George,

   Do you have any contact info for the ex "Powersport" type PP housings ??.............  

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Kelly Troyer
"Dyke Delta"_13B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold

Kelly,

Not to butt in but I am working with one of the original PowerSport guys and we are going to work out the layouts so we can have the P-ports done CNC. These P-ports are properly sealed, using o-rings, no goo, not welded to the internal steel. Everett Hatch and Steve Beckham work this out years ago and they don't leak. We plan to change just slightly from the original design putting the butterfly outside of the port, but still at the housing face to allow good throttle response. This needs to be available to the guys running in aircraft. We want to make a safe and robust system.

Bill Jepson