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Thread: Really need some tuning help with a spike while decelerating

  1. 04-28-2017, 01:40 PM #11
    Soopdup
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    I was logging dynamic airflow and there are correlated spikes between that and my wideband. So I think I'm narrowing it down to something with the maf. I'm leaning towards a turbulence in the maf because there is no honey comb. I ordered one so we shall see.
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  2. 04-28-2017, 01:44 PM #12
    Soopdup
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    Quote Originally Posted by norm8332 View Post
    I have the LS9 cam and my Maf is smooth. Maybe its the missing honeycomb.
    Is that a stock MAF or card style MAF?
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  3. 04-28-2017, 03:26 PM #13
    norm8332
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    I'm using the stock MAF.
    Last edited by norm8332; 04-28-2017 at 03:33 PM.
    08 G8 GT: MagnaCharger TVS MP1900 10psi, LS9 cam, 72# injectors, Roto-Fab CAI, SLP Headers, Corsa Catback, etc.
    My Garage
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  4. 04-29-2017, 05:47 PM #14
    Soopdup
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    Quote Originally Posted by norm8332 View Post
    I'm using the stock MAF.


    Ahhh. Yeah I think the problem is the LS7 maf in the big 4" tube is causing turbulent air when the throttle is closed.
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