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Changing NGK55s

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Old 07-07-2008, 02:58 PM
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Default Changing NGK55s
For those using these plugs, is 15,000 miles a good time to change them?
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Old 07-07-2008, 04:34 PM
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I change mine once a season. 4-5K miles.
Cheap insurance, and I have mine running a little fat, so rather than foul them, I change them.


15K sounds like an average time for them. Somewhere in the 15-20K mark.
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Old 07-07-2008, 05:33 PM
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I change my NGK TR55 once a year unless I am getting ready for a shoot out race or money race I think is going to be a hard race to win.
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Old 07-07-2008, 08:51 PM
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werent the stock plugs alone good for like 80k or somthing? why change them so soon?
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Old 07-07-2008, 08:59 PM
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i change mine every 6k.

they cost like 1.39 a piece and it gives me an excuse to wrench on my car so why not
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Old 07-07-2008, 09:26 PM
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Originally Posted by Tally TransAm
i change mine every 6k.

they cost like 1.39 a piece and it gives me an excuse to wrench on my car so why not

Because every time I change my plugs I lose a pint of blood?

LOL, I change mine once a year as well
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Old 07-07-2008, 10:39 PM
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Originally Posted by Super Speed
Because every time I change my plugs I lose a pint of blood?

LOL, I change mine once a year as well
haha, same here.
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Old 07-07-2008, 10:53 PM
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5-6K ? Thats pretty often.

I usually run them about 15-20K in all my customers cars before recommending a change (thats assuming the car is N/A with a good tune and/or stock).
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Old 07-07-2008, 11:52 PM
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Originally Posted by Tally TransAm
i change mine every 6k.

they cost like 1.39 a piece and it gives me an excuse to wrench on my car so why not
Headers make it so much easier I am ALMOST looking forward to my next plug change haha
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Old 07-08-2008, 06:17 AM
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thanks for the input..
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Old 07-08-2008, 07:44 PM
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yeah i really need to change mine its been almost a year and a half and almost 20k miles. but its still running good
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Old 07-09-2008, 02:32 PM
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Mine have 10k miles and 3 years ..just checked a plug and it looks fine..car is running like new.
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Old 07-09-2008, 02:54 PM
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Not to change the subject, but anybody have any pointers on how to get the damn passenger side ones out???? I'm kindof at an impass there.....
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Old 07-09-2008, 04:36 PM
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last time mine were done they were removed and replaced from the bottom..
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Old 07-09-2008, 08:22 PM
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Originally Posted by Blackhawk777
Not to change the subject, but anybody have any pointers on how to get the damn passenger side ones out???? I'm kindof at an impass there.....
Swiveling sockets, extensions, and ratchets!
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Old 07-09-2008, 08:57 PM
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Might have to give it a whirl this weekend.
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Old 07-09-2008, 09:05 PM
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Originally Posted by Blackhawk777
Not to change the subject, but anybody have any pointers on how to get the damn passenger side ones out???? I'm kindof at an impass there.....
I removed the ignition coil bracket which gave me the extra room....that's when i had the stock manifold. It's alot easier with LT's to do.
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Old 07-09-2008, 09:06 PM
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Originally Posted by Blackhawk777
Might have to give it a whirl this weekend.
Its really not that hard to do but expect blood....Lots of blood.. lol
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Old 07-09-2008, 11:43 PM
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i'm just going to do mine when I re-do my valve seals...

stupid valve seals anyway.
good excuse to just do the **** and be done with it though
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Old 07-10-2008, 12:33 AM
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Originally Posted by fuseone
werent the stock plugs alone good for like 80k or somthing? why change them so soon?
Because they're not as good as the NGK TR55s, especially after 20k-30k miles, nevermind the 100k miles that they're rated for.
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