scshay

hi guys i have a quick question i have a vortec g35 and a wile back i was asking serviceing questions and some of u recomended that i get plugs 1 degrese cooler.
so i bought some and im going to put thim, in they are ngk heat leval 6.
but i was wondering if i need to gap these?
thanks alot guys.

trey.hutcheson

iTrader: (2)

To my knowledge the NGK's come pregapped.

QuadCam

iTrader: (8)

they come packaged at the stock gap.

VIZAGE

iTrader: (20)

I would highly recommend you still gap them yourself. Pre gapped not always 100%. Better to be safe than sorry. Only takes seconds to do.

baileyrx

iTrader: (16)

the tips are brittle & can break very easily!
most will say dont gap

MIAPLAYA

iTrader: (3)

I got a set of NGK Iridium one step colder from Sharif and they were pre-gapped at .039. I just left them at that. My car has been fine.

scshay

ok thanks if i de decide to gap what would i gap thim at?

MIAPLAYA

iTrader: (3)

No less then .035. No more then .044

scshay

ok thanks sounds good

97supratt

iTrader: (61)

You're not supposed to gap any iridium plug because yes they are brittle and will break off.

You can only gap copper and platinum plugs. Personally I wouldn't even gap a platinum plug, only copper.

Barzten1

iTrader: (18)

How many lbs should you torque the plugs when installing them?

MIAPLAYA

iTrader: (3)

I used German spec "Gutentight"

rocks

iTrader: (1)

Close gap helps spark from blowing out in FI. I usually run like a .29 gap, but thats on coppers. Never ever put platinums in a boosted car.

Z1 Performance

iTrader: (564)

You can gap an iridium plug just as easily as a copper plug - just make sure to use the right gapping tool (the disk type works well for these, I do not recommend using the prong type). If you are breaking the electrodes on either type, you're doing it wrong quite honestly. At the very least, inspect the gaps prior to install. While they do come pregapped, sometimes there are inconsistencies and better to find out before they go in