Just a thought from someone who has not had a chance to work on a Wankel, if
you are trying to keep heat out of the rotor, have you tried the cermet
coatings used on piston tops.   The racers use these coatings to keep the
heat in the exhaust, and the I've had good results using them on an old

flathead to keep the load off the cooling system.  I've coated the
combustion chamber side of the head, piston tops, and combustion chamber
side of the valves.

There are also metal spray coatings that would work that are used on turbine
engine parts, but these are much more dificalt to apply, and much more
expensive.

Rick Diekman

Hey Rick, I am currently coating my motor. I have had extensive experience with these coatings

in

many engines. So far the 13B Turbo motor will be together in about 3 weeks for break in. Once

it

is broken in I will finish the coating of parts and dyno testing will begin. I am currently

using

Techline coatings except on the rotor faces. I used Techlines' CBX pretty religiously but

found a

new coating for the rotor faces from a different manufacturer that does not have any aluminum

in

the coating nor does it have any ceramic. It lowers the heat retention. It sprays thinner and
there is no clearance problems with the materials. I will keep all informed!

  Are you coating the side housings with the CBX.

  Ken Welter

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