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Thread: strange MAF Htz

  1. #1
    Join Date
    Oct 2014
    Location
    Berkeley, CA 94704
    Posts
    10

    Default strange MAF Htz

    anyone got a reason for the MAf Htz to raise below 1200 rpm with HKS 280 cams?
    say 1500 rpm its about 50-60 htz range, as i try to let it idle down i notice the turbo actually starts to pick up speed then the Htz shoots up past 150-200 and it dumps fuel in and dies. , no boost leaks, no leaks anywhere. timing is set at 5* at 1500 with the wire grounded because thats the only place i can keep it running, average idle A/F is between 14.5 and 15.0 before it floods and dies. 1g car,UNhacked 2g MAF, 550 injectors,280 cams, runs awsome other than below 1500 rpm it wants to drown itself.
    tried a different MAF with no luck.
    maybe the valve overlap is letting air rush through, thats my only guess by this point.

  2. #2
    Join Date
    Aug 2010
    Location
    CAMPOBELLO S.C.
    Posts
    7

    Default

    Did you check your mechanical timing?
    Turbo fanatic. Engine Builder, mechanic, and tuner.
    "Lay not up for yourselves treasures upon earth, where moth and rust doth corrupt, and where thieves break through and steal:"

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