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Plugs and gap....

This is a discussion on Plugs and gap.... within the Internal Engine forums, part of the LSx Technical Help Section category; LQ9 402ci 11:1 compression Good sized cam It is running overly rich right now...enough to continue to foul plugs. Should ...

  1. #1
    Slow'er'Ass Mr. Luos's Avatar
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    Red Tint Jewelcoat
    2008 Trailblazer SS

    Plugs and gap....

    LQ9 402ci
    11:1 compression
    Good sized cam

    It is running overly rich right now...enough to continue to foul plugs. Should be having this taken care of early this week. NGK TR55's at .048" are what I was running.
    I am having a problem figuring out the best plugs and best gap.
    What are guys successfully running??
    What to avoid?
    2008 Trailblazer SS
    Yank PTB3600, Kooks 1 7/8" LT's, 4" intake, E-fans, Magnaflow, Sonnax kit, tranny cooler, tune.
    Lowered, HID's, tinted.

    1999 Pontiac Trans Am WS.6 #1747 SOLD
    531.1 RWHP 481.3 FT/Pounds all motor.

  2. #2
    Slow'er'Ass Mr. Luos's Avatar
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    So no one has a stroker?

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    93 Notchback

    i would close the gap to .030.

  4. #4
    Slow'er'Ass Mr. Luos's Avatar
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    Quote Originally Posted by SoldMySS4a5.0
    i would close the gap to .030.
    Could you explain why?
    That seems WAY small.

  5. #5
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    93 Notchback

    tighter fire, less chance of fouling with the excess gas
    Sold- 2001 SS 11.87 @120.5 Mph 465 rwhp 613 ft lbs of tq (gas).NOW: 93 5.0 Notchback, 347 stroker daily driver with A/C and P/S. Lentech Tranny 3000 stall, MT Drag radials. 11.91@113 on motor.-10.90's @ 123(1.51 60'), on a little 75 dry shot. 345 rwhp(motor)- 426 rwhp on gas.

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