what effects would a VATN system have on a rotary engine? has anyone ever ran a VATN setup?

 

Of course Mazda already had a very basic version with their twin scroll system. With modern turbo design and the strong rotary exhaust pulses, Mazda found such systems unnecessary.

However I don't doubt that a VATN system would be beneficial to any engine.

 

Search the "single turbo" section for GT37 VGT.

This is the latest version of VATN that Garret is using in the Ford Powerstroke 6.0 truck.

It uses a hydraulic actuator to vary the pitch of the vanes and the newest GT compressor and turbine wheels.

I have one that I was toying with adapting to the rotary. The exhaust side is so large it may have to mount ahead of the engine even in the FCs relatively roomy engine bay.

I would rather mount it low and behind the engine with a scavenge pump lifting the drained oil back up to the oil pan- this may also be possible.

 

One problem...they are all too small.
I dunno how big that GT37, but it sounds too small for a 13B.
Maybe if you run two of them?
Hmmmm....


-Ted

 

This 6.0 Powerstroke GT37 VGT uses the 82mm compressor wheel in a BIG compressor housing. It has antisurge to broaden the map and its compressor map is already broad like a 60-1 except MUCH better at higher pressure ratios.

The VGT exhaust side will work to create very low restriction once up to boost since WG or turbo housing inefficiencies are not present; just enough AR is made by the vanes pitch to keep the turbo up to boost.

This will means the HP will be as high as that compressor on a HUGE AR housing that just makes peak boost at redline, but with awsome spool up.

I would say 400-450RWHP and a power curve to die for with this turbo.

 

There was a VATN for sale on EBay, but I wouldnt know how to control that thing. I dont even know if the Haltech CAN control it..?!