Seriously. For years Ive been thinking "why doesnt someone slap a snowmobile CVT on a centrifugal compressor?"
Its utilizing some kind of electronic control, so it could be as advanced as measuring boost, and maybe even compressor speed (optical or hall effect sensor perhaps?), and using that feedback to control speed.
But yes, at the most fundamental level, I believe it is running at a high ratio at low rpm, and then lowering the ratio as RPM increases, keeping the compressor speed constant.
Its like a backwards CVT
Originally Posted by Braineack
you're kidding right?
Im keeping an open mind
On one hand, the turbo isnt putting parasitic drag on the crank or adding inertia to the drivetrain, but on the other hand, without high pressure in the exhaust manifold, the supercharger will have better scavenging and allow for more aggressive tuning.
Im not sure how far these factors balance each other out.
Of course the turbo certainly wins when it comes to cost.