ORIGINAL: earlwb
Their problem is that the 4 stroke engine needs to be modified for the supercharger, plus the supercharger has to be made for a specific engine displacement too. Glow engines tend to be more finicky in this way. So they never went into production with it.
ORIGINAL: SrTelemaster150
I would mount the engine horizontally W/the blower sticking out the top of the cowl. Make an old school scoop for the carby.
Put a 180 pot on a 150 crank in a 150 case for 1.71 cu in @ 7.8:1 CR & throw the boost to it!
Hey Earl, a low compression FA171 like I metioned above would work & I don't run glow ignition anyway if i can help it.
Also, as long as the design displacement is close, couldn't the drive pulleys can be altered for a little more volume?