What kind of plugs are you guys running? For 1 step colder. I'm having trouble finding an NGK,copper, and 1 step colder.

 

check my link in my sig

 

Would it not have been easier just to type LZTR5A-13? Those are not one step colder anyways, they are stock heat range.

To the OP, LFR6A-11 is what most use for 2.4 boosted apps. They are one step colder and copper.

 

Guys are having success with these? I just looked them up and they appear to be about 1mm longer than stock. Do you run them?

 

That is something I never noticed until now lol. These are the plugs pjk91 and beck told me to run and they have held up fine in about 28k that I have since going m62. I put a fresh set in at 20k and the electrodes looked normal, but the gap had widened from .038 to about .041ish in those 20k miles. Apparently that 1.0mm extra reach is ok.

 

well there are a few kinds...

one is the cheap route.. champion 430 530 or 420s they're from the srt 4 neons, or hemi trucks these are copper plugs


and the others are whats been posted so far .. i have some iridium but i can't remember the part number off hand

 

I have tried the lfr's and was not impressed, having better luck with the lzt's on 14 psi.

 

Cool, ill have to give them a try then. I'm assuming they'll be fine for 2.2s as well since they both run the same size plugs stock.

 

i got the autolite iridiums from zzp

 

Still running LFR6a-11. gaps open over time.

 

I didn't realize these were one step colder. This is what I'm running on my 2.2 LAP setup. They are fine.