Engine and Transmission Tech

tips, technology, tools and techniques related to vehicle driveline components

Go to Thread: Previous•Next
Go to: Forum List•Message List•New Topic•Log In


roverman
Art Gertz
Winchester, CA.
(3188 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Surface gap spark plugs ?
Posted by: roverman
Date: August 14, 2012 11:19AM

As advertized in JC Witney,"not an endorsement". Anyone used these ? Results ? David Vizard says conventional plug, at or near center of combustion chamber, is worst for emissions, and power because of "crevice volume", side of piston, down to first ring. roverman.


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6470 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: Surface gap spark plugs ?
Posted by: BlownMGB-V8
Date: August 14, 2012 02:15PM

Apparently they were common in Mercury two stroke outboard motors. Possibly for anti-fouling reasons.

Jim


Go to: Forum List•Message List•New User Registration•Log In
Sorry, only registered users may post in this forum.