DeTomaso Mailing List: December 97, Message #193
     



From: 	JDeRyke <JDeRyke@aol.com>

Subject: Re:  Spark Plugs

Date: 	Sun, 14 Dec 1997 23:42:57 +0000



Multiple electrode (or divided electrode) plugs were invented in the '20s and

have been used all that time in big radial aircraft engines 'cause they give a

few percent more fouling resistance than single-electrode plugs. No other

discernable advantage. Most folks I've checked say the platinum plugs only

work in CDI or hi-powered electronic ignitions with short rise times and

sometimes not then. At our last tech session, you coulda had two less-

than-1000 mile sets for the price of pulling them outa the dumpster. AC,

Champion and Motorcraft make a perfectly adequate 351C plug, cheaper than the

chrome-plated whiz-bang types, that work just fine. There was an article in

POCA a couple of months back on plugs that listed the ones that fit. J DeRyke