[Driverswanted]

Just looking at my future swap. The VW "fred's page" site ( http://forums.tdiclub.com/showthread.php?t=166946 ) shows Diamler is going with Mercedes' 2.2 L twin turbo and will create some awsome HP and Torque for the very little motor weight. Just a dream. i'm sure the electronics would make this very dificult to do.

 

[Dougal]

I think PSA-Ford have the same twin turbo system on a small diesel for production much sooner than that.

The twin turbo system they had on the 535D was all powered by wastegate or vacuum actuators. It may be completely pneumatic/mechanical or there may be electric solenoids switching the air pressure on and off.
It produced around 45PSI boost.