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Thread: Knock at 10 psi?

  1. #31
    casey23 Guest

    Plugs

    Quote Originally Posted by Jamest View Post
    TR6 gap at .029-.030.
    X5 !!! Change them ASAP

  2. #32
    Join Date
    Feb 2007
    Location
    Spring, Texas
    Posts
    1,739
    I just did. The plugs in the pics were the stock ones that came out. Didn't help any since I think my injectors may be maxed.

    2004 Silverado Crew Cab, forged iron 5.7, STS w/MP turbo, 10+ psi, FMIC, Tial 50mm BOV, Vic Jr, Snow performance meth, MTI Stealth cam .220/.220 .581/.581 115lsa, Comp chromoly pushrods, Yank TT3000 stall, LS1 Efans, 160 tstat, Trucool 40k trans cooler, 60# injectors, Walbro fuel pump, Patriot springs, Built 4l65E w/billet input & output shafts, Eaton posi, SD tuned...all installed by Klein North Automotive

  3. #33
    ff_jeff Guest
    If im not mistaken, our fuel system is not a return style. which has been said to be not as good as the previous return style. I think your starving for fuel on the top end. And Im guessing that the a/f gauge is not reading correctly. You said it does not knock at 8psi? So you could turn down the boost and it would not knock at all? Maybe your running more boost than you thought. I bet you need either a better pump, or injectors and pull some timing.
    Last edited by ff_jeff; 04-10-2008 at 08:51 PM.

  4. #34
    Join Date
    Feb 2007
    Location
    Spring, Texas
    Posts
    1,739
    My wideband may be off since it is knocking but showing low AFR's. My pump should be able to handle a lot more if I'm not mistaken. Injectors, however, may be the weak link. Hopefully, Allen can shed some light on what my IDC's were when I was geting a tune.

    2004 Silverado Crew Cab, forged iron 5.7, STS w/MP turbo, 10+ psi, FMIC, Tial 50mm BOV, Vic Jr, Snow performance meth, MTI Stealth cam .220/.220 .581/.581 115lsa, Comp chromoly pushrods, Yank TT3000 stall, LS1 Efans, 160 tstat, Trucool 40k trans cooler, 60# injectors, Walbro fuel pump, Patriot springs, Built 4l65E w/billet input & output shafts, Eaton posi, SD tuned...all installed by Klein North Automotive

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