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Apr 9, 2011 | 01:01 PM

93BlackZ28

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From: Lincoln, NE

Plug Question

Just picked up some NGK TR55's and was wondering what I should gap them to? Cam only car with your normal bolt ons. 226/232 .592/.592 110lsa cam. HP #'s in my sig.

I don't know a whole lot about spark plugs so any help would be appreciated.

Apr 9, 2011 | 01:24 PM

96TransAmboosted

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From: Pinellas Park Florida

.50 NA about .35 nitrous it what i have always run since the old L98 motors, and all my LT1's

Apr 9, 2011 | 03:07 PM

93BlackZ28

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Thanks. Anyone else?

Apr 9, 2011 | 03:56 PM

918_ws6

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From: Tulsa, Ok

same
thats a safe number

Apr 10, 2011 | 04:03 PM

LigHtEmUp01

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.50 and make sure they are all the same they can be off a little as long as they are all the same gap

Jul 20, 2015 | 08:28 AM

93BlackZ28

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Bumping my old thread to ask OPINIONS on what plugs to run. I'm doing a OTVC kit soon and I'm going to change out the plugs. Should I go back to stock? Is there any real benefit for me to run anything else? Maybe a TR6?

Jul 20, 2015 | 03:18 PM

93M6Formula

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Are you still on stock compression? If so, leave TR55s in there, they work great in my cam only setup gapped at 0.045. If you bumper the compression over 11:1, then i'd go TR6.

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Jul 20, 2015 | 05:45 PM

warriorcustoms

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From: Oklahoma

For a .035 gap TR5 NGKs or R44LTS for A/C Delco on the bottle & if your off gap em to .040 or .045 I went with the R44LTS plugs after a set of TR55s fouled out with a Fat condition I had to chase down... Biggest reason I went with those is the NGKs that were in stock had the screw on caps instead of solid ones... The TR55s were factory gapped at .065 & in My opinion thats harder on the Ole Opti!!!