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Thread: Help perfecting tune for more hp and 100 shot nitrous

  1. #1
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    Default Help perfecting tune for more hp and 100 shot nitrous

    I need a little help with tune I have car running good but i feel i am leaving some on table when on motor here is my tune and my data logging
    Attached Files Attached Files

  2. #2
    Junior Member Black_Tiger's Avatar
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    I see that you did not go full throttle the max that you was is 87% check your throttle cable and adjust it if needed or chek if the floor mat is under the gas paddle

    what is your intake set up ?

    Power Maker Dyno
    www.pm-dyno.com
    Middle East

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    I have the ls3 intake aftermarket ram air kit 90 mm throttle bottle

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    Joe (Moderator) joecar's Avatar
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    That tune is not suitable for nitrous nor for NA.

    Also, not mentioned in your other thread, spark timing has been bumped up but we don't know your cam overlap...

  5. #5
    Joe (Moderator) joecar's Avatar
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    Log file shows 30 degrees ignition advance at 6000+ rpm with significant load...

    and tune shows that your knock gain/rate/limit tables have been zeroed (i.e when knock occurs, you will get zero KR)...

    do not run nitrous with this tune.

  6. #6
    Joe (Moderator) joecar's Avatar
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    Is car a 2000 F-car...?

    What mods does engine/car have...?

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    Man I wonder why I never saw any KR, so I thought I could add timing I will take back down, He had it at 28, so basically I got robbed this tune is terrible

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    This is a 2000 t/a with a lq9 370 and ls3 topend 232/234 cam headers intake etc... stock crank forged pistons

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    Anymore suggestion sir, I really appreciate your help

  10. #10
    Lifetime Member picnic_george's Avatar
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    Quote Originally Posted by bigdawg6114 View Post
    Man I wonder why I never saw any KR, so I thought I could add timing I will take back down, He had it at 28, so basically I got robbed this tune is terrible
    You could put it on a dyno and see where it makes power, even without knock retard you'll hit a point that adding timing does nothing for hp and could even start losing it. You'd be surprised how little timing these engines need. You may not even need 28, most cars like 24-26. As far for 100 shot, you'd probably want to pull a few degrees out which might be dependant on what fuel/plugs you have in it.

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