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Thread: adjusting allison shift

  1. #1
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    Default adjusting allison shift

    Just wondering if their would be a way to make it shift a little harder on the up shift thanks.

  2. #2
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    Alli 6 speeds.

    shift timing will quicken the shift effectively making it shift harder.

    D5100-D5119
    D5080 - D5099

    be careful and think things through before you go messing with this stuff bad thing happen really quick if you don't know what you are doing.

    D5120-5193 TAP presets
    highly recommended not to be messes with unless you are a tranny builder.
    '07 TBSS, LS2, T42, 3SS, Black on Black on Black, Pretty much stock at the moment. EFILive will fix that

    '06 LBZ/Allison 6speed, EC, LB, 1LT, Leather
    Current Mods: EFI Live/ PTO High Idle Mod/ Factory Exhaust Brake / BD Full Bore/ TransGo Jr./ TTS Twin Lift Pumps/ MBRP 4" turbo back/ Custom air box mod/ BullyDog Outlook Monitor

    465hp/1008tq---7/25/09---Dyno Day Fast Specialties Tuning by ME

  3. #3
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    wont the shit speed relearn???

    Why do you want it to shift harder? I would think speeding the shift up will only cause a tie up, which you will get a pretty firm bang from that I guess
    12 Second LMM

  4. #4
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    Quote Originally Posted by MMLMM View Post
    wont the shit speed relearn???

    Why do you want it to shift harder? I would think speeding the shift up will only cause a tie up, which you will get a pretty firm bang from that I guess
    If you set base desired shift times D5080 - D5099 I can't see why it would relearn to anything other than the base desired shift times.
    '07 TBSS, LS2, T42, 3SS, Black on Black on Black, Pretty much stock at the moment. EFILive will fix that

    '06 LBZ/Allison 6speed, EC, LB, 1LT, Leather
    Current Mods: EFI Live/ PTO High Idle Mod/ Factory Exhaust Brake / BD Full Bore/ TransGo Jr./ TTS Twin Lift Pumps/ MBRP 4" turbo back/ Custom air box mod/ BullyDog Outlook Monitor

    465hp/1008tq---7/25/09---Dyno Day Fast Specialties Tuning by ME

  5. #5
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    I checked the shift timimg and was told not to go below .2 seconds but looking at the setting it goes from 0% tps to 37.5% in the positive (0 ms at 0% than goes up to 90 ms and back to 0 ms by 37.5% tps) than from 43.8% tps to 100% it goes into the negative reading eg: 43.8% -50ms and by 100% it's at -200 ms. So alot of the readings are below .2sec(200ms) and don't know where to go from here.

  6. #6
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    ive been told by many to not mess with the shift timing unless u wanna pick up parts on the pavement... idk i adjusted mine a hair but went back stock after talking to a few tranny people but i been thinking about reseting the trans to shift for like hard acceleration and turn adaptive learning off so it will shift by what it was designed to shift at under hard accel... idk if that makes sense but its a thought thats been crossing my mind the past 2 days havent looked into it yet... anyone have any insight on that plz share :-) thx
    2006 Chevy Ext Cab SB 2500 LBZ 4x4 EFI LIVE w/ Turbo brake
    5" stacks egr blocked no kitty 285/70/17 nitto terra grapplers fass pump custom air intake tru trac diff in rear water/meth inj. race fuel valve


    2001 Chevy Std cab 12' ultility bed with pipe rack 3500 2wd LB7 with 6 spd manual custom exhaust system and ppe boost increase valve


    Duramax ROCKS

  7. #7
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    Quote Originally Posted by dezzi View Post
    I checked the shift timimg and was told not to go below .2 seconds but looking at the setting it goes from 0% tps to 37.5% in the positive (0 ms at 0% than goes up to 90 ms and back to 0 ms by 37.5% tps) than from 43.8% tps to 100% it goes into the negative reading eg: 43.8% -50ms and by 100% it's at -200 ms. So alot of the readings are below .2sec(200ms) and don't know where to go from here.
    shift timing is adjusted in diffrent tables not just one for example say 3-4 at 100% is at -200ms well if u go to the 3-4 table...not the base shift table ... it may say +300ms under 100% throttle... that help any???
    2006 Chevy Ext Cab SB 2500 LBZ 4x4 EFI LIVE w/ Turbo brake
    5" stacks egr blocked no kitty 285/70/17 nitto terra grapplers fass pump custom air intake tru trac diff in rear water/meth inj. race fuel valve


    2001 Chevy Std cab 12' ultility bed with pipe rack 3500 2wd LB7 with 6 spd manual custom exhaust system and ppe boost increase valve


    Duramax ROCKS

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