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Jan 6, 2009 | 03:24 PM

94-lt1

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From: Cape Girardeau MO

what plug

what plug should i run in my 94 z28 with a cam and vortech supercharger with 6-8psi

Jan 6, 2009 | 04:01 PM

ss.slp.ls1

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From: Orange County, CA

I've been running NGK TR55 plugs in all of my engines. I am happy with them. You'll have to research the optimum gap setting though.

Jan 6, 2009 | 04:17 PM

djjab57

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i just awitched to the NGK TR55 today, all ive heard is praise about them so i went with them

Jan 7, 2009 | 02:44 PM

94-lt1

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will these plugs work for a boosted car

Jan 7, 2009 | 02:46 PM

Ihasfip

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From: Georgetown, Texas

My buddy runs TR6s gapped at .036 .Thats 8psi on a 5.3 though? Don't know if that helps?

D

Jan 7, 2009 | 02:55 PM

RamAir95TA

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I've always understood that TR55s are fine for N/A, but the tighter gap on TR6s is better for N20 and boost to prevent the spark from blowing out.

Jan 7, 2009 | 02:58 PM

connexion2005

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I run tr6 gapped @ .035 for my 12.1 compression. I plan on using them with a 100 shot soon as well. I would run them for boost also since they are a colder plug and better for detonation...

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Jan 10, 2009 | 11:02 PM

z28matt

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+1 ngk tr55

Jan 11, 2009 | 03:34 AM

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koolaid_kid

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From: Indianapolis

For boost, it is recommended to go one heat range colder, which is the TR6. And close the gap to 0.035.
Been working for me for 4 years now; pulled the plugs this fall and they looked excellent.

Jan 11, 2009 | 09:42 AM

#11

moehorsepower

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From: Texas

Quote:

Originally Posted by 94-lt1

will these plugs work for a boosted car

Will they work? Yes...Should you use them in a boosted application? No.. Go with TR6 if you have stock ignition, then close up the gap a little more or you could possibly get spark blow out....

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what plug

what plug

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