Yeah, but Manolis appears to dismiss the need for any kind of post-exhaust port attachments,
from a basic pipe to direct noxious levels of hot-blasting gases & noise away from the operator,
to a combination silencer/power-pipe - to anything heavier/more complex - like a turbo...
He has AFAIR, previously dismissed the idea of E85 fuel, on the basis that any power/cooling
gains were needless versus straight petrol, along with fuel volume/power density disadvantages.
Manolis would only consider a turbocharger useful for altitude compensation & currently does
not envisage any 'flyer' activity much above sea level, at least 'til he's got it proved.
Here's a picture of a 2T multi-fuel turbo-compound aero-engine by Napier, not opposed piston like
their much heavier surface dwelling Deltic turbo, nor a poppet valve engine like a 2T Detroit..