In your opinion what is the best spark plug?
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I've had the OE (Nippon-denso?) for over 70,000 miles. The OEs are platinum. What platinum plugs do you guys use when the OEs quit? I'm not interested in changing plug @ even 20,000 miles!
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I run Denso spark plugs, I like 'em pretty good overall package or durability and performance, sept they 6 dollars a piece for the cheapys and about 13 each for the good stuff.
http://www.densoproducts.com/results...p?aaia=1358546
http://www.densoproducts.com/results...p?aaia=1358546
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Originally Posted by A BAD T/A
I've had the OE (Nippon-denso?) for over 70,000 miles. The OEs are platinum. What platinum plugs do you guys use when the OEs quit? I'm not interested in changing plug @ even 20,000 miles!
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i was under the impression that every 100 or so hp over stock you should be running a colder plug? i couldnt find any tr6s so i got some denso equiv. at lee auto. i may go back to a NGK now. i had 55s before. should i go back to 55s, or stay with a 6 heat range? im NA.
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Kind of an old thread, but am I the only one who is unhappy with their NGK tr55's? When I switched to them from my ac delco's I had KR at WOT appear out of no where and they give off more of a rich smell at idle. I'm ready to pull them and find a replacement. Not sure what yet. Def. not brisk, way out of the price range.
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OK, I bought and installed the "Denso"s last week end and the car runs great! But it did anyway. It feels a little stronger though.
Now my hands and forearms look like I was in a cat fight! I have relatively small hands and forearms and had a tough time getting in there4 to loosen the back bolt on the coil bracket on the passenger side and, of course, #8 was nasty! I do not see how anyone with big hands and arms could even get their hands in there. #8 would NOT turn freely all the way out so it was one click at a time on the ratchet.
Knowing what a hassle #8 was going to be, I did it first! I'm glad I didn't save it for last! Did the driver's side the next day, piece-o-cake!
Now my hands and forearms look like I was in a cat fight! I have relatively small hands and forearms and had a tough time getting in there4 to loosen the back bolt on the coil bracket on the passenger side and, of course, #8 was nasty! I do not see how anyone with big hands and arms could even get their hands in there. #8 would NOT turn freely all the way out so it was one click at a time on the ratchet.
Knowing what a hassle #8 was going to be, I did it first! I'm glad I didn't save it for last! Did the driver's side the next day, piece-o-cake!
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Are the NGK TR 55 Platinum?
I have Iridiums in the car now and I think I fouled them out.
What do you guys think of Iridium plugs?
I have Iridiums in the car now and I think I fouled them out.
What do you guys think of Iridium plugs?
Last edited by BLASTER; 09-10-2005 at 06:39 AM.
#39
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Noticed some good posts on this thread. I just bought my T/A and changed the original plugs that were at .100 over to Bosch Platinums. Now I have allways gone with Bosch just because I have allways used the Bosch platinums on my Porsche 944 turbo and I was making around 15 psi boost which wasnt bad for stock injectors and wastegate.
So considering that I am completely stock right now... is Bosch a good choice for my Trans Am?
I just had to add in that Smilies...
So considering that I am completely stock right now... is Bosch a good choice for my Trans Am?
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I just had to add in that Smilies...
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I LOVE my 30th Ann. TA and my Bosch Platinum +4's and they are in the daily driver and F-150 too. Never had any issues and both cars always start in a fraction of a second and and I have never pulled any KR with my car even up to 29.5 degrees of timing. But I am glad I came in here and found out about the Brisk plugs as that looks to be a killer design. Why would they cause KR though?