What spark plug do you guys recommend for high boost and high octane fuel?

I am having trouble igniting 112 leaded with 33psi on stock 9 turbo.
I am currently using NGK copper brp7es

 

Moved.

 

i would run br8es.

 

how much gap are you running?

 

yea definitely check the gap im running 30psi and it was stuttering a lot going into boost we took out the plugs and looked at the gap compared to new set we put in and you could tell the difference, it might be small but it makes a huge difference. btw i have the Denso IKH24 they are one step colder than OEM

 

what gap do u recommend for his setup?

 

mine are gapped at .023 right now, i would think the same would be ok with the amount of boost hes running.

 

they are gapped at .025
I wired my wastegate shut the other day and tuned it for 110 it ran perfect hitting 350 2byte load. then I went to the track and ran straight 112 in the car and it had trouble firing I then retuned and lost power.

 

Tighten it up to .022 and see how that is and I would go with a fresh set of BR7ES. Save the p for another day.

 

I'll try it

 

Let us know how that works.