Is anybody using COPPERs on a rb26?

[Pawley]

I've read about all the people using copper spark plugs on the rb25 engines, and am tossing up whether to do the same with the gtr engine. If so what are the part numbers on the plugs??

At the moment there are platinum plugs which look pretty rooted. Car is running 1bar and exhaust mods.

[Zahos]

copper platinum, WHATEVER they are, it makes no difference to performance! Do a search and you will find sh1tloads of threads on this topic! Only thing is coppers dont last as long! But anyhow, I know I'd rather use coppers, coz if u are going to pull plugs out every 10 - 20000K to clean them (as you do with the platimuns), then you might as well change them! If your not using coppers, then your wasting your money!

[Pawley]

my theory exactlly.

yet trying to find part numbers for the plugs is seeming near impossible.................

[ph1]

yep, used to have coppers in my engine. but recently went back to iridiums.

10,000 change for coppers is a bit high, i found they started to go to shit after about 3500->4500 klms.

part numbers are:

NGK-R BKR7E, BKR8E, or BKR9E

cost is usually just under $4ea, repco etc should be able to order them from ngk melbourne for you.