NGK vs Denso Iridium Spark Plugs

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Thread: NGK vs Denso Iridium Spark Plugs

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    Wholesome creamy goodness Supraman16's Avatar
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    NGK vs Denso Iridium Spark Plugs

    Hi everyone,
    I was wondering if anyone has compared Denso vs NGK Iridium plugs. I know that the Denso's are about 2x more expensive than the NGK's, but is there really a difference between the two? From what I know, the Denso's have a smaller tip, 0.4mm vs 0.7mm on the NGK's, but from doing a Google search, I didn't find any concrete evidence to show that this size difference produced any better performance results. I wanted to see if anyone has tried both on our beloved Supra TT's.
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  2. #2
    SupraForums Member
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    A well-designed smaller tip seems like it would be better for spark intensity but I've only used the NGK6988/BKR7EIX-11 which work great for me.
    Nick 95 6sp
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    Ex-hardtopper Boostrush's Avatar
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    I use Denso Iridium IK24's and have been using them since day one. They perform flawlessly under all conditions, so I've never tried anything different. Only downfall is that they are a bit expensive.

    If anybody uses the NGK's with no hiccups, I may try them out next time around.
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    SupraForums Member truesbluz's Avatar
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    I use the denso IK22s. You're right, they are expensive, but in my travels last about twice as long as the NGKs. So there you have it...6 inone hand and 1/2 dozen in the other.

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    Over Medicated kbprice's Avatar
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    I've used both the Denso IK22's and the NGK BKR7EIX-11. Actually just put in a new set of NGK's yesterday. Both worked the same. Only 2 reasons I use the NGK's is cost and the NAPA by me stocks them, always.
    FYI: I think the tips on the NGK's are 0.6mm not 0.7mm

    '96 NA-T, 542rwhp 5-speed

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    Banned Spoolin Turbo's Avatar
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    denso's have been known to lose the plug ceramic. Happened to me and others on here.

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    SupraForums Member Taimur's Avatar
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    I've been boosting on IK27's gapped at 0.30 for two years and never had an issue.
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    SupraForums Member
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    Where do all of you guys get these and do you have a part number?

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    I used to use the NGK standard 6097s and had to replace them every oil change (2 months). I changed to the IK24s about a year ago and haven't replaced them yet. I haven't had a misfire with them either.

    Steve


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    Has anyone actually ever came to a concensus on which spark plugs are better the Denso vs the NKG iridium?

  11. #11
    SupraForums Member SupraSonic's Avatar
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    NGK's here, ran both and both seem fine to me.

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