....yes, Downunder....I agree. You would need increased port timing on the transfer ports,
maybe an additional boost port. A long stroke engine might be the way to go too. With the
additional crankcase pressure involved, a reed valve plate would really be good. Of course
with a rear intake/carb engine, the rear disc valve engine might do the job of holding the
boost pressure in satisfactorily....but a reed valve wouldn't hurt back there either.

The whole question is whether or not the system would overcome the mechanical losses or
not....the electric blower is a good idea.

On a four stroke there is much more time during the 180 degrees allotted rotation time to
charge the cylinder.

FBD.