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New plugs

This is a discussion on New plugs within the External Engine forums, part of the LSx Technical Help Section category; Hello everyone. I need advice on plugs. Should I go with the NGK regular plugs or the platinum ones. The ...

  1. #1
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    Question New plugs

    Hello everyone. I need advice on plugs. Should I go with the NGK regular plugs or the platinum ones. The car still has the factory ones with 92,000 miles. The tr5 or tr6. I live in south fla its always hot out. Its 88 degrees as I write this. Thanks. The car is stock except a lid.

  2. #2
    Factory Freak Mikat1's Avatar
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    TR5-GP plugs are good. might as well get some new wires while you are at it.

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    ok, are the Autolite wires any good they are 42.00 dollars. I dont race.

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    Factory Freak Mikat1's Avatar
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    can't be mad at autolite.. it's not about racing tho... ita about getting the most spark and energy to your plugs. I used the MSD 8.5mm super conductors. they are pretty comparable in price. it's personal preference tho. good luck.

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    Senior Member INMY01TA's Avatar
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    Use the NGK TR-55. Part #3941 I believe. If you want to spend a buttload more you can use the TR-55 IX irridium ones.

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    Slow'er'Ass Mr. Luos's Avatar
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    I would stick with the stock wires unless one has a problem. Then go MSD if one needs replaced.

    As for plugs, I run NGK TR55's or AutoLite AR103's in mine.
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    NY Representative basballny2's Avatar
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    I run NGK TR55 plugs and MSD wires.....no problems so far

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    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
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    Factory iridiums(sp) and factory wires..
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    Just me Y2KPewterSS's Avatar
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    Quote Originally Posted by Mr. Luos View Post
    I would stick with the stock wires unless one has a problem. Then go MSD if one needs replaced.

    As for plugs, I run NGK TR55's or AutoLite AR103's in mine.
    I second this, I run MSDs with TR55s.

  10. #10
    Yeah baby! Yeah! silverWS6's Avatar
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    Quote Originally Posted by Y2KPewterSS View Post
    I second this, I run MSDs with TR55s.
    I third it I run the same thing

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    LSwut tep98ws6's Avatar
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    Quote Originally Posted by Y2KPewterSS View Post
    I second this, I run MSDs with TR55s.
    fourth it. plus MSD is great - one of my wires split, i called them and they sent me two new ones for free.

  12. #12
    You've Seen The Butcher GoldenFlame's Avatar
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    I don't know if you can 5th a Statement, but I run the exact same combo as well

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    Spaz is My Mentor SMWS6TA's Avatar
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    Quote Originally Posted by basballny2 View Post
    I run NGK TR55 plugs and MSD wires.....no problems so far

    ^^

    This is what I'm running

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    Just me Y2KPewterSS's Avatar
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    MSDs and TR55s are well represented with lots of success here

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    Junior Member hugh jwanger's Avatar
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    factory iridiums and msd wires for me

  16. #16
    old timer blue02Z's Avatar
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    my tuner told me to run tr6 cuz it a step colder, and it would be better than my delco iridiums witch runt too hot and cauze detonation

  17. #17
    NASCAR Go Fast, Turn Left ntimid8r's Avatar
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    Quote Originally Posted by blue02Z View Post
    my tuner told me to run tr6 cuz it a step colder, and it would be better than my delco iridiums witch runt too hot and cauze detonation
    Yes tr-6 is a step colder but unless you're running FI or nitrous....it's not working to your advantage. Perhaps use a tr-55 and a slightly wider gap than factory setting. What reason would your tuner want to run a colder plug anyways? Never heard of that on a stock motor.

  18. #18
    Slow'er'Ass Mr. Luos's Avatar
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    Quote Originally Posted by ntimid8r View Post
    Yes tr-6 is a step colder but unless you're running FI or nitrous....it's not working to your advantage. Perhaps use a tr-55 and a slightly wider gap than factory setting. What reason would your tuner want to run a colder plug anyways? Never heard of that on a stock motor.
    It is because the TR55's tend to run pretty hot for a stock replacement plug. Nothing that will create a problem by any means though.
    Thing is, the TR6 is a little too cool for the stock motor.

    This is why I am going to try the AutoLite AR103's.

  19. #19
    NASCAR Go Fast, Turn Left ntimid8r's Avatar
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    Quote Originally Posted by Mr. Luos View Post
    It is because the TR55's tend to run pretty hot for a stock replacement plug.
    I've never heard that before. Plugs are built to specific heat ranges...the tr55 is built to same spec as factory. A motor doesn't control how hot or cold the spark is...that's from the content of the plug combined with the electrical supplied current. But as you mentioned...using a different brand plug may work better for your motor and/or conditions.

  20. #20
    Member danziger's Avatar
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    I've had great luck with NGKs in all my vehicles. The TR-55 is a great choice for a stockish LS1. My LSx 382 used TR6s because I was spraying a 150shot on top and liked the colder range for the increased cylinder-pressure. I like stock or GMPP red plug wires.

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