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Thread: hitting a wall at 6k rpms 08 z71

  1. #1
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    hitting a wall at 6k rpms 08 z71

    I keep hitting wall when i reach 6000 rpms. i have my rev limiter set to 6600 can someone point me in the way i need to look to keep from hitting this limitor?

    thankstruckBin1.hpt

  2. #2
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    Not able to check out the tune right now as I do not have my laptop with me, but I would recommend that "all" of your rev limiters be checked... Even the oil temp and ECT temp ones. Quite a few tables just for the rev limits. There's even one that knocks your rev limit down if the engine is revving quicker than expected, so might want to zero that one out unless you want it for a safety.

    Sorry can't help more right now.
    2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
    2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80

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  3. #3
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    Could you give me a run down where all of these are? So I can double check

  4. #4
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    Attached pic from your tune. Looks like your startup modifiers table is a good place to start. Then your accel based is the one that kicks it down if accelerating too quickly...
    Attached Images Attached Images
    2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
    2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80

    ~Greg Huggins~
    Remote Tuning Available at gh[email protected]
    Mobile Tuning Available for North Georgia and WNC

  5. #5
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    You're most likely going to need to adjust your transmission settings as well.
    trans.JPG

  6. #6
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    truckbin2.hpt

    i did a little playing in those tables listed... I am still hitting a wall at 6000... can someone walk me through this... I have been playing with it for 2 weeks

  7. #7
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    Is it a rev limit or speed limit? I just went back and glanced at the pic I posted from your tune and it apears that you disabled all means of controlling rev limits... So one would think the problem would be in the trans cal?

    Does it sit there and bounce off of 6000? Does it just rev there and hold? Or is it just spitting and sputtering here and if you hold it, it will rev through? Don't do that long either by the way
    2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
    2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80

    ~Greg Huggins~
    Remote Tuning Available at gh[email protected]
    Mobile Tuning Available for North Georgia and WNC

  8. #8
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    It hits 6k and feels like the trans is slipping... until I let off...

  9. #9
    Senior Tuner SultanHassanMasTuning's Avatar
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    change start up modifier to say 6700rpm all table

    increase RPM cutoff to 6600


    also please attached data log
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