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Author Topic: ugraded spark plugs?!  (Read 3014 times)

Offline nc35

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Re: ugraded spark plugs?!
« Reply #15 on: August 04, 2010, 08:02:00 am »
The higher the tune the smaller the gap to prevent pre ignition.

Pre gapped at just over 0.8mm you can reduce to 0.7mm for a stage 2

Hope this helps.
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Offline Dav

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Re: ugraded spark plugs?!
« Reply #16 on: August 04, 2010, 07:25:22 pm »
Pre igniton is caused by the wrong grade, if you have this you need a colder plug i.e. an 8, if the gap is too big the boost just blows it out also causing a missfire. ime.
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