Boost logs in VCDS
#11
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Here's a V2 beta 3rd gear pull log of boost for the APR tune:
![](https://lh6.googleusercontent.com/-3lAWG5DP-BY/T2NfDMt229I/AAAAAAAABmQ/kJzkAoIV5N8/s1024/boost.png)
In the past, I made 14psi at redline. With the V2, I make 14 psi at ~3k rpm... Bypass valve stays relatively closed. As per my podi boost gauge, I consistently hit 16psi (thanks to the "cool" weather here - high of 77F today LOL)
![](https://lh6.googleusercontent.com/-3lAWG5DP-BY/T2NfDMt229I/AAAAAAAABmQ/kJzkAoIV5N8/s1024/boost.png)
In the past, I made 14psi at redline. With the V2, I make 14 psi at ~3k rpm... Bypass valve stays relatively closed. As per my podi boost gauge, I consistently hit 16psi (thanks to the "cool" weather here - high of 77F today LOL)
#12
AudiWorld Senior Member
Thread Starter
![Default](https://www.audiworld.com/forums/images/icons/icon1.gif)
Here's a V2 beta 3rd gear pull log of boost for the APR tune:
In the past, I made 14psi at redline. With the V2, I make 14 psi at ~3k rpm... Bypass valve stays relatively closed. As per my podi boost gauge, I consistently hit 16psi (thanks to the "cool" weather here - high of 77F today LOL)
In the past, I made 14psi at redline. With the V2, I make 14 psi at ~3k rpm... Bypass valve stays relatively closed. As per my podi boost gauge, I consistently hit 16psi (thanks to the "cool" weather here - high of 77F today LOL)
Is that graph:
18 - Engine Speed vs 345 - Intake Manifold Pressure Absolute, 608 - Charged Air Pressure Specified, and 621 - Bypass valve % ??
Nice info! I will try and make the same graphs this week. I made one on Sunday for a 3rd gear pull using charged air pressure specified in hPa to ~6500rpm but I didn't convert to PSI.
When I tried to 1800 hectopascal = 26.106792791 psi
![Confused](https://www.audiworld.com/forums/images/smilies/confused.gif)
![](http://img716.imageshack.us/img716/6938/graphg.png)
Last edited by FatalBert; 07-10-2012 at 09:46 AM.
#13
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Is that graph:
18 - Engine Speed vs 345 - Intake Manifold Pressure Absolute, 608 - Charged Air Pressure Specified, and 621 - Bypass valve % ??
Nice info! I will try and make the same graphs this week. I made one on Sunday for a 3rd gear pull using charged air pressure specified in hPa to ~6500rpm but I didn't convert to PSI.
When I tried to 1800 hectopascal = 26.106792791 psi![Confused](https://www.audiworld.com/forums/images/smilies/confused.gif)
![](http://img716.imageshack.us/img716/6938/graphg.png)
18 - Engine Speed vs 345 - Intake Manifold Pressure Absolute, 608 - Charged Air Pressure Specified, and 621 - Bypass valve % ??
Nice info! I will try and make the same graphs this week. I made one on Sunday for a 3rd gear pull using charged air pressure specified in hPa to ~6500rpm but I didn't convert to PSI.
When I tried to 1800 hectopascal = 26.106792791 psi
![Confused](https://www.audiworld.com/forums/images/smilies/confused.gif)
![](http://img716.imageshack.us/img716/6938/graphg.png)
#15
AudiWorld Senior Member
Thread Starter
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So my logs definitely look stock then (I'm assuming).
I will be collecting a few more this weekend of my 3rd gear pulls.
#16
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Don't forget this thread Fat. Lots of info here.
http://www.audizine.com/forum/showthread.php/474796-B8-S4-log-thread-Post-your-VCDS-logs-here
http://www.audizine.com/forum/showthread.php/474796-B8-S4-log-thread-Post-your-VCDS-logs-here
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