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Down side to smaller plug gap?

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Old 02-25-2008, 09:44 PM
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Default Down side to smaller plug gap?
I gapped my tr6s to .025 while attempting to diag a problem. Long story short i fixed my issue and still have the plugs in. The car runs fine, just wondering if i should open them back up or leave them alone. Car is running 14psi through a 67mm turbo.

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Old 02-25-2008, 11:37 PM
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rougher idle
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Old 02-26-2008, 10:22 AM
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Could maybe try .030 but it is a lot of boost so you wouldn't really be able to run more than .035 gap probably anyway.
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Old 02-26-2008, 11:04 AM
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I'd just leave it. I run my plugs at .025 also and haven't had a problem in 3 years.
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Old 02-26-2008, 12:38 PM
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.025 here too....it was the only thing that cleared up my high rpm miss.
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Old 02-26-2008, 06:32 PM
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No different coils or anything available yet that would put more poop in the plugs?
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Old 02-26-2008, 07:51 PM
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I've heard that a narrow plug gap slightly reduces gas mileage.
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Old 02-28-2008, 01:10 PM
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Im just concerned with performance,and quality of idle. I do have some minor surging when i let off the gas quickly but i suspect the tune.
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