I thought it would have a seal and spring and a worm drive motor. Have you seen the internals ?

 

There's no spring. The motor is used to position the gate where the ECU wants it for a certain boost level.

 

Be interesting to hear how these respond. Just had an inconel 9 blade turbine put into my Evo 9 turbo with a Garrett 58/76 11 blade comp.
Won't be changing that for some time.

 

They respond very well. A lot of manufacturers are already using them in OEM applications.

 

Just bear in mind that these units are usually 48V systems..

 

No problem there, just slap together a 48v battery pack and a boost converter to charge it and your good*.

* Obviously not the easiest thing, but certainly doable. Also probably an alternator upgrade.

 

Cool technology, but I don't see it coming to the aftermarket any time soon. Will be great for OEMs, though.

Garrett has produced variable turbine geometry turbos for a long time, but we don't see anyone using them in the aftermarket world.

Even simpler turbo enhancement strategies like quick spool valves haven't seen much uptake in the aftermarket. BW teased some QSV turbos for a while, but I haven't heard any progress on those.

 

I think the reason is really simple.. most of the aftermarket just chases big numbers... so no real idea about getting quick transient response or good spool... hell I read all the time that slow spooling turbos are great for protecting the rotating assembly..
Racers do care, but they often run anti lag so no need for complicating electric turbos there..

BTW I drove one of those new diesel audi SUV monsters with electric 48V turbo helpers but wasnt overly impressed...