Hey man, sorry, I should have clarified that those are not my pictures. I found them online. Apparently, the "Power-tec" supercharger has been out for quite some time (Power-tec is one of Saleen / Speedlab's corporate partners and the company tasked with engineering and producing the Series 7 Speedlab supercharger). I haven't been able to find any pictures of the rotors or intercoolers and the folks at Saleen are being rather guarded when asked for them.

Speed Factory Cars has been using the Power-Tec supercharger in some of their turnkey packages.

http://www.speedfactorycars.com/debu...allenger-sema/

 

would bet it is based off the same tvs unit that is in the roush, ford, whipple and edelbrock. nice looking unit..

beers

 

Actually, the Power-Tec / Saleen / Speedlab supercharger, like the previous Saleen supercharger, is a twin-screw compressor, as is the Ford Racing / Whipple unit. The Roush and Edelbrock blowers on the other hand are, in fact, Eaton TVS superchargers.

 

if you say so, but i would think that all the above are using the same twin screw tvs design..

look close. the ford racing, roush and whipple are pretty much the same unit...

the edelbrock and the power-tec are the same unit with a intake designed over it and a different inlet for the air intake..

not enough money to be made to afford three different sc types..

beers

 

TVS and twin-screw superchargers are not the same thing. The Eaton "Twin Vortices Supercharger" is still a roots-type "blower" despite the fact the rotors look more like twin-screw rotors than traditional three-lobe roots rotors. A roots-type supercharger is commonly referred to as a "blower" in that it blows a fixed volume of air per revolution into the engine. A twin-screw supercharger, on the other hand, compresses the air within its case prior to it finding its way into the engine.

TVS rotors:










Twin-screw supercharger rotors:

Whipple / FRPP -