Best spark plugs for the LS1?

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Aug 24, 2004 | 02:22 PM

Logic

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Best spark plugs for the LS1?

I recently bought some plugs for my car. I didn’t do any research before I did so I guess I might have just thrown my money away. I bought the Splitfire plugs for about 5 dollars a pop. I looked up some other plugs today just for the hell of it & I see there are a lot more to choose from online than at the local parts stores. So I wonder what are the best plugs that I could put in next time I change them out?

Aug 24, 2004 | 02:31 PM

Billfold

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I just bought some NGK TR55's, that seems to be the consensus to the "best" plug for N/A cars

Aug 24, 2004 | 02:34 PM

The Alchemist

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The question then is, TR55 in the Iridium or regular copper?

Aug 24, 2004 | 02:46 PM

Billfold

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I just bought them yesterday, so I should know this. I believe they said that they were copper. Oh, get them from Oreilly's, a set of 8 only cost me 12.90.

Aug 24, 2004 | 02:54 PM

audiopro

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Spltfires are junk. Take them back and get the NGK's..

Aug 24, 2004 | 03:02 PM

16nrollininaws6

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Yeah the TR55's gapped at I believe .045 to .050. That should do it.

Aug 25, 2004 | 09:12 PM

LS1SS4ever

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TR55 Iridium better

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Aug 25, 2004 | 09:40 PM

99'Formula

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yup just put in some TR-55's in yesterday gapped at 045. So far there great.

Aug 25, 2004 | 11:02 PM

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00ls1

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i have tr-6's and i like em

Aug 25, 2004 | 11:22 PM

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cyphur

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tr-6's are usually used when spraying

Aug 25, 2004 | 11:44 PM

#12

99'Formula

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Quote:

Originally Posted by cyphur_traq

tr-6's are usually used when spraying

or blower

Aug 26, 2004 | 04:29 AM

#13

Patman

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From: Mississauga, Ontario

Quote:

Originally Posted by 99'Formula

yup just put in some TR-55's in yesterday gapped at 045. So far there great.

If you want to gap them that low, the TR5 is the better choice. It's the same heat range as the TR55, but it comes with a gap of .039, so you don't need to change it by as much. Going from .059 (stock gap of the TR55) down to .045 is not recommended by NGK. They generally say to go no more than .008 to .010 change, as it'll make the electrode to ground relationship not so perfect anymore.

PS-that's my old Formula in your avatar.

Aug 26, 2004 | 05:50 AM

#14

Lunchbox01

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From: Stationed at NAS Whidbey Island in Northwest WA.

plugz

What about just using new "stock" plugs, you know the delco ones?

Aug 26, 2004 | 10:45 AM

#15

99'Formula

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Quote:

Originally Posted by Patman

PS-that's my old Formula in your avatar.

Thats awesome thats the same color as mine and everything.

Aug 26, 2004 | 06:51 PM

#16

Patman

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From: Mississauga, Ontario

Quote:

Originally Posted by Pinoyracer_18

What about just using new "stock" plugs, you know the delco ones?

They suck! The platinum comes off them easily and their gaps open up too much too quickly. I just pulled out the stock plugs in my C5 and they had under 33k on them and they were in terrible shape. They were causing 7 degrees of KR! Changing to fresh plugs (in my case NGK TR6s) put my KR back to zero.

Aug 26, 2004 | 07:43 PM

#17

Logic

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How much do the TR6 plugs run ya?

Aug 26, 2004 | 08:16 PM

#18

Colonel

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From: Troy, AL

I'm going with TR-55 iridiums this go 'round. They should perform about as well as copper plugs while having much better longevity.....that's the idea anyway. We'll see.

Aug 27, 2004 | 04:14 AM

#19

Patman

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From: Mississauga, Ontario

Quote:

Originally Posted by Logic

How much do the TR6 plugs run ya?

They don't cost much at all, only a couple of bucks each.

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Best spark plugs for the LS1?

Best spark plugs for the LS1?

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