go to sparkplugs.com ,they have a plug cross-reference guide.
also an advanced tuners site, you can find all types of plugs for your car
cold to hot- standard to wlid- cheap to expensive.

ROD

That'* true, but would a cracked plug cause it not to fire whatsoever? Becuase all cylinders ARE firing.. I know what the car acts like when it has a dead cylinder, and that is not the case here.

thanks rrounds, I will be sure to check that out .


-justin

Where were these plugs since you bought them? Any chance to rust, etc?

When I got my Bonneville it had the NGK plugs in it, and I had no issues like you described (although it was having a hard time starting up, but no problems after it was going..they were old and rusty). I eventually replaced them with the AC Delco plugs when I did the delco ignition swap, and everything has been great since.

The NGK'* were at 0.060" and the Delco'* are as well.

Hmm, I've never had any kind of issue with NGK'*. This is the first I've ever heard of someone having an issue.

Hmm.. idk. I'm going to wait a little, do some more research and see what I come up with. I'm not sure if I want AC or NGK.

BonneMeMN: Plugs were in the engine, or in the garage. No time to rust, they are all physically fine, clean, all that nonsense.


-justin

It ain't the plugs. Even if they were too cold, you wouldn't know it until you'd driven it daily for 3 months.

With all the work you've done, it could be ANYTHING. It'* pointless to try to blame the problem on any one thing.

You were having detonation problems before weren't you? With so many variables after it was all together you may have had an issue that hurt the plugs.

Brake rotors can get surface rust over night, if you had ur plugs on the bench in a garage that'll do it.

Well, I just pulled one about 20 minutes ago, they are still physically fine. If rust were possible, they'd happen on the old ones. They've been sitting around in the same spot the TR55s were.. and they look fine physically also.

Bill: I'm not sure what you are inferring here. My car runs shitty with the TR55s, and runs good with the ACs. The problem lies in my set of TR55s. Hands down.

Not so much detonation, but the ignition was firing off when the intake valve was still open. The TR55s were only used for about 2 minutes of the engine running. I used the ACs to fix the problem since I realized the problem didn't lie in the plugs/wires. It very well could be I fucked 'em up. I just dropped the rest of my money on transmission fluid, so I am just going to keep the oldies in there for a little bit before I get some more money.

I want everyone who is reading this thread, who has read all this, and can contribute their opinion, on whether or not I should try the TR55s again, or if I should go with the AC-Delcos.. and if I do go with the ACs.. if I should get the stock heat range, or one colder.


-justin

I have gone with AC Delco Platinum plugs that have a guarantee for like 160,000 kms on it or something like that. They are in my Bonneville and in my Malibu, which came from the factory with the Delco platinum in it. I have not had any issues with those, but then again I have not tried any other kind of plug either.