Has anyone had any experience with this type of supercharger?

I just heard about it from a friend, and skimming over some web pages it seems like there might be some potential...

http://www.whipplesuperchargers.com/homepage.html

 

I'm not going to speak for the future but, in the past and right now even whipple has only done american car engines...

 

The NSX supercharger sold by Comptech is a Whipple.

 

A Whipple is a Lysholm compressor. Used on the Mazda Millenia and I think on some new AMG Mercs.

A Lysholm compressor uses internal compression versus the external compression of the Roots style. This makes the Lysholm more efficient than a Roots blower even though Eaton Roots blowers have narrowed the gap.

However, since a Lysholm is an internal compressor it can not be easily "turned off" while cruising like the Eaton blowers with their vaccum actuated bypass (this was true the last time I checked). If the compressor runs 100% of the time fuel efficiency drops drastically. Usually a Lysholm bypass is similar to an A/C compressor in that it uses an electromagnetic clutch attached to the compressor pulley. There are other bypass methods but they are complex.