I have searched and there are just too many different plugs that people are using. I am going to be running a maximum of 12psi on my pfab/ custom turbo setup...it has a log manifold so im guessing 400whp will be the maximum that im gonna get out of it. I was thinking a NGK V-Power copper plug thats 2 heat ranges colder, what plugs are you guys using? THANKS!!!

 

ngk r bkr7e

 

my Greddy plugs are $80.00..............way toooooo much

These were recommended to me, by Courage.

http://www.sparkplugs.com/more_info.asp?AAIA=&pid=3252

They ARE SO MUCH cheaper, only thing is they are Copper, I dont mind changing them more often (every oil change), but would I be better off sticking with Irdiums, or do they just last longer?

I will be getting tuned wit the METH in NOV so I will have my plugs in by then

 

r those the non-resistor ones?

 

Get the NGK BKR8EIX.

NGK Iridium plug, resistor type, one heat range colder than stock (8).
They cost around 7-8 dollars each and i use them and really like them.




Whatever you do dont get Denso iridiums, they are horrible.

 

I step colder should be fine.

 

pre-gapped, if not how do I gap irdiums, and what gap?

 

They should be dead-on .030, just gauge them to be sure. If you do adjust them, DO NOT even touch the tip. Iridium is hard, but it's super brittle.

 

Unless you are using a tubular I would think you are going to be around 350-375 hp at 12 psi.

But I hope you hit 400!

 

this is the ngk v-power copper plug correct? If so, thank you!