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Thread: Best spark plugs theory?

  1. #1

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    Best spark plugs theory?

    Hey guys,
    just curious as to what spark plugs you prefer and what results you've found. I'm running u13 motor tuned and running 10psi on e85. Gap sizes ? Make ? Models ? I've had iridiums before I liked and others have told me standard plugs have been the best for e85 and all sorts.

    What do you think ?



    SSS33U boosted N15

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    Leroy Peterson's Avatar
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    0.8mm gap is a good start for turbo and should be fine for your boost levels.
    I generally stick with NGK brand. Heat range would be fine at 6 or 7 depending on how hard/hot you push it.
    I stick to copper plugs but mine doesnt get driven much, probably get a bit more milage from iridium plugs but its a bit of a price hike.
    So BKR7 gapped to 0.8mm would be a good starting point.

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    SSS33U (10-05-2016), sss4me (10-05-2016)

  4. #3

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    Awesome! Thanks for the info mate, just gives me a better idea on which way to go


    SSS33U boosted N15

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