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Thread: Lt1 4l60e 3.42 rear end SHIFT TABLES

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  1. #1
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    Lt1 4l60e 3.42 rear end SHIFT TABLES

    Does anybody have decent tables for 3.42 rear end setup?
    Are D-body towing package tables good enough for f-body?

  2. #2
    Super Moderator dave w's Avatar
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    BlueCat Transmission Table Software can be found on this link: https://www.camaro5.com/forums/showthread.php?t=548319

    The HP Tuner link to download BlueCat is dead but the HP Tuner Thread has useful information: https://forum.hptuners.com/showthrea...Table-Software

    BlueCat is useful for Tuning:
    Normal Mode Up/ Down Shift Points MPH vs. Gear vs. TPS%
    TCC Normal Mode Engage MPH vs. Gear vs. TPS%
    TCC Normal Mode Release MPH vs. Gear vs. TPS%

    LT1 Capture.jpg

  3. #3
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    Thnx a lot
    Im trying to compare Bluecat data with OEM
    Original table seems to be more agressive than Bluecat.
    What am doing wrong?
    Could you please make a picture with parameters for a stock f body.
    Any rear end.
    It should be like the same i think
    Last edited by yoheer; 09-22-2023 at 06:51 PM.

  4. #4
    Super Moderator dave w's Avatar
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    Quote Originally Posted by yoheer View Post
    Thnx a lot
    Im trying to compare Bluecat data with OEM
    Original table seems to be more agressive than Bluecat.
    What am doing wrong?
    Could you please make a picture with parameters for a stock f body.
    Any rear end.
    It should be like the same i think
    LT1 3.42 Capture _02.JPG

    LT1 3.42 Capture_01.jpg

  5. #5
    Super Moderator dave w's Avatar
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    Quote Originally Posted by yoheer View Post
    Does anybody have decent tables for 3.42 rear end setup?
    Are D-body towing package tables good enough for f-body?
    Link to gearhead-efi LT1 information with .bin files too: http://www.gearhead-efi.com/Fuel-Inj...rmation-EE-EEB

  6. #6
    I'm pretty new at this tuning game,have yet to burn my first chip. Maybe lower the shift points and turn down the line pressure a little at the lower TPS and MAP areas for smoother low throttle shifts. I wouldn't get too carried away with reducing line pressure,you don't want to burn you clutches. Maybe delay your TCC another .5sec in the same areas.

  7. #7
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    3.23 orig vs bluecat normal shift tables @100% throttle
    2nd - 36 vs 42
    3rd - 73 vs 80
    4th -126 vs 133
    Won't it stuck in a gear with a rev limiter even with 3.23 gears?

  8. #8
    The idea is to keep your shift points in the torque range of your cam. You will have to determine what the RPM's are going to drop down to when it shifts and tailor the shifts so that that you're about 200 RPM's into the beginning of the torque range. You will need wheel speed,final drive ratio and tranny ratios to determine that. It's all about tuning to what [I]you[I]have in your car.
    If you're banging the rev limiter before you reach the shift point then yes,it's not going to upshift until you back off the throttle.

  9. #9
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    Im just trying to say that tables generated for a stock car by bluecat differ from original tables.

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