Pro Boost Ratio

Discussion in 'PSI Superchargers Tech Questions' started by hines, Dec 16, 2015.

  1. hines

    hines Member

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    Just wondering what first second and rear gear most guys are running these days?
     
    #1
    hines, Dec 16, 2015
  2. Will Hanna

    Will Hanna We put the 'inside' in Top Alcohol
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    I have heard everything from 1.80's to 2.20's in NHRA legal Pro Mod with a 4.56 rear so you can do the math with a 5.0 rear and two speed for the 1/8
     
    #2
    Will Hanna, Dec 16, 2015
  3. hines

    hines Member

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    Is a two speed better than a three speed for 1/8th?
     
    #3
    hines, Dec 18, 2015

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