Bobby White wrote:

I'm looking for a power source for my Avid MkIV and am looking into the
possibility of making a one-rotor conversion from a 12A.
 I've learned that it has been done, but haven't secured any further info.
....anybody have any experience in this area?
 I've secured a 12A that I'll soon be tearing down in hopes of re-working.
Thanks for any help.

Several people have built up Mazda one rotor engines. Dave Atkins claims he can do
them.
The problem is they are heavy for the HP unless you go to a peripheral port,
or small turbo and or alloy ending housings. With PSRU you are probably looking at
around 170 to 185 pounds dry weight and less than 90 HP NA side ported. 

Paul Ross at Alturdyne (S.D. CA) gave us an estimate at S&F for a tungsten 
carbide wear surface coated alloy end housing at around $800 each. You will
need two. You would probably save around 30 pounds in that case.

The coating (I think) is applied with a detonation gun which is the best way
of doing it. A detonation gun fires the TC particles at the warm aluminum at
supersonic speeds. Paul Ross implied it was done at Boeing with what he calls a
"B-gun" 

Wankel Gmbh was showing a turbo two rotor of about 100 HP but I don't know
if that is still available. Check with them. Their web site is on the ACRE NL
web site below.
 
Paul Lamar
 
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