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Thread: Spark Plugs that are Gappable and good

  1. #1
    Join Date
    Oct 2009
    Location
    Pennsylvania
    Posts
    138

    Default Spark Plugs that are Gappable and good

    I am looking to replace my old spark plugs and I've having trouble finding any plugs that look good (i.e. reliable) that are gappable. I have a screamin Demon coil an upgraded plus that claim let allow me to run a .065 gap. I don't want to run a gap that is that big but I would like to take advantage and run a slightly larger gap and I want something that is at least coated in Platinum. I have previously used Splitfire triple platinum plugs but they've been discountinued....Can anyone make any suggestions? Good and bad experiences are welcomed...

  2. #2
    Join Date
    Sep 2009
    Location
    Lansing, Michigan
    Posts
    24

    Default

    I run Ac delco's in everything.

  3. #3
    Join Date
    Mar 2009
    Location
    Katy, Texas
    Posts
    27,332

    Default

    Champion "el cheapo" I have not run a coil with a higher voltage though.

  4. #4
    Join Date
    Jul 2009
    Location
    Burleson, TX
    Posts
    204

    Default

    Boshe or the new Pulstar you can't gap them but the supposed to be really good.

  5. #5
    Join Date
    Mar 2009
    Location
    South TEXAS
    Posts
    7,244

    Default

    Use the Champion Truck Plugs. They will stand up to high output coils and even MSD ignition systems. Had them both on a YJ with a 4.0L and never a problem with those Champions.
    Hey bubba get your hand off my ass,

    Some days it is just not worth it to gnaw through the leather restraints.

    R.I.P. Brian 96_XJ Perrine 1990-2011

  6. #6
    Join Date
    Sep 2009
    Location
    On my mountian NOR CAL
    Posts
    1,879

    Default

    Champions are the recomended plugs for the Cherokee and came from the factory with them installed. For some reason XJ's like cheap plugs and run much better on them I beleive the are a RN9YC but check to be sure gap should be at .35
    Aint got no whistle, don't belch out smoke, but my V10 aint no joke !!!

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