Centrifugal superchargers

[Ziegelsteinfaust]

My friend and I were watching Roadkill garage on his TV. It was the episode where they supercharge the Blue 67 C10 rcsb.

So he made a comment of I should buy a cheap supercharger, and skip the tunnel ram garbage. Plus with my proposed 5.13 gear set I will always on the boost. Then I could sell my 383 stuff, and use a 327 to wind it up higher.

So what happens to your engine if your driving rpm is 2800, and that's where a centrifugal supercharger comes to life? I have only played with the old Wieland 144, and 172 versions. Plus everyone I meet who had a Paxton. It was on a late model car with OD.

Are you always in boost? Or does it free wheel for lack of a better term.

We found some Novi 2000's on CL fairly cheap it got me interested if that is a viable option.

[b454rat]

I don’t know a lot about em either, but they spool up off idle. Will only build boost to a certain point then that’s it. Hopefully someone else can help more...

[burnin oil]

Think of them like a turbo. It takes a bit to get going since it is driven by a small pulley. They can make alot of power but it takes rpm to get boost which is directly tied to pulley size. The advantage is low to no boost at idle. This let's you grab traction from a stop just before the power hits. This made them real popular with the mustang crowd. I don't know of any blow off system that let's them freewheel but they may have them. A roots blower has displacement and pretty much makes power off idle.

[Myself]

A belt driven supercharger looks a lot like a turbo, allthough there is no "lag". It can make instant boost as soon as the throttle is stabbed, more like a blower. Newer versions (maybe old too?) have a one way clutch that allows the charger to freewheel on rapid deceleration. They also have a typical "blow off" to relieve any excess boost on deceleration.
The Yamaha watercraft I service have a SC that uses a one way roller clutch.
The Seadoo Rotax uses a controlled slip disc spring washer pack.
The Kawi's have a belt driven roots type blower!
The older Hondas and Polaris used an exhaust mounted turbo.

[toolboxchev]

Pro Charger I believe is the popular brand now. They are marketed for newer cars and most likely everything else.

Some say spendy but daily driver quality.

[b454rat]

Whipple is still out there too. Still trying to get mine going....