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Thread: LML Speed Limiter Removal

  1. #1
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    Default LML Speed Limiter Removal

    Any update on when the speed limiter will be able to be removed on an LML. Have a customer with a 2013 wanting his gone.

  2. #2
    Lifetime Member GMPX's Avatar
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    The tables are there to do it now, but, we've been informed that you might get a dead pedal after you lift above whatever the stock limiter is set to. We've been away for a month so not much has happened, but we will look further in to the speed limiter next year.
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  3. #3
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    I maxed out all the speed limiter tables I could find, no dead pedal but the truck still limits itself at 98mph

  4. #4
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    Don't know if that could help, I changed/reduced the maximum speed to 100kph on my truck and that work ok. Change made to B2200,B2501,B2500,B2202. OP Sys 12645750, version 7.5.7 build 246 , 8.2.2 build 238

  5. #5
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    i too tried to remove the limiter and it was a no go on my dyno
    Calibrator @ The Roadster Shop
    www.roadstershop.com

  6. #6
    Lifetime Member GMPX's Avatar
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    It can be done, I know our beta guys stopped pestering us about it, that is a good sign
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  7. #7
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    thats good!!

    this guy wasn't needing it removed but on a few pulls we did hit a fuel cut at the same speed every time. He just wanted more mpg out of it and a a few more hp. I didnt even have to touch the fuel table (so his DIC would stay somewhat accurate) i just adjusted the tq limits timing and reduced the lambda a touch in the anti-smoke tables.
    Calibrator @ The Roadster Shop
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    Quote Originally Posted by computerjlt View Post
    thats good!!

    this guy wasn't needing it removed but on a few pulls we did hit a fuel cut at the same speed every time. He just wanted more mpg out of it and a a few more hp. I didnt even have to touch the fuel table (so his DIC would stay somewhat accurate) i just adjusted the tq limits timing and reduced the lambda a touch in the anti-smoke tables.
    I've seen this mentioned before...

    so when the fuel tables are modded the DIC accuracy goes away? is there anything you can do with this?

  9. #9
    Lifetime Member GMPX's Avatar
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    If you adjust the injection pulse time table I would think that would mess with the DIC accuracy, otherwise it should still calculate the fuel usage correctly if you are just altering the commanded torque tables.
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  10. #10
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    I guess I'll look at it some more. I need to learn tuning theory on these.

    What if you alter fuel pressure... Then the tq per pulse width will change...and screw everything up.. No?

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