Results 1 to 6 of 6

Thread: 4l80e soft shift with a hd2 transgo shift kit

  1. 05-07-2022 #1
    pro439
    pro439 is offline
    Potential Tuner
    Join Date
    Apr 2016
    Posts
    3

    4l80e soft shift with a hd2 transgo shift kit

    I?ve done 2 different transmission?s and have the same issue 2-3 doesn?t shift hard. I have the separator plate drilled for drag race 1-2 and 3-4 are like a rock but 2-3 in both transmissions are soft. I have the clutch packs w/o the wave/spring plate and the correct gap between the pressure plate and the pack. I have checked the psi and it runs on the higher side of the range that the book gives. I did not change the band on either transmission. Not sure what I need to do to get it to shift harder
    Reply With Quote Reply With Quote
  2. 05-07-2022 #2
    RDF1
    RDF1 is offline
    Advanced Tuner
    Join Date
    Dec 2019
    Location
    MS
    Posts
    568
    Getting a 4l80E to have a Firm 2-3 can be tricky sometimes.
    What torque converter do you run in them?
    Reply With Quote Reply With Quote
  3. 05-07-2022 #3
    pro439
    pro439 is offline
    Potential Tuner
    Join Date
    Apr 2016
    Posts
    3
    It has a Kevlar clutch stock stall and diameter. No programming for the transmission. I didn?t think it would be a programming issue. I don?t have debris in the pan the oil is clean
    Reply With Quote Reply With Quote
  4. 05-08-2022 #4
    Shrek
    Shrek is offline
    Advanced Tuner Shrek's Avatar
    Join Date
    Nov 2011
    Posts
    753
    Quote Originally Posted by pro439 View Post
    It has a Kevlar clutch stock stall and diameter. No programming for the transmission. I didn?t think it would be a programming issue. I don?t have debris in the pan the oil is clean

    So, you are running the OEM stock transmission calibration - while also using many aftermarket hard parts - and wondering why it does not magically shift the way you would like it to ?

    One of the best areas, for people new to tuning to begin, is with changes to the transmission calibration. With a 4-speed automatic, a small number of changes can greatly improve the "seat-of-the-pants" shift feel - often dramatically changing the overall driving experience.

    Tuning the transmission calibration is required to maximize the benefits of your hard parts upgrade.
    Reply With Quote Reply With Quote
  5. 05-08-2022 #5
    pro439
    pro439 is offline
    Potential Tuner
    Join Date
    Apr 2016
    Posts
    3
    So you can?t do it alone with hard parts? I don?t have anything to tweak the program and have never done any programming. I wasn?t sure if I had missed something in the transmission. What would you use to program? I?ve done programming on big trucks-tweaking. I thought I missed something that I?m not aware of. I appreciate your responses
    Last edited by pro439; 05-08-2022 at 08:05 PM.
    Reply With Quote Reply With Quote
  6. 05-10-2022 #6
    2xLS1
    2xLS1 is offline
    Senior Tuner
    Join Date
    Jun 2004
    Location
    405
    Posts
    2,314
    Quote Originally Posted by pro439 View Post
    So you can?t do it alone with hard parts? I don?t have anything to tweak the program and have never done any programming. I wasn?t sure if I had missed something in the transmission. What would you use to program? I?ve done programming on big trucks-tweaking. I thought I missed something that I?m not aware of. I appreciate your responses
    Well you are on HP Tuners forum. How about HP Tuners.
    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »