Variable Geometry Turbo

[NMJ-045]

Porsche is releaseing this on the next 911 turbo... I wonder how long untill VGT are avail for mass market?

http://www.canadiandriver.com/news/051115-7.htm

[Highboosted]

Its been out for about 15 years now.....used on big desiels. Garrett pioneered this concept and has had a line of VNT turbos for 10 years now for passenger cars, though most people dont want to spend 14,000 dollars for a turbo. Changing the intake side has been around also, pioneered by a small company named AeroDyne that made turbos for motorcycles. They did it so they didnt have to plumb a wastegate or BPV. Porche just ripped their design from an AeroDyne turbo.

[mattytm3]

are u talkin about vatn variable vane turbos or something else?

[mattytm3]

I run an aerocharger wich has the varaible vane technology and I like it. It is said that they have almost no back pressure

[Highboosted]

a VNT turbo changes the effective exhaust AR. The porche system is the exact same, either by changing the nozzle size like garrett or by actually changing the blade angle by using a purely axial turbine section (a bad idea, I doubt they use this method, which is why I say they use the system pioneered by Garrett (current patent holder and initial users and designers) and AeroDyne (Probly same company as AeroCharger, new name, just its been 6 years since I have dealt with them).

[mattytm3]

It is an aerodyne aerocharger I dont even know if they still make the aerocharger for anything but harleys now because my aerocharger is about 6years old. It came with the mechtech turbo kit I had purchased a while back. I have made substantial upgrades to this setup but any how I tried to contact them via the net and because I wanted to somehow run moreboost possibly with a bigger aerocharger>