Anyone know anything about Denso Iridium Spark plugs and how they perform with a NX kit in our cars? I got the 2 stage colder Plugs ( IKH 22 ) sitting in my room and want some feedback before I throw them in. How are they with and without juice? Will I be slowing down the car and actually doing harm to my car by throwing 2 stage colder iridium plugs in my car when I'm not juicing? I am currently running a NX wet kit and can use any information regarding these iridium plugs.

 

with the two step colder you will notice a small... few horses, difference in power, but no worries about the engine it should be good.

I am about to install my denso iridium one step colder with my NX wet kit... i am only going to run about a 100 shot to be able to get into the 12's.. and i'll be good.

Good luck, and keep us updated!

Peace
-Eric

 

spark plugs dont make you lose hp, unless they are fried or dirty. its only 2 steps colder then stock so the difference will be very suttle. if you were going something crazy like 4 steps colder, then you'll have issues at idle.

im running 2 step colder denso irridiums now. i cant say there is a difference at all when im not on nitrous. the car was a bit choppy at idle to begin with, and there really is no difference with the 2 step colder.

i have the nx kit too.

 

Thanks a lot. I think I'm going to throw them in today.

 

What should they be gapped at for a 150HP shot to the rear wheels?

 

I am using NGK Iridium IX (1 Step Colder). 100 Shot / Zex. Have had great luck with them.

 

I have mine gapped at .028 and it works fine.