NGK's unique V-Power design directs the spark to the edge of the electrode where it develops more rapidly, this increases ignitability even in lean burn conditions. In addition the NGK V-Power plug has all the features of their traditional plugs including corrugated ribs, pure alumina silicate ceramic insulator for greater strength and better heat transfer, copper core and triple interior seal.
NGK traditional plugs are constructed for longer life and optimum performance. Corrugated ribs prevent flashover. NGK uses only the purest alumina silicate in its ceramic insulator which give all NGK plugs greater strength and better heat transfer. Copper cored and triple sealed to further aid in heat removal and prevent interior leakage.
the -11 means a .044 gap, without it you'll get a .031 stock gap which is good for turbo cars.
why is it that you think you need colder plugs? i'm running heat range 7 (BKR7E) plugs at nearly triple the stock power, so unless you're boosted find it hard to believe that the 6's are causing problems.
yea im not sure about the gap ether with nitrous i heard the v tip ngk's are alittle better cause they stay cooler or cool off quicker. thanks for all your help!
One more ? if any one knows .. what timing should i run for nitrous? i know 10 degrees is stock some say to retard your timing but i searched and searched but cant find what timing to run with nitrous..
you will want some sort of nitrous retard box so that it only retards your timing when you are spraying. driving around with it retarded all the time means a lot less power... and its bad for your exhaust valves, cat, etc.