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Spark Plug Gap


BLN68U

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  • FORD FORD FORD
  • Donating Members
  • Member For: 21y 1m 1d
  • Gender: Male
  • Location: Victoria Point In Brissy's eastern side

Many use .9mm, usually a tuner will tell you ifn they are too fat once you defer from the generic tune

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  • 2 months later...
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  • Member For: 18y 9m 30d
  • Location: Canberra

mate, from other peoples experience, not much gain in the muffler job unless you just want a bit more growl.

Spark plugs should be fine at .89... however, I had mine gapped to this, and then when I had it back on the dyno with another tune and all my go fast bits on, they were breaking down at around 3800rpm... so I have re-gapped them further to .75..

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  • 1 month later...
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  • Member For: 19y 4m 15d
  • Gender: Male
  • Location: SoR, WA

Guys

Ive had a custom tune now for a while and I dont think I have had any issues with my spark plugs but was told to get some new ones because once you up your boost the plugs dont have there great life span any more.

What size gap should I have? I am running 10psi.

Cheers

Adrian

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