Question - Are these spark plugs good for a 91 rb26dett?

**91GTRR32** · 09-03-2011, 01:40 AM

Ngk - bpr7es

Good for 320 - 350 HP?

**evilgtr** · 09-03-2011, 02:35 AM

There's isn't a horsepower rating so to speak on spark plugs, how much boost are you running ? Just running pump gas ? Heat range 7 is a very common I would say it is safe as long as you run the correct gap. I'm running heat range 7 copper plugs in my GTR.

**Gordoskin** · 09-03-2011, 10:38 AM

I need some enlightenment. I thought the plugs were bkr, not bpr. The last time I was at crappy tire, I noticed the bpr looked very similar to the bkr. I am running bkr 6 copper plugs and she runs great. On another note, what do you guys think of those new style of plugs with the 4 prongs instead of just the one?

**91GTRR32** · 09-04-2011, 12:05 AM

I'm not sure they're stock turbos but the previous owner said the boost restrictor was removed or something.... Either or are these good plugs for these engines? People say they deal with copper a lot are they copper? They're silver colored and one curve thing at the top. The original plugs are losing power at 5k rpm so I'm guessing they get too hot. I haven't threw the new plugs in yet to see if there legit or not.