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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 > MT boost levels at shifts?



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      06-10-2011, 09:30 AM   #1
jippii ensio
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MT boost levels at shifts?

How high are you able to keep the boost at manual shifts according to your logs?
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      06-10-2011, 10:55 AM   #2
dicostal
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Originally Posted by jippii ensio View Post
How high are you able to keep the boost at manual shifts according to your logs?
+1

I would like to know about this as well. I cant seem to keep boost on shifts
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      06-13-2011, 01:12 PM   #3
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no has been having this issue?

If I try to drag race the car i definitely feel a severe lost of boost. No one else has had this issue?

Thanks - Luigi
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      06-13-2011, 01:27 PM   #4
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Here is one GIAC Stage 2 Race log of mine. The boost stays very high between shifts. But there is some "bog" when you shift very fast and mainly between a fast 3-4 or 4-5 shift, it appears as a steady low boost for a second after shift then it climbs back up, it's present with all tunes even the stock tune. However on GIAC Stage 2 the bog appears very rarely. Try to shift a fraction of a second slower than your usual and see if it improves. Too slow = lag, too fast = bog
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Last edited by tscdennab; 06-13-2011 at 01:33 PM..
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