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xp cam tuning

This is a discussion on xp cam tuning within the 3.8L V6 Supercharged (L67)(L32) forums, part of the Engine category; I was wondering what you guys do for start up idle. I know its a choppy start up with this ...

  1. #1
    club of used to own a gp 99prixgt's Avatar
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    Default xp cam tuning

    I was wondering what you guys do for start up idle. I know its a choppy start up with this cam but if there is any way i can smooth it out a little bit, when its cold the car almost wants to stall and a/f reads out at about 16.0, then gets slightly richer around 15.5. I have the idle set at 1100, then smooths out at about 850-900. I have some more work to do on the a/f but when its warm and i'm in gear at a stop light or just cuising with little to no throttle a/f is around 14.7-15.0

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    Moderator BillBoost37's Avatar
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    Default Re: xp cam tuning

    PUll the P0300 code, then bump idle about 100rpms. That's all I do to start it up.


    If Dave feels 60% throttle is 100%, what does he tell his wife.

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    Totally Banned, bro. blueguy's Avatar
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    Default Re: xp cam tuning

    Man up...set the idle at 375.

    Just saying.

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    The mod from over yonder TheOtherNick's Avatar
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    Default Re: xp cam tuning

    It should not be that rough for ya at idle mine is set to 1100 cold and dont have that much of an issue. Sounds like you need to dial in the fuel trims at idle so its not trying to adjust.
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