Sonic

Agreed,  use a PD blower after a large turbo  to pull through the turbo and multiply the boost  when the turbo comes on song for this t
 
for this to work though you'll need a really good intercooler setup for the SC as it'll be seeing hot air from the turbo when that comes on boost
 
that is unless you run another intercooler for the turbo
 
ie ; air comes into turbo - out to intercooler - into throttle then into SC - out through that intercooler - into engine
You'd certainly want a water air setup for the SC at least to keep the air path short and so avoid lots of pipework
 
I look forward to seeing this , with a built bottom end and a GT30 or similar turbo you'd get about 500 bhp and with no lag

a big benefit of damping out torsional vibrations is it allows a higher rev ceiling , increased piston / rod loads and more agressive cam profiles
 
all of which are helpful to increasing performance
 
as most tuned road engines don't do mega miles it takes a long time for a fatigue failure due to excessive torsional  to appear
 
so lets see where we are in 20K miles or so with these lightweight pullies

here you go