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Another NGK TR-55 Spark Plug Gap Question

This is a discussion on Another NGK TR-55 Spark Plug Gap Question within the External Engine forums, part of the LSx Technical Help Section category; I have NGK TR-55 V-Power Spark plugs for my 02 WS6 and I'm going to put them in with Full ...

  1. #1
    Junior Member Mesterious's Avatar
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    Exclamation Another NGK TR-55 Spark Plug Gap Question

    I have NGK TR-55 V-Power Spark plugs for my 02 WS6 and I'm going to put them in with Full exhaust and a lid. Well I looked at many threads but I have just got mixed gaps. I have read that some people say the best is .55. Some people say .5 is the best. Some people also say .45 is to low but some still like it. Well how would either one make a difference? Which one would be better for me?

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    Moderator Cutlass's Avatar
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    .55 is way to much....thats more then 1/2 inch
    For your lid and exhaust mods, anywhere from .045 to .055 is fine. You won't really notice any difference. I set mine to .050"

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    Junior Member Mesterious's Avatar
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    Quote Originally Posted by Cutlass View Post
    .55 is way to much....thats more then 1/2 inch
    For your lid and exhaust mods, anywhere from .045 to .055 is fine. You won't really notice any difference. I set mine to .050"
    I don't what I was thinking. Lol

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    Moderator Cutlass's Avatar
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    Super easy typo that I make all the time...

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    Slow'er'Ass Mr. Luos's Avatar
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    .052"

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    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
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    Iridiums come pre-gapped...





















    :\Users\Steven\Pictures\d6ftg5nh.gif


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  7. #7
    Member natews6's Avatar
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    I always buy plugs that are pregapped or don't need gapping

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    Slow'er'Ass Mr. Luos's Avatar
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    Should ALWAYS check the gap.

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    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
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    Quote Originally Posted by Mr. Luos View Post
    Should ALWAYS check the gap.
    Except 4 iridiums. They instruct you not to bend the electrode due to damaging it..

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    The AC Delco iridiums designed for the LS1 come gapped as .040. Good or too narrow for mostly stock?

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    Slow'er'Ass Mr. Luos's Avatar
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    Quote Originally Posted by Smittro View Post
    Except 4 iridiums. They instruct you not to bend the electrode due to damaging it..
    Another reason I don't use them then.

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    Moderator Cutlass's Avatar
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    Quote Originally Posted by Smittro View Post
    Except 4 iridiums. They instruct you not to bend the electrode due to damaging it..
    you can check them without bending them

  13. #13
    Moderator Cutlass's Avatar
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    Quote Originally Posted by mbrownin View Post
    The AC Delco iridiums designed for the LS1 come gapped as .040. Good or too narrow for mostly stock?
    They work good for mostly stock

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    Quote Originally Posted by Mr. Luos View Post
    .052"

    I swear you posted .054" in the last thread that asked this question. Now I have to pull all my plugs and set the gap down by .002".


    ------------------------------------------------

    sparkplugs
    Last edited by pajeff02; 05-27-2010 at 07:56 PM. Reason: Found thread.

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    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
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    Quote Originally Posted by Cutlass View Post
    you can check them without bending them
    Oh I know. They're all I use I worded it wrong but they do come with gap protectors

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    Slow'er'Ass Mr. Luos's Avatar
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    Quote Originally Posted by pajeff02 View Post
    I swear you posted .054" in the last thread that asked this question. Now I have to pull all my plugs and set the gap down by .002".


    ------------------------------------------------

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    I changed my mind.

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    Quote Originally Posted by Mr. Luos View Post
    I changed my mind.

    Ok.

  18. #18
    Senior Member JayTA98's Avatar
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    .050 here. Is the only gap that had work fine for me.

  19. #19
    Junior Member Mesterious's Avatar
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    I gaped mine at .050 and car is running strong! Thanks everyone!

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