How important are cooler plugs?

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Aug 5, 2007 | 03:59 PM

2002ws-6

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From: Glendale,AZ

How important are cooler plugs?

Im running an sts at #8 of boost. My timing at full boost was 13-14* and at the time I thought I had tr6's in the car. I've always had a high rpm ping/detonation so I decided to sea foam the car. My plan was to seafoam and then change the oil/ fuel filter, and the plugs. Pulled the first plug and it was a tr55. Which I believe is = to the stock plug. So again my question is how important are cooler plugs on FI? Am I losing a few * timing cause of it?

Aug 5, 2007 | 08:57 PM

2000TurboVert

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Cooler Plugs are just a cheap insurance policy.. I dont know if its been PROVEN per say that they are a MUST.... But for 12-15 bucks they cant hurt!

Gap the tr6's @ .035-.036 and your good to go.....

Hope that helps

Aug 5, 2007 | 10:27 PM

2002ws-6

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I ordered the tr6's and am going to put them in at .038" What exactly are the good insurance for? detonation?

Aug 5, 2007 | 10:38 PM

02NBMFormula

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From: Jax, Fl

the spark is harder to blow out so less chance of detonation.

check the gap on all the plus, 1 out of the last 16 i got was off (0.40 compared to 0.35)

also, do youself a favor, 3" swivel (sp) extension for the back passenger plug

Aug 5, 2007 | 10:58 PM

2000TurboVert

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YEAH... Most def. Get the extension!

Aug 5, 2007 | 11:04 PM

2002ws-6

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I've done the plugs a few times now and can do the drivers side in like 5 minutes. The pass side isn't too bad I always buy a new A.I.R. gasket to get that pipe outta the way. Back on track now I know that the smaller gap will help prevent blow out. The tr55 where gapped .038" but what about heat range. I'm just wondering if I should get my car tuned again to see if there is moe timing to be had.

Aug 6, 2007 | 01:16 AM

2000TurboVert

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I dont think theres enough difference for increasing the timing enough for it to matter..

I would just have them for extra insurance..... Less chance of blowing those pistons up!