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Old 01-14-2009, 08:00 PM   #1
greg fulk
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Talking Re: Spark Plug Indexing

Bill I think their's some guy up in Ohio that dose it when he's not playing with a nitro funnycar!
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Old 01-14-2009, 09:39 PM   #2
69Cobra
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Default Re: Spark Plug Indexing

Come on now guys... what's the reason or benifit of cryo treating plugs?
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Old 01-14-2009, 10:50 PM   #3
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Default Re: Spark Plug Indexing

It keeps em cool...
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Old 01-15-2009, 11:22 AM   #4
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Default Re: Spark Plug Indexing

I don't know about the cyro , but I do sell alot of Autolite AR 3910X and AR3933X to the go cart guys. It's a surface gap plug that has proven to be worth some big gains on their dyno.
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Old 01-15-2009, 04:52 PM   #5
Jeff Lee
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Default Re: Spark Plug Indexing

What is a surface gap plug?

And I just read a post elsewhere and the racer eliminates (not cut back, eliminated) his ground strap. Anybody have any comments on that? I have a hard time fathoming that being effective...
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Old 01-15-2009, 07:00 PM   #6
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Default Re: Spark Plug Indexing

I am going to try and post some pictures tonight.
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Old 01-15-2009, 10:31 PM   #7
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Default Re: Spark Plug Indexing

We dynoed the ground strap off idea,never made any HP but never lost any.I think the no ground strap would be hard on wires and maybe even coils. We like the wider gaps,however after reading Mr. Baileys post I may try tightening up the gaps.
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Old 01-25-2009, 11:44 AM   #8
Chris Cogan
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Default Re: Spark Plug Indexing

Out of curiousity, what is the thinking behind cryogenically treating the plug? I know many Karting guys like surface gap style plugs like the ones shown below. One is a surface gap NGK, the second is a LGS Brisk plug and the last is a multispark Brisk.
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