Variable vane/geometry turbo setup
11-09-2012, 09:01 PM
#1
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Variable vane/geometry turbo setup
Has anyone tried utilizing a variable vane turbo on their Honda? It's big with diesels and Porsche also uses them. If you don't know what they are, basically you can change your exhaust housing size either with a dial or at a rising rate with RPM. What this means is instant spool and flat torque across the board because you can alter the flow.
11-11-2012, 08:18 AM
#3
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Re: Variable vane/geometry turbo setup
Aerocharger uses variable vane technology but at a cost of $2500 a pop for 350hp- 400hp. I have not found one honda with an aerocharger but people in the atv world rave about them.
aerocharger.com
aerocharger.com
11-11-2012, 07:50 PM
#5
Re: Variable vane/geometry turbo setup
The crutial aspect here is how do you control it? Actuators and position sensors would need to be controlled by the ECU. You'd want a turbo speed sensor and PR sensors to tune this VGT system. It would require a full standalone EMS.
11-11-2012, 08:12 PM
#6
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Re: Variable vane/geometry turbo setup
Exactly, it would require extensive tuning and custom work. You can pickup used Powerstroke 6L VGT for $200-300. I know Garrett makes VGT but it's not hugely available.
11-11-2012, 11:39 PM
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Re: Variable vane/geometry turbo setup
Someone did one on a nsx, Seems like they don't like high psi? From what I read. And it was a aerocharger.
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11-11-2012, 11:52 PM
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11-12-2012, 02:17 AM
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Re: Variable vane/geometry turbo setup
Controlling and tuning it would be the most difficult part of this project...
Engine VE changes as the turbine changes angle... You may need to convert to a much higher resolution MAF sensor for tuning instead.
Engine VE changes as the turbine changes angle... You may need to convert to a much higher resolution MAF sensor for tuning instead.
11-12-2012, 05:38 AM
#10
Re: Variable vane/geometry turbo setup
In the video in the FAQs (still don't know how people skip this) it talks briefly about Variable Vein.
At 4:09 of the video, you'll see the pros/cons of attempting to use this.
http://www.youtube.com/watch?feature...v=vGhlgphrBxA#!
At 4:09 of the video, you'll see the pros/cons of attempting to use this.
http://www.youtube.com/watch?feature...v=vGhlgphrBxA#!
11-12-2012, 05:07 PM
#12
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Re: Variable vane/geometry turbo setup
How do the GM guys get away with this? My uncle has one on his Daytona. He looked at me funny when I asked how it was tuned.
11-12-2012, 05:49 PM
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Re: Variable vane/geometry turbo setup
It can be tuned with speed density, but there will probably be a lot of gaps in the tuning. If the stock ECU has multiple fuel/ignition tables based on vane position, then that would work too. Most of the OEM turbo cars use AFM's or use some sort of airflow metering system anyway.
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