I understand I'm a noob to the forum. But I think this could make supercharging a rotary much easier. It's been around for a couple of years so I don't know if it's been discussed or not.

Here's the company website

http://www.antonovat.com/

Here's another forum with a dyno chart showing the torque curve of a mustang supercharged vs. two-speed.

http://forums.nasioc.com/forums/show....php?t=1120206

A bunch of people online were saying how bad it must be when the boost drops-but the thing is that is a centrifugal supercharger which builds boost. The way I understand it a roots or twin screw the boost is relatively flat. So would putting just the drive (http://www.antonovat.com/example_app...ntent.asp?s=45) onto a roots or twin-screw (preferably twin-screw) produce a less noticeable spike in power?

Ok-here's my train of thought. A rotary likes RPMs. Superchargers can only go a certain RPM. So if you can change the speed of the supercharger you can build more power in the lower RPMS, and change it to a lower speed before it explodes. Correct me if I'm wrong here-but it seems perfect for a high RPM rotary. You get the low end power you need, and the supercharger doesn't pull as much in the high rpms reducing paricitic loss.

I know my explanation is a mess-but I think I could be onto something here and I wanted someone to correct me before I get too far...

 

I remember reading about something similar (may have been the same thing) in Motor Trend. The same tech can be applied to anything with a pulley; for instance if an alt performs best at a certain rpm, and is a drag at others, this thing could adjust for that and make it run optimal, reducing drag on the engine. Or something like that.

 

nice, never thought of that

 

Two speed superchargers have been around for years. I know at least as far back as 1949, when one was used on the BRM P-15 formula one racer, which was powered by a 1.5 litre v-16 turning 12,000 rpm and making 70 lbs of boost.

 

I always thought that with the V belts on an FC, it'd be perfect for a CVT on a centrifugal blower, so that there's no drop in power like that, just smooth all the way to the top.