i was told by an experienced fbod tuner that i should dump my denso irridiums for ngk tr55s....what do you all think???

 

i wass told the same thing and when i changed my bosch platuim 2 for them ngk tr55's my car missed from idle ran rough,bogged at wot. so i changed them back to bosch and now my car runs like it did b4 like a beast. if i was u try them and see whats up. BTW there very easy to break so watch out!

 

NGK's are the best known plugs...very reliable...

 

There are a few threads about spark plugs.... Opinions vary.... Search and you will see.....

As far as the best???? I personally dont know, they all seem to work for me.... But I can say, that AC plats do loose their puks and Bosch +4 only hit on 2 eletrodes, from my experience.....

I just use NGKs now....

 

Been using tr55s for quite some time now, they work great.

 

The AC Delco's have been redesigned not to loose the plugs. The plugs are wider and seem to be directly molded into the electrode.

I like the NGK TR55's, but I think lots of plugs will get the job done.

Dan

 

I can't complain about my NGKs TR-55s, they work great and are cheap. Granted the copper conductors require quicker interval changes, but I like to change plugs on a yearly basis anyway.

 

TR-55 user with my LE2 setup, no complaints