Ive seen some pics of a turbo without the exhaust bits. This is then hooked up to the engine belts and basiclly uses the RPM from the spining engine belt to turn the turbo shaft.
I dont know if you can call this a supercharger cause the supercharger pics look much larger.
So just what is this system called and what kind of RPM and PSI can we expect to see. Considering the Turbos RPM is limited by the belt speed.
How does it work.

 

Wow where did you see that at. Sounds like someone got bored and wanted to just try something new. Not sure if it would work or not really. Good question though.

 

centrifical supercharger.

 

the guy had it on a maxima if i remember rbght. it wasn't a big compressor like a contrifugal. it was like a t3. he said 5psi at the most.

 

I remember seing the maxima, yes, he used a t3 with some modifications to use it as a supercharger. Are you talking about a system like the vortech supercharger?




These are all centrifugal superchargers

 

dont turbos spin at like 100k rpm? that would be kinda fast for the crank to spin, you would need a huge *** crank pulley and a tiny one on the turbo... sounds weird, it was prolly a centrifugal

 

I know the vortech superchargers are gear driven. Getting high RPM with the right gearing would be easy.

 

The idea is tempting cause there would be no turbo lag.
Speed can be controled by Gearing or pully size.

 

it's been said that centrifugal superchargers are the worst of both worlds.

there's still lag, but it's much more consistant since it's tied to a preticular engine speed instead of exhaust flow. it doesn't matter if it's part of a turbo or a supercharger, centrifugal compressors need high RPM to generate boost. if the vortec engineers had geared the turbine to develop boost at low engine RPM, it would end up spinning insanely fast at high engine RPM. so, they're forced to use slower gearing, resulting in minimal low-end gains - the whole reason you would use a supercharger over a turbo in the first place.