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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > All-Wheel-Drive (Xi / xDrive) Talk > Best way to launch with AT xi?



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      07-12-2017, 12:33 PM   #23
Kaoshan
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Car should run that bone stock. Are you sure it actually has the Dinan tune?
Yep! I posted a log a while back to verify, and was told it does indeed have Dinan Stage 3. Also, it was very hot and humid that night, and the car felt sluggish to me compared to normal.
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      08-10-2017, 08:23 AM   #24
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interesting, does everyone break boost at 2-2.5k rpm? I break boost all the way down and shift at 5k and managed 12.3 @115mph when I was just FBO and Cobb + e30
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      08-11-2017, 09:30 AM   #25
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interesting, does everyone break boost at 2-2.5k rpm? I break boost all the way down and shift at 5k and managed 12.3 @115mph when I was just FBO and Cobb + e30
You want to build as much boost as possible while brake boosting, so the higher the RPM the better. You are probably shifting a tad early, but not very much for the N55.
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