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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 > MHD "take a look at my log" thread



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      Today, 04:31 PM   #6051
TiAgAu
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Quote:
Originally Posted by Yang Liu View Post
hi fellows,
I have an 09 e90 n54 335. I just start learning self-tune for my car.
i have a question about the boost target. i attached 3 logs of my self-tune logs, i can see the initial boost target has a deep concave/step. i tried to set high load request all cross the rpm with modified BLM/LLF as below attached screenshot, but unfortunately it didn't help. i checked WedgePerformance tune's log, they all have very smooth/sharp boost target at the beginning. May i know the reason for this?
thanks in advance!

self-tune logs:
https://datazap.me/u/dragonfly1112/s...og=2&data=3-24
https://datazap.me/u/dragonfly1112/s...og=0&data=3-24
https://datazap.me/u/dragonfly1112/s...og=1&data=3-24

Attachment 3562161Attachment 3562162Attachment 3562163Attachment 3562164Attachment 3562165
Since your using the MHD+ Gear x RPM boost ceiling, have enabled the "Enable Custom 3D Boost Ceiling Table"?
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      Today, 06:12 PM   #6052
Yang Liu
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Quote:
Originally Posted by TiAgAu View Post
Since your using the MHD+ Gear x RPM boost ceiling, have enabled the "Enable Custom 3D Boost Ceiling Table"?
Yes! But this settings will not cause the concave initial boost target issue

Last edited by Yang Liu; Today at 06:12 PM..
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