I'm not clear whether Don has p-port intake or not, and whether he is
     against p-port intake.  If so, I don't really see p-port as being high
     risk at all, and might actually improve reliability by lowering
     temperature rise when boosted for a given horsepower produced by
     lowering pumping loses.

     As Paul has said, all rotaries until the Renesis already have p-port on
     the exhaust side..


     Matt-


Matt,
I don't have P-Port.  I thought about it briefly but then started to shy
away from that idea when I heard that the idle is rough and unreliable
and that it is much louder.  I would like to retain as smooth an idle as
possible while keeping the noise level down.  Although I don't mind some
brap-brap idling, I mainly don't want the engine to stumble and die when
pulled back to idle.   Honestly, I still open to ideas here. Again these
are my goals:  "I would like to produce a consistent 350 hp that
is maintained to 18K ft. altitude, but still idles well and is
not ridiculously loud. "  I want to accomplish this goal in the most
reliable and least stressful way on the engine.  I'm open to suggestions.
Thanks,
Don

I am willing to bet if you idle an engine with a 2.85:1 gear
box at an engine RPM of 700 and a prop RPM of 246 the prop will act
like a giant drag brake and your approach angle will approach 90
degrees :) I am only half kidding.

Those that are flying, what engine RPM do you use on approach?

Paul Lamar