Thread: Aerochargers

yah the Acure RDX has variable vane. Pretty cool I must say

thats cool ****.

id like to see a cgi of how it actually works.

stratton.

wicked indeed.

Here are some good illustrations How does Variable Turbine Geometry work?

This is from the areocharger website AEROCHARGER | Technology


This vid shows the fins from fully open to fully closed back and forth.
Variable Geometry Turbo - Car Videos on StreetFire

By opening and closing the fins the turbo changes area ratios. To put it simply it changes from a small turbo to a bigger one and anywhere in between as needed. When there is not much exhaust flow it closes the fins to keep the turbo RPMs high. When the exhaust flow increases then it starts opening the fins. This keeps the turbo from choking out at the top end (like a t25 on an SR20).

the 66 series would be great, very interesting indeed. The ease of installation really makes it worth thinking about.

Someone needs to find and post the other style of variable vane/nozzle technology. It's much better because it has only one moving part (instead of 30+) and can put up with high gasoline EGTs much better. I'm being too lazy right now to find it, but it's the way I'd do it and I've had plans for a long while to use one in my next build. I think it is a Cummings design but I could be wrong.

I know what you are talking about it is the Holset VGT. I am not sure about EGTs being much different, there is less control of the fins with the Holset style. I do know basically the difference I think. The Holset design doesn't have the rotating fins. It's fins are fixed, they are part of a formed plate. The fins/ plate are raised and lowered through slots in another plate to the same effect.

Holset VGT scroll down and there are pictures of both styles.

These use the electronic controllers, that were giving the diesel guys a hard time. The controllers need all kinds of different inputs from vehicle sensors. If you were to use one of these (I was thinking the exact same thing until I came across the Aerochargers) you will probably have to either make your own controller with a servo and maybe link it to the TPS or get good with a micro processor. Garret has some REA controllers that might be adaptable too

very cool design would work wonders on a awd 6cyl platform...

I know all about Aerochargers. I was planning on boosting my old 2.0L DOHC Ford Focus with one. It was a neat setup. It mounts tucked up BEHIND the engine, pretty much underneath near the passenger side axle. No need for oil or water lines. Just exhaust and charge pipes.

Yes jere that is the design I'm talking about.

All this hoopla over the electronic controllers can easily be solved with a little ingenuity and a typical external wastegate actuator.