Anyone running the TR7 IX or TR8's? Seem like a cheaper option for Denso's...

 

I run TR6IX, KB, 18 lbs boost

 

I have the TR6IX plugs in the Cobra and work great!!

 

I'm running TR8IX for about 9 months, and so far, have a nice smooth idle, and made good power on the dyno with them.

 

I just put the TR6IX's in my truck and I've never had such a drastic change from just plugs before. Very happy with these, I think they're well worth the price.

 

I run the TR6IX gapped at .035".

They burn a little colder than the copper TR6.

 

I have the TR7IX's with a .036"-.038" gap and so far they have performed well but I only have a few thousand miles on them. No idle issues! I am running a 4# pulley with 12-14#'s of boost so I could also run the TR6IX's if I choose. Either one should work fine with a 4# pulley but I would recommend the TR7IX's with a 6# pulley and 14# to 16#'s of boost.

 

NGK TR8IX, 20 LBS boost, Magnum Powers blower.

No issues! These plugs run cold and won't detonate.

 

Are these plugs as tricky to gap as the Denso's?

 

TR6's here with 15lb of boost.

 

Sounds good. I just wanted something colder than the TR-6's. I do NOT like how the BR7EF's perform. I thought the TR7-IX's were are very good option to running Denso's..

 

My TR6IX's all came pre-gapped at exactly .036. I just put them in like that and figured it would be good for when I pulley the truck in the near future. Running super and picked up at least 2mpg. I drive the same routes all the time, and my gauge is moving quite a bit less.

Of course, my old plugs were pretty damn nasty.

 

thanks Bootbox.