plug and gap chart

props to tampa!!

 

The Tail end of the 02 Racing Season, then the entire 03 AND 04
racing season ON THE SAME SET OF DENSO IT-22's
Flawless for me, even with a gap of .038 - .040
(remember I have multi spark, that will fire a Gap up to 1.00)

I did crack the porc on 1 the last run of the 04 season, but nothing melted or fell off.

HOWEVER both Sal and Denny DID NOT recommend them for HI
Nitrous applications on my new Built Motor so I currently have BR7's. Although I was very afraid to put them in due to idle prob's I've heard people speak of, my truck idles at 500 RPM smoother than the day I bought it, WOO HOO...........

As for TR-6's, I'm sorry but I tried them, hated them, will never use them again, and honestly do not understand why anyone would use such a hot plug on a built motor ???
1 Zone cooler is not enough for a 4lb pulley IMO
I now have over 20lbs of boost, so it aint even an option for me.

So far I Love the BR7's and have NO complaints, only time will tell..

 

Rob-

whats the agp on those BR7's?

Mr. Torqy

 

NGK tr-6s gapped@ .32 with 4# lower 2# upper and ported blower running a 50 to a 75 shot of nitrous!!!! Jim

 

Jim your a man after my own heart

I shouldn't be so hard on TR-6's, I do KNOW "many" 10 sec beast using them with amazing results, as it seems you have with them,
but I also know that some L's love them, and some DO NOT, mine was one that DID NOT.

 

I have denso's it-22's in my JDM built motor and notice a slight sometimes miss my mechanic said probley a crack in the ceramic in one of the plugs he said it was a 100% plug issue