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Thread: 5.3/8l90 shift points speed vs rpm

  1. #1
    Potential Tuner
    Join Date
    Oct 2019
    Location
    Mississippi
    Posts
    3

    5.3/8l90 shift points speed vs rpm

    Can someone plz explain to me in the trans tune under shift scheduling how to raise the shift points. Do you have to raise both the shift rpm and the shift speed ? Do these work together? If so how do I calculate the shift speed to go with the rpm ?

  2. #2
    Tuner
    Join Date
    Aug 2019
    Location
    Cleveland, TN
    Posts
    76
    find and download bluecat trans calculator. will help a bunch