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      05-05-2021, 03:39 PM   #6
n55david
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Drives: 2017 m240i, 2015 X3 x35i
Join Date: Aug 2018
Location: Michigan USA

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2017 m240i xDrive  [0.00]
2015 X3 x35i  [0.00]
2015 335i xdrive  [0.00]
Quote:
Originally Posted by bimmerace View Post
Quote:
Originally Posted by 435gc View Post
Are you positive the trans is slipping?

What happens if you are not in manual mode?
What are your xhp settings at?
Is xhp logging anything when you experience the issue?
Have you tried removing xdelete?
Do you have upgraded fueling?
It does the same thing in automatic, right now to test it I uninstalled xhp and same results, so will reinstall to do some logging later today. I did disabled it when I uploaded this video. I have not upgraded fueling, it's on a custom 91 oct map at 16psi



In the video, I tried to accelerate to the point where boost would normally kick in, but the car won't accelerate much from the slippeage. If you pay close attention, you can hear some grinding coming from the transmission:/
transmission slip is the same as clutch slip.. it would Rev and Rev quicker than normal. not this.
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2017 m240i xDrive 10.67@132.32mph w/bm3
2015 335i xDrive 10.95@124.99mph w/bm3 - SOLD
2015 X3 x35i pwg 12.96 catless w/bm3 stage 2 93 ots
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