Hondata

I like to know the opinion of the people in this forum:

What is the gap you use in the NGK BKR7E spark plugs, for a Turbo application (14.5 psi low boost and 18.5 psi hight boost with a 35Hp N2O shot) in a B18C1 with standard ignition and 95 octane fuel?

Thanks in advance,

I'm only running 10psi on 93 octane and my plugs are gapped 0.028".

Thanks, some else?

I think the BKR7s are not good for your setup. 18 psi + nitrous will melt your spark plugs. Try sth else.

CivicVTi wrote:I think the BKR7s are not good for your setup. 18 psi + nitrous will melt your spark plugs. Try sth else.

I would recommend 8's as well gapped at a start of .028 and take it down from there.

I use the NGK BKR7E by recomendation of a friend-tuner in Florida (USA), for my application 8's are very cold... in example in this moment I'm tuning the low side of my maps because the sparks are very black and the car run very rich...

I'm using a gap of 0.024 now for the BKR7E....

The 7s are recommended from Honda for a STOCK b16 in hot climates or 'fast driving' conditions. How come the 8s be too cold for a b18 with 18 psi of boost and nitrous?

I don't know but when I have in my car a SC Jackson at 12psi + 50 Hp N2O I use the bkr7e and all is very fine...

It could be fine, I can't argue on that. But at least change them VERY often. You can also try the 8s in the summer and see how they perform.

I can trie (in my country all the time is summer )

I change the sparks every 3000 miles

sorry, but those are absolutely the wrong plugs to run. 5671A-8 or bkr8eix are much closer to your application with a gap of .028". the first number will require frequent replacement (3k miles) while the second are rather expensive ($56). if you have ignition problems at that gap you need to upgrade your ignition. if the plugs are black you need to address the tune first.