I'm taking the intake air from around the side of the gearbox, through
its mounting plate.  The flywheel will have an impeller attached to it.  
I built a fiberglass shroud to enclose the area between the gearbox
mounting plate and the engine.  Intake air is taken from this
centrifugal pump.

I admire the creativity and effort, but I see big question marks. My only
point of reference is a large furnace type centrifugal blower which
generates maybe 1/2" HG pressure.   And how is this approach going come
close to the efficiency of a well designed supercharger.

I've been wrong before; so go ahead - shoot me.

Al