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what kind of spark plug should i run

This is a discussion on what kind of spark plug should i run within the External Engine forums, part of the LSx Technical Help Section category; what kind of spark plug should i run and maybe wires i currently have basicly no mods (borla catback, air ...

  1. #1
    Junior Member
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    Red
    1999 Trans Am

    what kind of spark plug should i run

    what kind of spark plug should i run and maybe wires i currently have basicly no mods (borla catback, air lid) but i will with time

  2. #2
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    NBM
    1999 Hardtop Z28

    ngk tr55s

  3. #3
    Make real real sure Johns00Z28's Avatar
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    +1 on the NGK TR55s

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    Just another Joe Eagle's Avatar
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    Autolites. PN: AR103

  5. #5
    Still Too Young To Care
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    Black
    1999 Trans Am

    Do a search and you will find a ton on this subject...you will find most prefer NGK TR55s or TR6s if your gonna spray..I run MSD wires

  6. #6
    Just another Joe Eagle's Avatar
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    You'll also find that those who have burned a set of NGKs use Autolites for their next set! AR93's for spray, AR104's for stock.

    GL & HTH,
    -Eagle
    | '02 WS6 M6 | KOOKS/ORY | LC-1 | LOU'S SS | UMI SFCs | BMN LCAs & RELOC's | Hotchkis STB | HSW 150 shot | Lid | 42# Lucas | HPTuner Pro |

  7. #7
    LTX N20LT4's Avatar
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    10's N/A

    I'd have to say NGK's all the way. I've used everything from Champion, Autolite, NGK, etc. and I must say I am most impressed with the NGK's, although it's not like Auto Lite's are bad plugs - they're not. I use NGK TR6's in mine!
    486/438
    10.68/127 N/A


  8. #8
    cutting and welding mark21742's Avatar
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    hugger orange
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    im running the autolite AR103's and like them, but lots have good luck with the ngk's TR55's and TR6's

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    I am looking at replacing the stock Delco Iridiums and changing to a NGK Iridium. According to NGK the stock replacement is a TR5IX, yet everyone (including the WS6 store) is reccomending a TR55. Anybody know what the difference is and why folks recommend the TR55 over the TR5IX?

    Keep in mind these are going in a totally stock WS6.

  10. #10
    15 sec. Oh yeah, its fast UTVols98's Avatar
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    Quote Originally Posted by Loudz28 View Post
    ngk tr55s
    +4,5,eh whatever. If all these people are running them it can't be wrong.
    2000 Z28: Accufab 4150, Vic Jr. 150 shot, Patriot stg 2 heads, big cam, FLT Stg VI 4L60, S60 rear. Waaay more stuff to list. 3100 LBS.

  11. #11
    Slow'er'Ass Mr. Luos's Avatar
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    Just put TR55's in mine.

  12. #12
    Life in the Fast lane sunsetorangess's Avatar
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    Met. Sunset Orange
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    Been running the tr55's with spray for sometime.
    No issues.
    J
    2001 SS, Its not the car its the Driver that matters....

  13. #13
    Just me Y2KPewterSS's Avatar
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    Pewter metallic
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    TR55s here for several years with no issues either.
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    Quote Originally Posted by konigandy6 View Post
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  14. #14
    Member slikws6's Avatar
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    I saw Horsepower TV do a plug comparison test and these E3's suprised me.


    The E3 generated an average of 5.8 more horsepower while using 3.9% less fuel.

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    Senior Member OnEbAdReDSS's Avatar
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    2000 Camaro SS # 5,876

    I watched that same thing... but 5 hp ain't much... its to the flywheel remember that..

  16. #16
    Slow'er'Ass Mr. Luos's Avatar
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    Quote Originally Posted by 2000SuperSportMaro View Post
    but 5 hp ain't much...
    Depends on who you ask.
    I was pissed at my car for being down 3RWHP last time I dyno'd.


    Just put TR55's in a friend's 2002 Z06.

  17. #17
    Internet Tough Guy Fury_786's Avatar
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    Sinister, SixGun
    2001 SS, 2002 L36 M5

    +2 for TR6's

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    tr6's no problem

  19. #19
    Impounded
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    01 TA

    I went from the stock plugs, to the NGK TR55's and actually didn't like them as much. Soon after I jumped on the NGK Iridium TR55IX bandwagon and was much happier with the results and seat of the pants feel in part, low and wide open throttle situations.

    I recently had Livernois port and polish a set of LS6 heads and threw a set of comp cams, LS6 intake, BBK T.B. and a few other goodies and thought it might be a good idea to get a slightly colder plug to be on the safe side of things since I was seeing close to 400rwhp through my auto.

    I looked around and found a local company called WeaponX and the owner said he would change all 8 for free as long as I bought his plugs. He said that they were the plugs to use and I thought, smokin deal as I know how brutal it is to change a couple of them so I figured I'd give their spark plugs a shot. (Yes, I made sure he changed all 8)

    I can't recommend their plugs enough. I would have never thought that spark plugs could make that much of a before and after difference, especially since I already had NGK iridiums in the car that were performing better then the TR55's. I believe the model name of the spark plug was K6CF, but don't quote me on that. Apparently WeaponX is well known in the Mustang community.

  20. #20
    Slow'er'Ass Mr. Luos's Avatar
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    You shouldn't feel any performance difference from the TR55 to the iridium TR55. The difference is in how long they last.
    Of course...that is if both sets were gapped properly.
    2008 Trailblazer SS
    Yank PTB3600, Kooks 1 7/8" LT's, 4" intake, E-fans, Magnaflow, Sonnax kit, tranny cooler, tune.
    Lowered, HID's, tinted.

    1999 Pontiac Trans Am WS.6 #1747 SOLD
    531.1 RWHP 481.3 FT/Pounds all motor.

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