What is possible to make a two-stroker to do?
A two stroke racing engine 125cc may develop 85-90 hp @ 11500rpm. If we can translate this pr cc to an aero engine of 30cc there should be more than useful power available. Of course such an engie will not be everybodys favorit. The engine will be re-ported, re-designed cyl top and matching tuned pipe to send a plugging pulse back to the sylinder for max trapping of fuel and air. Such engine will probably have a BMEP of 11bar.
To increase a standard engine BMEP from about 4-6 bar to about 8 bar an increase in hp may be expected to around 0,8 hp and more from 4 bar. This increase will probably make such engine more difficult to use and may not be everybodys favorit, all depending on porting, pipe design and cyl top design.

AND

Such engine will be hellish noisy. I would not be surprised that one will be well over 100+dbA or more.

Regards