gapping plugs
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This is a discussion on gapping plugs within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; so i got bought bkr7eix -11 should i leave em at 1.1 or change it? im going one step colder ...

  1. #1
    Registered User sxcrxy's Avatar
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    gapping plugs

    so i got bought bkr7eix -11 should i leave em at 1.1 or change it? im going one step colder and ive never changed plugs on this car since i bought it im running 21psi

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  3. #2
    zax
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    I'm assuming the units are in millimeter? 1.1mm is 0.028", and according to my tuner, modified EJ205s should be running 0.028-0.032". I believe I'm gapped at 0.030".
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  4. #3
    Registered User teflon_jones's Avatar
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    Leave them alone. Gapping plugs is something that went out with the dinosaurs and is very rarely necessary, and when it is, it's usually only on a very highly modified/tuned car.
    Scott
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