Focaljet - Ford Focus Forums - View Single Post - New E3 sparkplug with Horsepower TV dyno shootout

**FordFociSHO** · 06-28-2008, 01:08 AM

Gimic and a total waste of money for any application. There is a reason the standard copper core plug has been used for 70 some odd years.

Read,

http://www.eng-tips.com/viewthread.c...=158647&page=1

Unless you are upping the coil voltage, a simple swapping of spark plugs will not create plasma. If that where the case it would mean that the stock plug was absorbing more energy than it was outputting, this could be checked by simple resistance. Unfortunately that is not the case, for if the resistance in the plug where high enough to cut the voltage that much the coil would have gone bad already. Is your coil bad?

06-28-2008, 01:08 AM	#18
FordFociSHO Senior TEAM Member Join Date: Apr 2001 Location: Minnesota, Darwin Posts: 1,731	Re: New E3 sparkplug with Horsepower TV dyno shootout Gimic and a total waste of money for any application. There is a reason the standard copper core plug has been used for 70 some odd years. Read, http://www.eng-tips.com/viewthread.c...=158647&page=1 Unless you are upping the coil voltage, a simple swapping of spark plugs will not create plasma. If that where the case it would mean that the stock plug was absorbing more energy than it was outputting, this could be checked by simple resistance. Unfortunately that is not the case, for if the resistance in the plug where high enough to cut the voltage that much the coil would have gone bad already. Is your coil bad? __________________ Free Factory Service Manuals - click the text for info