Which Brand Spark plug do you use?

[HADI-ZR1]

Which Brand of Spark plug do you use??
I dont know how to make Poll. :icon_scra , Z factor may do that!
I run Torque Master [S] Spark Plugs. gap = .090"

http://www.extremespark.com/spark20plug2.jpg

[Paul Workman]

I was trying to run down an intermittent stumbling problem when I replaced my plugs with the platinum AC/Delcos. The stumbling turned out not to be the plugs, however.

That said, I'm happy with the performance. But, I don't think I would go "platinum" again. My research since then leads me to question the value of the longer life touted by platinum in my specific application (read: street driven and no full-out racing to speak of).

Plugs in a street driven car degenerate in a more or less linear fashion - in 3 phases, if you will: At first they are good, then so-so, and then there is that phase where they work but really need to be replaced.

The difference between the standard plugs and the platinum plugs is the length of those three phases...and of course the initial cost. So, I've concluded that the standard plugs are cheap enough and they're easy enough to replace on the LT5 that I can afford to replace them regularly enough to keep the plugs in that "new" phase. (That said, platinum plugs cost about the same as a tank of gas. So, replacing them every 5+ years...is no biggie either way, I recon.)

Different applications dictate different plugs. Those that autocross or drag race a lot would have different ideas than those like me, I'm sure.

P.

[Hammer]

I've used the standard Bosch Platinums in my Chevy's for at least a decade. I was fouling AC Delco's in a Camaro race car with a 461CI BBC and a friend told me he was having the same problem in a BBC Chevelle. He swapped to the Bosch plugs and it went away. I tried them and so did mine. I ran those plugs for over 4 years and never changed them again. Since then, I have used the standard Bosch Platinum's and have never had a problem in anything.

[Aurora40]

That picture looks dubious. That's some crazy stuff if your plug will arc in like 50 different places across it.

I use NGK iridiums.

[HADI-ZR1]

Bob,
this is what my eyes saw in real. you can watch it in video clip too! No Fake :thumbsup:
http://www.extremespark.com/sparkplug-S.O.jpg

[jonszr1]

i have used the ngks , am trying out the e-3 and the new bosch ultimate . both seem to work well