C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

What plug gap should I use

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Old Oct 24, 2003 | 11:45 AM
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black_89_vette's Avatar
black_89_vette
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Melting Slicks
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From: Winchester Ontario
Default What plug gap should I use

Currently I am running 0.035" on my 383 with a 150 shot of TNT. I don't use the nitrous that much, well now that my bottle is empty and need to refill. :D

I have MSD 6AL, NGK TR6, and 8mm Taylor Spiro Pro wires.

I heard other people (non-nitous) using gaps as wide as 0.050". SHould I keep my gap tight for nitrous or open it up a bit. WIth a wider gap, would I see performance/fuel economy increase? Or does nitrous require a tight gap?

I guess I could always have 2 plugs. 1 for nitrous use and 1 for non-nitrous use, but that's a lot of plug changing...Nah, I'll stick with the TR6's.
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Old Oct 26, 2003 | 05:29 PM
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Default Re: What plug gap should I use (black_89_vette)

I'd say with that ignition, you could probably get away with a .040, but I wouldn't go with any more than that.
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