What gap for NGK TR55s?

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08-06-2003, 03:17 PM

SPANKY LS1

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What gap for NGK TR55s?

I have TEA S2, 230/224, bolt ons, curently running AC Delco plugs, wanna run some TR55s, what should I set the gap at? Any gain from ACs to these? TIA, Shawn

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08-06-2003, 04:31 PM

99 Black Bird T/A

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Re: What gap for NGK TR55s?

~.050 to .055

Local dyno operator claims to see slight gains when AC Delco's are replaced with other plugs...but I don't know.

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08-06-2003, 04:56 PM

peterock98

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Re: What gap for NGK TR55s?

.50

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