NefMoto > Technical > Tuning > Can`t reach more then 1 bar boost on 2tfsi
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Author Topic: Can`t reach more then 1 bar boost on 2tfsi  (Read 8927 times)
melodic
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« on: June 04, 2013, 07:51:01 AM »
I have audi a4 2tfsi 2007 b7. I`ve modified IOP and IRL, but the requested boost is only 1 bar. Where is the limiter?
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krazykev
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« Reply #1 on: June 04, 2013, 07:55:43 AM »
These are limited because of the side mount intercoolers..

Compare values with say a stock Mk5 gti file, say around the area before LDR
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melodic
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« Reply #2 on: June 05, 2013, 03:44:18 AM »
actual boost is often 1,3 bar. But I want requested boost to be 1,3 bar.
LDRXN was also changed in my file.
« Last Edit: June 05, 2013, 07:49:43 AM by melodic » Logged
majorahole
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« Reply #3 on: June 05, 2013, 08:28:10 AM »
is this your ori file, or the modified one?
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SRT
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« Reply #4 on: June 05, 2013, 10:59:00 PM »
 LDPBN Wink
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SVSPORT
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« Reply #5 on: June 06, 2013, 11:37:16 AM »
Quote from: SRT on June 05, 2013, 10:59:00 PM
LDPBN Wink
Yes, change this map,also!
1CEFC0
Axis=1CA487
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phila_dot
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« Reply #6 on: June 06, 2013, 12:21:22 PM »
LDPBN only limits desired load when there is an error in one of the many temp inputs
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Rick
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« Reply #7 on: June 06, 2013, 12:35:40 PM »
Not in MED9
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phila_dot
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« Reply #8 on: June 06, 2013, 12:40:51 PM »
Huh...weird that they would change that.

When is it active in MED9?
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Rick
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« Reply #9 on: June 06, 2013, 12:46:21 PM »
All the time! 

It had be stumped at one point I can tell you...  US software usually has it set to 1 bar, European 1.25bar.  It's a true boost limiter, not pressure ratio or load.

Rick
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phila_dot
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« Reply #10 on: June 06, 2013, 05:09:31 PM »
Well that's convenient for guys like us, but really makes no sense in a torque based system.

Motronic is built around not caring what target boost pressure. Target boost pressure is determined to be whatever it takes to meet the torque request/specified load without sacrificing emissions and self preservation criteria.

Pressure ratio limitation makes perfect sense considering, but boost pressure?

Well, that was nice of them Cheesy
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melodic
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« Reply #11 on: June 06, 2013, 11:45:14 PM »
Quote from: SRT on June 05, 2013, 10:59:00 PM
LDPBN Wink
It is works! Thank you guys.
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amd is the best
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« Reply #12 on: June 07, 2013, 06:42:58 PM »
Off topic I apologize, but could you please share dslgrad and dlofs from you bin file?
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2012 Golf TDI
2001 Audi A4 2.8 30v Supercharged
1991 Audi 200 20v
melodic
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« Reply #13 on: June 29, 2013, 08:55:24 AM »
I didn`t change it.
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