Best Overall Spark Plug ?

Discussion in '1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-' started by all1knew, Jun 3, 2013.


  1. all1knew

    all1knew Member

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    Hello all,

    What's everyone's opinion on the best spark plug for a daily driver on 93 Octane?

    Bill
     
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  2. srtthis

    srtthis the guy doing it does every local racers rear end

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    NGK...
     
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  3. 85_SS_302_Coupe

    85_SS_302_Coupe it sucks (I know) to be on the receiving end

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    The most basic copper plug you can find. Avoid hype, avoid anything that has "split" or "fire" or "platinum" or anything referring to enhanced performance. That is assuming the engine is stock, but then if it's stock why are you running 93?
     
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  4. f8tlfiveo

    f8tlfiveo My wife likes my spool and blow-off valve.

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    I agree.. Copper plugs all the way. My motor is stock with the timing bumped, that's the only reason I run 93
     
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  5. all1knew

    all1knew Member

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    I've hear good things about NGK, but is there a part number I should be looking for that is best for us?

    Not a stock motor, heads, intake, exhaust and all the other bolt on goodies.

    Bill
     
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  6. srtthis

    srtthis the guy doing it does every local racers rear end

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    depends on your heads different heads use different plug seats and different reach's...
     
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  7. all1knew

    all1knew Member

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    sorry about that. I have Twisted Wedge heads.
     
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  8. srtthis

    srtthis the guy doing it does every local racers rear end

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    stock short block?
     
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  9. all1knew

    all1knew Member

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  10. srtthis

    srtthis the guy doing it does every local racers rear end

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    id go with an NGK 3924 with out knowing your overall compression. im pretty sure thats the one for a stock heat range plug
     
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  11. all1knew

    all1knew Member

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    thanks for all the help bud.
     
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  12. srtthis

    srtthis the guy doing it does every local racers rear end

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    no problem...

    like i said im pretty sure thats the correct heat range but not 100%. im sure some one will correct me if im wrong
     
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  13. mikestang63

    mikestang63 Mustang Master

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    Hard to beat the tried and true Autolite copper plugs. Agree avoid the "hi performance" Splitfire, E3, or platinum plugs. Pure waste of money and I've seen them foul more times than I can count. Even on my blown or nitrous cars I went with colder autolites and never had a problem.
     
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  14. 85_SS_302_Coupe

    85_SS_302_Coupe it sucks (I know) to be on the receiving end

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    Buy the cheap ones, replace them often. If you get bored, look into indexing and strap modifying...If nothing else I've found some pretty significant improvements in throttle response on my car by using both.
     
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  15. aar0s

    aar0s Founding Member

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    Ive heard of indexing but not strap modifying, more info please?
     
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  16. srtthis

    srtthis the guy doing it does every local racers rear end

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    You can cut back the strap to the middle of the electrode to help project the "flame". If you look at a true racing plug they have short ground straps
     
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  17. aar0s

    aar0s Founding Member

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    ahh, seems like ive heard that called side indexing.
     
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  18. Mustang5L5

    Mustang5L5 Car used in adult film "Highway Gangbang-InDaButt" SN Certified Technician Founding Member

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    NGK is the OEM plug for Nissan/Infiniti. They are good quality plugs. They also make copper versions, in addition to platnium and iridium.

    With a stock fox Mustang, i'd recommend copper. Most of the time, i'll say get copper OEM motorcraft plugs.

    BTW Motorcraft and Autolite split ways in the 60's. Their plug machines are the same, but they are not the same plug despite looking identical. I've "heard" that the motorcrafts plugs specs are tighter than Autolite
     
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  19. cenok is family

    cenok is family Active Member

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    Motorcraft sp-450. No reason to spend more money on spark plugs unless you're running forced induction or a radical n/a setup.
     
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  20. 85_SS_302_Coupe

    85_SS_302_Coupe it sucks (I know) to be on the receiving end

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