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Plug question...

This is a discussion on Plug question... within the External Engine forums, part of the LSx Technical Help Section category; Fellow Trans Am Buds..... What plugs do I need to order. I was told TR5's gapped at 32-35 by my ...

  1. #1
    Member goof4080's Avatar
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    Plug question...

    Fellow Trans Am Buds.....

    What plugs do I need to order.

    I was told TR5's gapped at 32-35 by my tuner

    they sell TR55's gapped at 60, would I want to gap the TR55's down to .035?

    or TR6's gapped at 35ish, but those seem to be for high power applications.

    My car is barely modded, CAI, Cat-back, tune. 98 LS1

    Help!
    Last edited by goof4080; 05-31-2010 at 09:39 AM.

  2. #2
    Senior Member bills98ta's Avatar
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    I was going to ask what for shot you were spraying ! I'm 14:1 with juice, and I gap at .035" - .040" with autolite 103's. I'd think you would be fine with the TR55's at .045 - .060...

  3. #3
    Moderator Cutlass's Avatar
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    Quote Originally Posted by bills98ta View Post
    I'd think you would be fine with the TR55's at .045 - .060...
    yep .035" is too small unless you're spraying nitrous

  4. #4
    Member bryceslu's Avatar
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    Get some iridiums and they are gapped at .040. Then you know your good because GM says so

  5. #5
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    i use my champion IRs at .060

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