3.5L Two Step Colder NGK's
 

Because of the spark plug change for the 3.5's it is only possible to get 1 step colder NGK copper plugs. This hasn't changed.

NGK now recommends their new Iridiuim IX plugs for nitrous applications and a number of Z guys have been using them successfully. They have finally started making one 2 steps colder which has just become available.

Part # is 2309 for the LFR7AIX-11. I had to call the head office and get them to pressure a dealer to order before I could get any action but I should have them next week. I am going to my next race on Oct 10 and will try them out and report back.

http://jime.homeip.net/maximase/NGK.jpg

Awesome, I'd love to hear how it goes.

Update on the plugs.

Installed them last week and went to the track yesterday. Ran N/A all day and ended in 4th position but blew it myself wasn't the car.

Remember these plugs are 2 steps colder and I am running N/A.

I ran my quickest N/A time 13.531 and my first sub 2.0 60' which was a 1.98 so they definately work. Next weekend I may try it with the spray and see how it goes as well as a couple of other small changes. Also yesterday I didn't bother to put on my lighter rear tires and ran with the stock muffler.

great info jime, i will loook into those