This is the engine I've been talking about. The next step is building a model.
I can't disclose technical information, but here are some interesting facts about it:
Internally oil cooled
Linear rotary design
4 stroke
Integrated oil pump
Cylinder head eliminated
Valves, cams, springs, etc eliminated
Timing chain/belt eliminated
Crankshaft eliminated
Liquid (anti freeze) cooling eliminated
Weighs 4 to 6 times less than comparable engine
Only two moving pieces
If that thing uses internal combustion, and judging from your list of 'specs' and the diagram you linked to, it does, then you are an idiot and should be locked up for your own safety.
I am also working on a high-power high-efficiency motor, I can't release any technical details, but it uses an electromagnetic repulsive force to operate, provided the squirrel is properly caged...