<<  I use the racing plugs NGKR6725-115. Find a cold or similar plug on

a heat

 > range chart. Run as cold a plug as will remain clean in your engine.
 >
 > These are retracted gap. Very cold heat range, wire electrode. I use

the

same
 > plug all year.
 >
 > Many dirt bikes have to run very cold plugs, and those cost far less

than

the
 > nucs at $25.00 each.
 >
 > Lynn E. Hanover
 >
 > Loss of electrode material would suggest too hot a heat range.

I should have added that I have no aircraft application. This is

information

developed from years of racing the rotary. A hotter plug may run longer
without fouling should you be forced to use aircraft fuel.

Lynn E. Hanover

If you need a hotter plug to burn aircraft fuel (on occasion) but hotter
plugs don't hold up, what about using an Iridium plug such as the
ngk-BPR7EIX?

Del Johnson

 
The Rotary Engine NewsLetter.  Powered by Linux.
ACRE NL web site. http://home.earthlink.net/~rotaryeng/            
Copyright 1998-2004 All world wide rights reserved.