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Old Oct 3, 2003 | 07:44 PM
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Default NGK-TR55
Are these the best plugs to get? And, what should they be gapped to?
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Old Oct 3, 2003 | 09:14 PM
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Default Re: NGK-TR55
YES, IMO. I've tried gaps between .050 and .060, there doesn't really seem to be much difference to me...
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Old Oct 3, 2003 | 09:18 PM
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Default Re: NGK-TR55
Based on my experience, TR55's gapped at 0.050-0.055" are a good OEM heat range plug, but (with similar mods to yours) I've had better luck with TR6's gapped at ~0.045".
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Old Oct 4, 2003 | 12:29 AM
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Default Re: NGK-TR55
Gotta go with the TR55's. Quality plug. The gap will depend on the power you're making.
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Old Oct 4, 2003 | 02:34 AM
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Default Re: NGK-TR55
Thanks guys
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Old Oct 4, 2003 | 04:36 PM
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Default Re: NGK-TR55
i got the TR55's gapped @ .50.
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Old Oct 5, 2003 | 02:52 PM
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Default Re: NGK-TR55
Where can I buy them?
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Old Oct 5, 2003 | 06:46 PM
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Default Re: NGK-TR55
Gotta go with the TR55's. Quality plug. The gap will depend on the power you're making.
With that said, where do you go with gap? i.e - less HP = less gap? Or?

I installed my TR55's about 7K miles ago and set them at .052 because I had heard the stock .060 was way too much. My car is mostly stock: lid, !cats, "dynomouth", Thunder Racing MAF ends, FRA, EGR mod, TB bypass. Am I about right on gap? Or way off? TIA
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Old Oct 5, 2003 | 06:50 PM
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Default Re: NGK-TR55
I think I am gonna pick some up tomarrow, and gap them at .50
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