Dan Ruggirello wrote:

Does anyone have any objections to go with RB's peripheral ported rotor housings for aviation?
Any field data available on their possible performance?  I haven't called them yet to find out.
The more I think about it, for a N/A engine, it just seems to make sence to use this

configuration

to maximize volumetric efficiency- hence BSFC.  Why didn't Mazda use this for production?
Emissions?  Not useful at lower RPM?

Dan

All sort of car problems. Bad idle, emissions, sensitive to muffler back pressure, etc.

Ideal for an aircraft engine. Power Sport is getting 215 HP at 6000 and
in theory if you copy the Lemans porting and tuning exactly
240 HP at 6000 RPM for a two rotor.

Paul Lamar

Paul,  I plan on P-Porting my engine and using the new RD-1C from Tracy.  which means I'll turn
8000 on take off or so.  What will this equate to in horse power?  any ideas.

Tom Webber

Wow! lets see a big bunch. Looks like 326 HP for a two rotor. 
If you cruised at 6000 the bearing loads would be at their minimum and 
the BSFC or fuel burn would be at the minimum provided you had a true 
variable pitch prop so you could run WOT at 6000 RPM. 

Are you working with Jerry Hey. Last I heard Jerry
Hey was making p-port rotor housings. Jerry, hows is the engine
coming? We almost have the dyno done and mounted on the trailer for 
testing so I can tow it up to your place some day soon so you 
can install your engine and run it.

Paul Lamar
 
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