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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Procede Boost Control Gain



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      07-25-2011, 03:51 PM   #23
lamia2super
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      07-28-2011, 10:57 AM   #24
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Checked my compensation and I'm pegged at 5% and at standard gain of 45. TO CONFIRM: I lower the gain to increase my DC set point in the map correct. So I would want to lower it to around 40, 42ish??
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      07-28-2011, 11:22 AM   #25
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Originally Posted by Joshboody View Post
Checked my compensation and I'm pegged at 5% and at standard gain of 45. TO CONFIRM: I lower the gain to increase my DC set point in the map correct. So I would want to lower it to around 40, 42ish??
If you wgate compensation is pegged at +5%, add 5% to your gain. You are going to see some gains in boost response given that your wastegates appear to be on the soft side of the spectrum.
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      07-28-2011, 11:34 AM   #26
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Quote:
Originally Posted by shiv@vishnu View Post
If you wgate compensation is pegged at +5%, add 5% to your gain. You are going to see some gains in boost response given that your wastegates appear to be on the soft side of the spectrum.
That's what I thought, but there's some incorrect info when I searched... or I can't read. Thanks!

I imagine there's going to be swings depending on the air mass in summer, winter for example. Also I'm at around -0.7psi at idle so the stock maps will be slightly off.
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      07-28-2011, 12:52 PM   #27
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another question, do you need to reset procede and wastegate compensation through the command center when changing gain??
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      07-28-2011, 01:13 PM   #28
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Originally Posted by Joshboody View Post
another question, do you need to reset procede and wastegate compensation through the command center when changing gain??
Nope. You really shouldn't ever reset wastegate compensation unless a map update recommends it. And they rarely do since boost control mapping has been pretty much unchanged for a while now.
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