Attention: TDR Forum Junkies 
what would be the coolest is something like on some of the BIG stationary two cycle diesel gensets.
at low rpm, the turbo is driven off the crankshaft through a gearset, and the turbo has a "sprag" clutch. When RPM and load rise on the engine, the exhaust gases take over and spin the turbine shaft faster than the crank-drive spins it, the clutch freewheels.
hmmm instant boost and throttle responce of a crank driven supercharger, and the top end efficiency of a turbo.
at low rpm, the turbo is driven off the crankshaft through a gearset, and the turbo has a "sprag" clutch. When RPM and load rise on the engine, the exhaust gases take over and spin the turbine shaft faster than the crank-drive spins it, the clutch freewheels.
hmmm instant boost and throttle responce of a crank driven supercharger, and the top end efficiency of a turbo.
