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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > Australia > MHD v8.1 lock and loaded



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      12-11-2019, 11:51 PM   #1
BM335M
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MHD v8.1 lock and loaded

Loaded MHD v8.1 the other night via the new wireless adapter and car seems to run a bit smoother with more torque low to mid range.

I did a log and noticed boost hits 19.2psi which is 1psi over target and no throttle closures appeared. Previously with v8.0 beta i had lots of throttle closures when boost went over target, not sure if this was a safety feature that has been cleaned up with the new version.

Anyone else running v8.1 and done a log recently?

https://datazap.me/u/mircebob/mhd-v8...=0&data=3-4-21
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      12-12-2019, 02:56 AM   #2
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If you haven't already, have a read through this thread. There are some comments and concerns about how the v8.1 maps handle boost, fuel, and timing.

MHD V8.1 Maps https://www.e90post.com/forums/showthread.php?t=1670636
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      12-12-2019, 04:11 PM   #3
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Thanks for that, will check it out.
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      12-12-2019, 05:17 PM   #4
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Keep an eye on those STFT's, your running extremely lean on the first half of the rpm range
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      12-12-2019, 05:31 PM   #5
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Quote:
Originally Posted by BM3Rrrr View Post
Keep an eye on those STFT's, your running extremely lean on the first half of the rpm range
yeah i noticed that, both are maxed out not sure why as the lpfp and hpfp both are working ok and theres no timing corrections in that range.
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      12-12-2019, 07:42 PM   #6
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Quote:
Originally Posted by BM335M View Post
yeah i noticed that, both are maxed out not sure why as the lpfp and hpfp both are working ok and theres no timing corrections in that range.
It is strange as most times I've seen maxed trims is on the upper rpm range.
Have you replaced your pre-cat o2's lately?
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      12-12-2019, 10:01 PM   #7
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Quote:
Originally Posted by BM3Rrrr View Post
It is strange as most times I've seen maxed trims is on the upper rpm range.
Have you replaced your pre-cat o2's lately?
No i havent replaced O2's.. will log again just in case it was a glitch.
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