Anybody see the segment on Trucks on spike tv sunday? Banks had a turbo for diesels that could countrol the flow on the hotside electronically with accuators. Basically it let a huge turbo like a t51kai spool like small turbo and then as rpm's increased it opened for full exhaust flow and made the big numbers. Think it'll catch on and someone make a system for our cars? Be awsome to run around with a huge turbo and almost no lag.

 

Are you referring to the VGT turbos the variable geometry turbo. Basically has "vanes" inside the ehaust housing that are hydrolically controlled.

 

VNT and variable vane turbos have been around for awhile.