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Plugs

This is a discussion on Plugs within the External Engine forums, part of the LSx Technical Help Section category; Whats the stock gap on the plugs? I'm about to get some NGK plugs don't know which ones to get ...

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    Plugs

    Whats the stock gap on the plugs? I'm about to get some NGK plugs don't know which ones to get yet, but some are .40 and some are .55, gettin MSD wires to go on them.

    Prolly going with the TR55 or TR6 just because the WS6 has the plugs and wires in a set for $75 but that gap is .60, I can always regap it myself but not sure which I should set it at.

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    The Red Reaper 98Z28importslayer's Avatar
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    Quote Originally Posted by Blackout01 View Post
    Whats the stock gap on the plugs? I'm about to get some NGK plugs don't know which ones to get yet, but some are .40 and some are .55, gettin MSD wires to go on them.

    Prolly going with the TR55 or TR6 just because the WS6 has the plugs and wires in a set for $75 but that gap is .60, I can always regap it myself but not sure which I should set it at.
    TR55's are more for non-nitrous application because there a hotter plug, well the TR6's are a colder plug and are perfect for nitrous. Inless your running nitrous get the TR55's and you should always gap EVERY plug you get yourself because there not always spot on.

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    Yup I ordered those with the MSD wires package from WS6Store, what gap should they be, they claim to come at .60 stock on the TR55 Should I do .55 or .40? or even as low as .35?

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    Member muteki's Avatar
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    I did a search on this when I was looking for plugs. From all the treads I have read, they are gaped at .55 for most of the guys here. I am going to put mine in this weekend at .55, Ill give you some feedback after its done.

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    Member muteki's Avatar
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    Ok we did the TR-55 swap today. Since I just bought the car and it was running rough, I wanted to make sure the plugs were good. It had Denso plugs in it, ran like crap. They were so brittle when we took them out 3 of them had cracked porcelan. Anyways, put in a new airfilter, cleaned the MAF, new fuel filter, oil, and the TR-55s gaped at .55. The car runs like brand new.

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    Member Z28LS1's Avatar
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    careful with the msd wires. They're good for performance, but i go through a pair of them every summer. My headers burn right through the boots.. I even had the wire heat wrap on them too.. If your not ok with replacing them, get a more flexible wire

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    red
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    whats the best plugs when running nitrous tr55 or tr6

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    Slow'er'Ass Mr. Luos's Avatar
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    TR55's with a .053" gap (on a stock or near stock motor).

    I run MSD wires. No problems at all.
    2008 Trailblazer SS
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    531.1 RWHP 481.3 FT/Pounds all motor.

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    red
    98 ls1 formula

    so tr55s are good to run with nos

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    Slow'er'Ass Mr. Luos's Avatar
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    Quote Originally Posted by ls1_formula98 View Post
    so tr55s are good to run with nos
    You want TR6's for nitrous apps.

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    do u know the gap

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    Member WS6ICK2K's Avatar
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    Quote Originally Posted by ls1_formula98 View Post
    so tr55s are good to run with nos
    no its the opposite, the tr6 are colder which means they are better for nitrous.

  13. #13
    Slow'er'Ass Mr. Luos's Avatar
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    Quote Originally Posted by ls1_formula98 View Post
    do u know the gap
    Probably want them tighter for a nitrous application.

    I am sure someone else will chime in.

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