As I was learning about these motors this past summer and reading posts on here about big turbos beeing great, but with the need for huge stall, I was thinking..."wouldnt it be cool to develop a variable nozzle on the turbine inlet to speed up the air at low RPM and keep the turbo spooled, and then open up the nozzle at higher RPM to get rid of the restriction?"...Fast forward to this week. The company I work for was just aquired by Honeywell corporation, and as I'm surfing their site I see their automotive division (including Garrett Turbo) has just such an animal. see the link. I guess I'll have to ask for my employee discount
Honeywell
Honeywell