Thread: Stage 3 cam cold start tuning HPT

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  1. #1 Stage 3 cam cold start tuning HPT 
    GrandPrix Junkie CrazyGuy03's Avatar
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    Anyone have any success in this area ?
    i would like the cold start to stop the ridiculous surging and hunting.
    The s1x cam in my l67 would just have a higher , but smoother idle at cold start then settle into a lope

    the is3 cam in the l26 gets retarded before settling in.
    Any suggestions ?
    2003 Buick Regal GSX lots of mods - click here to see latest build - http://www.grandprixforums.net/threa...ld-for-the-gsx

    *For Reference - Does not have a Zack Howard Cam - It's an Intense Stage 3 - Thank You*
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  2. #2 Re: Stage 3 cam cold start tuning HPT 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Have you tried messing with the Open loop AFR tables and closed loop function. Like have it stay in open loop longer or bringing closed loop sooner. Adjusting the target afr and timing in the idle area's??

    There just really isn't a whole lot we can do it seems because we can't control the IAC and any other throttle body functions.

    SMGPFC Member #1
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  3. #3 Re: Stage 3 cam cold start tuning HPT 
    GrandPrix Junkie CrazyGuy03's Avatar
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    Thanks for the suggestions
    Well from what I gathered , was to run it rich and decrease timing and then I heard the exact opposite as well

    curious to see if anyone else runs the is3 cam and hopefully they also use HPT
    2003 Buick Regal GSX lots of mods - click here to see latest build - http://www.grandprixforums.net/threa...ld-for-the-gsx

    *For Reference - Does not have a Zack Howard Cam - It's an Intense Stage 3 - Thank You*
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  4. #4 Re: Stage 3 cam cold start tuning HPT 
    Turbo is the way to go. BillBoost37's Avatar
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    DH always said to dump a ton of timing at it in idle and that would smooth it. I never had the chance to try it though.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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