Another NGK TR-55 Spark Plug Gap Question

[Mesterious]

I have NGK TR-55 V-Power Spark plugs for my 02 WS6 and I'm going to put them in with Full exhaust and a lid. Well I looked at many threads but I have just got mixed gaps. I have read that some people say the best is .55. Some people say .5 is the best. Some people also say .45 is to low but some still like it. Well how would either one make a difference? Which one would be better for me?

[Cutlass]

.55 is way to much....thats more then 1/2 inch
For your lid and exhaust mods, anywhere from .045 to .055 is fine. You won't really notice any difference. I set mine to .050"

[Mesterious]

.55 is way to much....thats more then 1/2 inch
For your lid and exhaust mods, anywhere from .045 to .055 is fine. You won't really notice any difference. I set mine to .050"

I don't what I was thinking. Lol

[Cutlass]

Super easy typo that I make all the time...

[Mr. Luos]

.052"

[Smittro]

Iridiums come pre-gapped...

[natews6]

I always buy plugs that are pregapped or don't need gapping

[Mr. Luos]

Should ALWAYS check the gap.

[Smittro]

Should ALWAYS check the gap.

Except 4 iridiums. They instruct you not to bend the electrode due to damaging it..

[mbrownin]

The AC Delco iridiums designed for the LS1 come gapped as .040. Good or too narrow for mostly stock?

[Mr. Luos]

Except 4 iridiums. They instruct you not to bend the electrode due to damaging it..

Another reason I don't use them then.

[Cutlass]

Except 4 iridiums. They instruct you not to bend the electrode due to damaging it..

you can check them without bending them

[Cutlass]

The AC Delco iridiums designed for the LS1 come gapped as .040. Good or too narrow for mostly stock?

They work good for mostly stock

[pajeff02]

.052"

I swear you posted .054" in the last thread that asked this question. Now I have to pull all my plugs and set the gap down by .002".


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http://www.ls1.com/forums/showthread...highlight=.054

[Smittro]

you can check them without bending them

Oh I know. They're all I use I worded it wrong but they do come with gap protectors

[Mr. Luos]

I swear you posted .054" in the last thread that asked this question. Now I have to pull all my plugs and set the gap down by .002".


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http://www.ls1.com/forums/showthread...highlight=.054

I changed my mind.

[pajeff02]

I changed my mind.

Ok.

[JayTA98]

.050 here. Is the only gap that had work fine for me.

[Mesterious]

I gaped mine at .050 and car is running strong! Thanks everyone!