ChefJ

I have bkr78 spark plugs for my turbo application. I am running at around 10psi. I pulled the plugs and noticed some wearing into the electrode part of the plug right in the center shaped like a small V. I immediately replaced all 4 and am going to pick up some other iridium style plugs today. Obviously this is not normal but what condiditons would be causing this??

stphotographer

Are these the NGK copper racing plugs? They are designed with a V-Notch in them from the factory.






http://www.superhonda.com/forum/showthread.php?t=129793

Honda_mann

keep copper plugs in for boost..... you need more of an area(electrode) to comsume the heat produced in there.....

iam7head

are you using the bigger copper tip "v power" plugs?

fperra

Moving to FI.

TheCarGuy2021

My NGK 7173 plugs have them.

ChefJ

yea they are the bkr7e plugs. I just went to summit and picked up 2 sets of 7173's and I'll put them in this weekend. The v notch is supposed to be there. Flame away, but I thought it was running way to lean and burning the electrode.

TheCarGuy2021

Can never be too safe!

Slows2k

All NGK V-power plugs have them. that's why they are "V-power"

mase1

this isnt true.


while i often run copper plugs on many of the cars i tune due to how inexpensive they are and being very effective, iridiums are very decent as well.