which are 28' tall. Clearence on the car is not an issue there is plenty. given the added dia. I am sure rpm will decrease some. Which will not break my heart. Those 3:89's make the engine howl pretty good at 70 MPH (459 dyno'd w drivetrain load HP). But how much will the added 2" change it?
    Last edited by Dgas56; 08-30-2010 at 11:38 AM.
    Attended my first drag race in 1961 and hooked on cars ever since.

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