I'm getting a 2.8 pulley for my cobra. I've been told to go with the NGK 7s but I've also seen a lot of people saying to go with the NGK 6s? Is there a real difference? I've heard the 7s run cooler and smoother?
Question about plugs.....
- Thread starter 04RiceEater
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2.76 pulley here and i run tr6 ...part number 4177...gapped at .034 ..works great for me
love my tr6's.
I use the TR6ix, little smoother idle IMO.
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Running the same setup on mine with no hiccups at all
I agree, the iridium would be better. I run the tr6 in my coupe and tr6ix in my vert and both run fine, but I think the vert might have a bit of a smoother idle, never any hiccups.
TR'6s as well here gapped at .034
Ok so I think the iridium TR6s sound like what a lot of people like, no one have the 7s?
TR7's not really necessary unless your running a lot of boost.
Ok gotcha, so the iridium TR6s right? Not the regular ones? What are they best to gap to? Thnx.
I've run both, but what back to the copper TR6's. Nothing wrong with the TR6IX iridium ones. After my car is re-tuned, I may switch back to them. If your just running a 2.8 upper eaton with supporting mods, I'd start the gap at .032-.034 range.
I like the $2 each 6s as I change them often.
Same here ... gapped at 0.024"
That's why I've stuck with the TR6s too. Real cheap to change often and read plugs etc. Plus they run great, no complaints.
Same here. Great plug, change them often as well to keep an eye on things.
01cobravortech
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I've run the NGK TR7ixs for over 60k. Change them about every 10k - 15k. Fantastic plug. I've always subscribed to running the coldest plug possible, that doesn't foul. Have run it with the stock blower and a 2.8 and have run it with my ported blower and 2.76. NGK makes great plugs. And their TR6ixs are also great. Its their TR6 copper ones that always have that annoying stumble. Will never run those again.
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