misfire or pinging?

**oldcorollas** · 12-03-2007, 12:05 PM

fwiw..
stock non-turbo motors use 5's in NGK. more built NA maybe 6..
some turbo motors use 6 stock? and 7 is getting cold...

**-==L=a=N=c=E==-** · 12-03-2007, 12:09 PM

*shrugs* which ever way its gone its made the difference. I'll pull a plug out tonite to double check exactly what i've just chucked in there.

**chris davey** · 12-03-2007, 12:23 PM

Didn't know that about NGK and bosch. Well I have NGK 7's.

Yes, stock 1jz plug is NGK 6.

**Aust162** · 13-03-2007, 05:04 PM

ngk 6 is colder than an ngk 5. etc.

edit: didnt read cruzida's post

**stradlater** · 14-03-2007, 09:59 AM

So what the hell is champion then? I went to a repco, and bought champion replacements for my NGK plugs, and I was given champion "C9's" which was vastly different from the NGK 6's I had.

**-==L=a=N=c=E==-** · 14-03-2007, 11:24 AM

**-==L=a=N=c=E==-** · 14-03-2007, 02:24 PM

so going from the above picture, i've actually gone one step colder.

Suits me either way.

I just took the boss for a ride in the Ute, and his well impressed either way... hahaha

**Forcefed6** · 14-03-2007, 03:00 PM

Originally Posted by stradlater

So what the hell is champion then? I went to a repco, and bought champion replacements for my NGK plugs, and I was given champion "C9's" which was vastly different from the NGK 6's I had.

I use Autolite "3923" in my 1G without a hint of breakdown. If I recall they were just a direct replacement for the originals. They have a heat range of 6 (ngk)