Vortex magneto plug gap
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Vortex magneto plug gap

  1. #1
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    Default Vortex magneto plug gap

    I know a guy with a BBC 396 with a Vortex mag and am curious as to what the plug gap should be set at. Right now its at 18 (at the recommendation of a friend). What do you guys say? Fuel is usually around 100 octane and the boat has a 150 shot of nitrous.

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  3. #2
    Senior Member jockorace's Avatar
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    18 thou is just right. It also helps to run a plug with a cut back strap. Used to have to cut them back yourself, but Autolite sells them now in thier AR series of plugs. Oh, fyi.........it's VERTEX. Jocko

  4. #3
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    Quote Originally Posted by jockorace View Post
    18 thou is just right. It also helps to run a plug with a cut back strap. Used to have to cut them back yourself, but Autolite sells them now in thier AR series of plugs. Oh, fyi.........it's VERTEX. Jocko
    Thanks Jocko I appreciate the feedback.

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