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Thread: My EFI Live LMM wish list

  1. #61
    Lifetime Member IdahoRob's Avatar
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    I have customers with the 1054 and 1057. Never had a locking problem. Even the 1055 seems to work really well under big power.

    The 1056 is a good converter, but with twin power we ran into the problem you guys are having. Swapped those out for 1054's and problem went away.

    The 1058 and ATS converters seem to have this problem more than anything I've seen. My theory on the 5 disc ATS there is too much fluid in between all those clutches and it not being able to apply fast enough because of the slower fluid removal. The 1058 has been a PITA forever.
    2013 LML, 550hp with factory emissions, stock cp4 and compound turbos.
    2002 LBZ, 4x4 (Max'd Out) 6000lbs 9.36 @ 154 mph NHRDA Champion and Record holder
    1965 El Camino, duramax 9.6 @ 149MPH

    All EFI tuned by Adrenaline Truck Performance

  2. #62
    Senior Member camcojb's Avatar
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    Quote Originally Posted by IdahoRob View Post
    I have customers with the 1054 and 1057. Never had a locking problem. Even the 1055 seems to work really well under big power.

    The 1056 is a good converter, but with twin power we ran into the problem you guys are having. Swapped those out for 1054's and problem went away.

    The 1058 and ATS converters seem to have this problem more than anything I've seen. My theory on the 5 disc ATS there is too much fluid in between all those clutches and it not being able to apply fast enough because of the slower fluid removal. The 1058 has been a PITA forever.
    so it sounds like I may be needing a new converter................ bummer, but if it eliminates the lockup issues I'm good with that. Is the 1054 the safest bet for my combo, least amount of slippage? I would be fine with near stock stall, just need the triple disc to handle the power.

    Jody
    07.5 4X CC 2500HD, EFI Live, MBRP exhaust
    new updated website!

  3. #63
    Senior Member camcojb's Avatar
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    ok, Rob sent me Jerrys (OSUBeaver) tune to try, which is a different OS than either of the two I previously tried. It works, you can shut the pilot off in the fuel pressure table and still get commanded timing.

    Ross, it appears the timing issue is related to particular LMM OS's, at least one doesn't do it. You can get ahold of Rob to find out which one in case he doesn't want it posted on the board, but my 7103 OS and the 7083 OS both seem to limit timing with the pilot of via fuel pressure pulse controls.

    Thanks for all the help guys (especially you Jerry for having an OS that works!), it is MUCH appreciated.

    Jody
    07.5 4X CC 2500HD, EFI Live, MBRP exhaust
    new updated website!

  4. #64
    Lifetime Member IdahoRob's Avatar
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    Sooo.....hows it run now?
    2013 LML, 550hp with factory emissions, stock cp4 and compound turbos.
    2002 LBZ, 4x4 (Max'd Out) 6000lbs 9.36 @ 154 mph NHRDA Champion and Record holder
    1965 El Camino, duramax 9.6 @ 149MPH

    All EFI tuned by Adrenaline Truck Performance

  5. #65
    Senior Member camcojb's Avatar
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    Quote Originally Posted by IdahoRob View Post
    Sooo.....hows it run now?
    It runs good. I only did some rolling datalogs and the tsm tune had the taps reset and shift points lowered to stock to try, so it short-shifted which definitely hurt the momentum. I'll let you know when I have made some full datalog passes, but I'm positive it's going to be new bests as far as et.

    Jody
    07.5 4X CC 2500HD, EFI Live, MBRP exhaust
    new updated website!

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