I had brief conversation with them last fall and they designed the gearbox with the intention of offering higher horsepower options:

"We do have plans for a higher horsepower engine.  When we designed our gearbox we intended to do engines to about 225 hp from the start.

Our intent is to do a 155 hp normally aspirated 2 liter and a 200 hp turbo version"

I did not mention a rotary engine specifically though.

Jay

On Mar 20, 2017, at 5:31 PM, Charlie England <flyrotary@lancaironline.net> wrote:

These guys have been advertising on ebay for a while. I have no idea about whether they are legit, or whether the drive is suitable for a rotary. The web page claims 'good up to 225HP', but their target installations are closer to half that, so....

http://www.aeromomentum.com/partslist.html

Charlie