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Thread: Hello Please help?????
          
   
   

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  1. #1
    pat mccarthy's Avatar
    pat mccarthy is offline CHR Member/Contributor Visit my Photo Gallery
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    well how tall is the rear tire ? and how hi do you want to rpm the engine?

  2. #2
    Speed Freak is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: 1979 Pontiac Firebird Trans Am
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    28 or mabey 29 I dont know have not disided yet what is a good size?

  3. #3
    HotRodKush is offline CHR Member Visit my Photo Gallery
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    With a 4.56 rear, 1:1 trans ratio (high gear in a powerglide), and 28" tires, you'll max out at 110mph at 6000rpm, if your motor can rev that high.

    With 29" tires, you'll max out at 114mph at 6000rpm

  4. #4
    BigRed's Avatar
    BigRed is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: '97 Silverado, '87 944, '94 GMC Sierra
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    Quote Originally Posted by HotRodKush
    With a 4.56 rear, 1:1 trans ratio (high gear in a powerglide), and 28" tires, you'll max out at 110mph at 6000rpm, if your motor can rev that high.

    With 29" tires, you'll max out at 114mph at 6000rpm
    So get some 44" tires...mudbogger/drag racer!!


    I'm pretty much worthless...sorry.
    Wes...aka "BigRed"

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