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best replacement spark plugs

This is a discussion on best replacement spark plugs within the Firebird / WS6 forums, part of the Vehicle Specific category; What some brands that sell the best aftermarket spark plugs, for a 2002 WS6 with minor modifications(air lid, IAT sensor, ...

  1. #1
    Justin
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    best replacement spark plugs

    What some brands that sell the best aftermarket spark plugs, for a 2002 WS6 with minor modifications(air lid, IAT sensor, BG ram air)??? Also when are you supposed to replace the sparkplugs??? and when are you supposed to get a tune up also??

    JR.

  2. #2
    Rice Killa JwMonE99's Avatar
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    I think the ACDelco plugs are the better ones

  3. #3
    Member wesTXwitesnake05's Avatar
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    White with silver stripes
    2000 Trans Am WS6

    go with NKG TR55's, they come pre-gapped @ .060. which anywhere from .055-.060 would probably be good for your car considering your mods. just be sure there all gapped the same!.

  4. #4
    Local Bum TARZAN's Avatar
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    Cobra, Z28, GN, F250

    happy with my NGK's....

    -Will

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    Senior Member Wheeler99WS6's Avatar
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    black, 99 T/A WS.6

    AC delco platinum from factory I think, supposed to be good for 100k mi. I went with NGK TR55IX, little more expensive then the reg TR55 but they are iridium instead of copper, I am hoping to get more miles out of them then the copper ones.
    1999 T/A WS6 Black -------SOLD
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  6. #6
    Senior Member Redphoenix1998's Avatar
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    NGK TR55's for sure

  7. #7
    Senior Member ss~zoso~ss's Avatar
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    what do you think about bosch they have 2 and 4 tipped platnium ones they look and sound like they'd be kick ass

  8. #8
    member since may 2000 nhraformula's Avatar
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    a plug is a plug is a plug
    2000 nhra edition formula
    a few bolt ons, 379 rwhp
    11.96 @113.25

  9. #9
    # 1846 mahoney1's Avatar
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    Quote Originally Posted by nhraformula View Post
    a plug is a plug is a plug
    Def not true. On stock cars most wont idle as smooth without the factory plug. You may not agree, but I deal with it all day long. Gm's run best with delco's, ford's = autolite, jap cars = ngk, german hunks of... = bosch, jeep/dodge/chrysler= champions etc. etc. etc.!!!!!!!

  10. #10
    The Bandit Wesman's Avatar
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    Quote Originally Posted by nhraformula View Post
    a plug is a plug is a plug
    Hell no. You're honestly saying that a copper core Champion plug will perform the same as an AC Delco Iriduim plug?? Definitely not, huge difference.

    I have AC Delco Iridiums (which are actually made by NGK) in my LS1, and I think they are great plugs. I highly reccommend them.

  11. #11
    The Bandit Wesman's Avatar
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    Quote Originally Posted by ss~zoso~ss View Post
    what do you think about bosch they have 2 and 4 tipped platnium ones they look and sound like they'd be kick ass
    They look like they would but they really don't. Bosch plugs don't tend to work well in American cars or Jap cars at all. Hell, even some German cars don't run too well with them.

    Stick to AC Delco or NGK for best performance and efficiency, they both work well.

  12. #12
    member since may 2000 nhraformula's Avatar
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    Quote Originally Posted by Wesman View Post
    Hell no. You're honestly saying that a copper core Champion plug will perform the same as an AC Delco Iriduim plug?? Definitely not, huge difference.
    show me horsepower difference between the two

  13. #13
    King 0f n00bz shady milkman's Avatar
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    Quote Originally Posted by nhraformula View Post
    show me horsepower difference between the two
    i agree with my best pal nhra. i think its more about the wires then the plugs.

  14. #14
    member since may 2000 nhraformula's Avatar
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    im still waiting on this proof that ones better than the other.

  15. #15
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    Well try all of the shitty 1s out n tell us the dif. in ur ETs..... Ima stick 2 my NGKs

  16. #16
    member since may 2000 nhraformula's Avatar
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    Quote Originally Posted by BlackBird 99 View Post
    Well try all of the shitty 1s out n tell us the dif. in ur ETs..... Ima stick 2 my NGKs
    if one person is going to say one is better than the other, prove it.
    my car runs fine on ac delcos. it doesnt throw codes, misfires or anything.


    just because a person pays more for a plug doesnt make it better than a cheaper one.

  17. #17
    Member wesTXwitesnake05's Avatar
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    Im not trying to hijack the thread, but this seems like a good place to ask this question. Say you bump up the compression ratio to 11.25:1? Wouldnt it be better to go with a colder spark (TR6) or stay with TR55's?

  18. #18
    The Bandit Wesman's Avatar
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    Quote Originally Posted by nhraformula View Post
    if one person is going to say one is better than the other, prove it.
    my car runs fine on ac delcos. it doesnt throw codes, misfires or anything.


    just because a person pays more for a plug doesnt make it better than a cheaper one.
    THe bottom line is that copper plugs don't least nearly as long as platinum ones, and platinum plugs don't last as long as iridium ones.

    They may make almost the same power when brand new, but after 5, 10, or 30K miles, the performance of the copper plug will degrade, while the platinum and Iridium plugs will still be going strong.

    I'd rather have consistant power as the miles rack up instead of losing power and efficiency due to the cheaper plugs wearing out faster.

  19. #19
    car enthusiast djvaly's Avatar
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    Quote Originally Posted by wesTXwitesnake05 View Post
    go with NKG TR55's, they come pre-gapped @ .060. which anywhere from .055-.060 would probably be good for your car considering your mods. just be sure there all gapped the same!.
    I agree, most pro shops use NKG

  20. #20
    member since may 2000 nhraformula's Avatar
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    Quote Originally Posted by Wesman View Post
    THe bottom line is that copper plugs don't least nearly as long as platinum ones, and platinum plugs don't last as long as iridium ones.

    They may make almost the same power when brand new, but after 5, 10, or 30K miles, the performance of the copper plug will degrade, while the platinum and Iridium plugs will still be going strong.

    I'd rather have consistant power as the miles rack up instead of losing power and efficiency due to the cheaper plugs wearing out faster.
    The C5 Corvette comes with Platinum Tip "100,000 Mile" AC -Delco Plugs. It also comes with about 7mm, carbon resistor based, plug wires.
    above same plugs come in our cars.

    stock plugs already have a platinum tip, why buy other plugs??
    thats why i say a plug is a plug is a plug.

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