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Thread: Backfiring and sooty plug

  1. #11
    Join Date
    Sep 2011
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    Had a mishap with #7 this week myself. Not blaming the truck intake as the root cause but I will not be using it on my 6.0 build .
    99 rcsb silverado...... boosted.

  2. #12
    Join Date
    Nov 2007
    Location
    Pittsburgh, PA
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    Quote Originally Posted by jansen View Post
    Had a mishap with #7 this week myself. Not blaming the truck intake as the root cause but I will not be using it on my 6.0 build .
    that isnt intake issue. that is coolant temp issue with too much timing and lean AFR....cylinder temps got hot, egts thru roof
    2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
    2002 Silverado - 427Lsx w/ Twin gt4202s
    2010 Silverado crewcab Z71 - 5.3litre w/ procharger
    2000 Wrangler - 5.3litre with some stance
    2014 Xsport- 3.5 Eco boost
    412 Motorsports

    it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference

  3. #13
    Join Date
    Sep 2011
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    That's why I said I was not blaming the truck intake as the root of the cause.
    99 rcsb silverado...... boosted.

  4. #14
    Join Date
    Mar 2011
    Location
    Gibbstown, NJ
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    685
    Quote Originally Posted by Beatdown Z View Post
    What kind of fuel were you running? Were you spraying Meth?

    I'm going to stick with the truck intake for now. Going to send the injectors out to be cleaned/flowed and go from there. Also going to try and get back to running at least 50% Ethanol fuel for added safety, along with the water/meth i'm spraying.

    93 Octane, with a sno perf kit. I only have 10% Ethanol here in Jersey. I don't really "blame" the intake, but changing it reaped me better results in my favor changing it out, and i had better luck with the setup after it was changed. Must have been a coincidence lol. I had an EGT gauge in my truck and it would scream until I started spraying it with meth, then the heat levels came down to a much happier level when I was beat the snot out of it.
    Last edited by MrHorsepowerLSx; 03-25-2013 at 05:21 PM.
    2001 ECSB Z-71: 7.0L LS7, Kook's LT's, True Duals, RPM Tune, F.A.S.T. Intake/TB, YANK TT3000, 4:10's, G80, AWD Swap, 160-Stat.....
    Slowest in South Jersey ..........SOLD :-(
    2012 GMC Sierra Z71 CC: 6 Speed, 3:73's, G80, Back up DD...........SOLD
    2000 RCSB Shitbox.......370LSx/Built 60e/4.56's,EATON Posi, CAI,3" SLP Exhaust, DD.......Build Thread http://www.ls1truck.com/forums/my-ga...ker-punch.html

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