Borg Warner s400 t4 with a 88 comp and 92 turbine is the biggest I know of. That'll make a **** load of power.

 

Yea bw rates their turbines at the inducer and iirc the 92mm turbine has about a 84-85mm exducer which would be sick! That turbo would move some air!

 

Dad gum, those QSV's are the price of a small turbo.

 

Yea screw those things lol

 

Somebody needs to build these for Gas turbos setup!

Blaylock Turbochargers | Switchblade Turbo | Motorcycle Turbos | Power Stroke Turbos | Cummins Turbos | Duramax Turbos | Powerstroke Turbos

 

But if a person has the cash to do so. A compound set up with a QSV on both turbos would be in real. Low low rpm spool and great top end with everything in between. Lol. Or even a twin setup with on on each turbo. Then you could size your turbines a little bigger and be able to spool faster with top end like a big single.

 

Wow that's pretty awesome.

 

So do it already!

 

Yet still cheaper than the additional turbo, wastegate, hot pipes/fabrication, oil lines, etc. that you'd need in order to pull off a compound setup... Might as well build a sequential boost setup if you plan on having better low end with a big turbo

 

sequential setup would be the coolest route!! Kyle, that is a pretty slick device. Kind of like a variable vane nozzle but a different way to do it.