Generation III Internal Engine 1997-2006 LS1 | LS6

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TR55 or TR6

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Old

Jun 26, 2006 | 09:31 PM

#1

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TR55 or TR6

Should I go with a TR55 or TR6 plug?

Mods are LS2 with H/C and full bolt ons. CR will be around 11.0

I was think TR-6... watcha think?

Old

Jun 26, 2006 | 10:03 PM

#2

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TR6...thats what I run.

The tr55 will work...but they will be getting a little bit on the hot side.

100 horse over stock and or 11:1 compression equals a step colder plug.

Old

Jun 26, 2006 | 10:12 PM

#3

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Quote:

Originally Posted by UltraZLS1

TR6...thats what I run.

The tr55 will work...but they will be getting a little bit on the hot side.

100 horse over stock and or 11:1 compression equals a step colder plug.

cool, that's what I was thinking.

I will be 200 horse over stock

Old

Jun 26, 2006 | 11:05 PM

#4

WS6FirebirdTA00

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yep what he said, run the tr6 at a tighter gap between 0.045-0.050

Old

Jun 27, 2006 | 12:25 AM

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Quote:

Originally Posted by viewsonic

Should I go with a TR55 or TR6 plug?

Mods are LS2 with H/C and full bolt ons. CR will be around 11.0

I was think TR-6... watcha think?

Is the TR6 a tapered seat plug or gasketed?? Which type of plug do the heads that you're running now take??

Old

Jun 27, 2006 | 05:06 AM

#6

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I am going with TR-6's as soon as I have the time to install them in place of my 5's.

Old

Jun 27, 2006 | 05:07 AM

#7

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From: Justin, TX

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Quote:

Originally Posted by Gearhead1

Is the TR6 a tapered seat plug or gasketed?? Which type of plug do the heads that you're running now take??

Probably not gasketed.

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Old

Jun 27, 2006 | 09:34 AM

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Quote:

Originally Posted by WS6FirebirdTA00

yep what he said, run the tr6 at a tighter gap between 0.045-0.050

Don't TR6 come pre-gapped at .035"? So they should be opened up to .045-.050?

Old

Jun 27, 2006 | 11:38 AM

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same question

Old

Jun 27, 2006 | 11:40 AM

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If the ls2 head is the same as the ls1 then it's a tapered seat with .708" reach.

Old

Jun 27, 2006 | 12:11 PM

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I run the TR6, ran the TR55's and they were too hot, better safe than sorry, and bring it down a notch.

Old

Jun 27, 2006 | 12:15 PM

#12

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I run the 6's but have been thinking about going with the 7's. does anyone hee run the 7's?

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Jun 27, 2006 | 12:22 PM

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Switching to the TR6 myself.

Old

Jun 27, 2006 | 04:28 PM

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Going 6's here too, 5's a little hot.

Old

Jun 27, 2006 | 08:41 PM

#15

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How can you tell they are too hot??

Old

Jun 27, 2006 | 09:04 PM

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Quote:

ETP GIII cylinder heads require 14mm x ¾” reach spark plugs.

so will TR-6's work ok for my ETP's?

Old

Jun 27, 2006 | 09:05 PM

#17

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BTW TR6 has a .39 Gap

Old

Jun 27, 2006 | 09:38 PM

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Quote:

Originally Posted by Mr. Luos

How can you tell they are too hot??

I have the same question too! How to tell?

Old

Jun 27, 2006 | 10:12 PM

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Quote:

Originally Posted by 00SS4780

I have the same question too! How to tell?

detonation problems? just a guess....

Old

Jun 28, 2006 | 08:17 AM

#20

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I would like to know as well.

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