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Thread: turbo spark plug gap

  1. #1
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    turbo spark plug gap

    what spark plugs and gap are u turbo guys running? we got TR55 on 35 to 40 gap. i think ive seen some of u run tighter gaps. We got a nice backfire earlier today at the track while cleaning off the tires and i think plugs have alot to do with it.


    4.8, TSP 220, 6L90 swap, 3400 Stall, 4.10s w/30" drag radial and T76 @ 16lbs.
    Best ET 11.54@114 w 1.52 60ft
    Raceweight 4905 lbs.

  2. #2
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    Tr6 for lower power gapped. 035

    BR7ef gapped to. 028-.030

  3. #3
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    .030-TR6 Here.
    --2013 CC Z71, Edelbrock charged, cam, long tubes, 4.5" Zone, 285/70/18 KM2s on Gear Big Block, Kenwood system, LineX, Retrax, Katskinz, NFab.
    --2012 Dmax CC Z71, Cognito UCAs, braces, Fox 2.0, LineX, Nfab, Retrax, Ranch Hand Front/Back, Custom Katskinz, Black Gear 18x9 wrapped in 285/70/18 Toyo MT.

  4. #4
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    Br7ef. Gapped 28
    Slowest in Oklahoma...

  5. #5
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    Tr6 gapped 28

  6. #6
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    .28 - .30

  7. #7
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    Quote Originally Posted by Quik View Post
    Tr6 for lower power gapped. 035

    BR7ef gapped to. 028-.030
    How far would you go with the 7's before switching to 8's?
    Big slow mud truck with a TUNE!!!!!!

  8. #8
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    Quote Originally Posted by Beatdown Z View Post
    How far would you go with the 7's before switching to 8's?
    probably 850 before swapping to 8s or if i was spraying on top

    i think i seen it on tech or was it bullet...general rule ppl were going by for power level you go off plug number 699 and less Tr6, 799-700 BR7EF, 899-800 8s

    could also ask the big hitters what they are running.....Lee, Mic, Allen, Kurt
    2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
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    2010 Silverado crewcab Z71 - 5.3litre w/ procharger
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    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

  9. #9
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    It's just a stock 5.3 with a T70 @ 7 pounds. So I'm thinking TR6 at 30 to 35 gap. Thanks guys.


    4.8, TSP 220, 6L90 swap, 3400 Stall, 4.10s w/30" drag radial and T76 @ 16lbs.
    Best ET 11.54@114 w 1.52 60ft
    Raceweight 4905 lbs.

  10. #10
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    Oct 2009
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    Odessa, TX
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    99
    tr-7 @ .28
    800+hp
    99 GMC - RCSB 408 w/98mm whistle... WSLS Racing...

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