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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 > Log sanity check...



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      09-18-2016, 11:28 AM   #1
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Log sanity check...

Anyone mind taking a look at my log?

http://datazap.me/u/str8shot/e30-e30...=0&data=4-6-22

These are brand new OEM snails. I feel like they should be holding peak boost longer.

Does this look like a boost leak?
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      09-18-2016, 06:23 PM   #2
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Quote:
Originally Posted by str8shot View Post
Anyone mind taking a look at my log?

http://datazap.me/u/str8shot/e30-e30...=0&data=4-6-22

These are brand new OEM snails. I feel like they should be holding peak boost longer.

Does this look like a boost leak?


Dial in Duty Bias up top where Boost falls away from target

http://www.n54tech.com/forums/showthread.php?t=29893
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      09-18-2016, 06:55 PM   #3
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how old are your boost solenoids?
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      09-18-2016, 06:56 PM   #4
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Quote:
Originally Posted by AndrewA View Post
Dial in Duty Bias up top where Boost falls away from target

http://www.n54tech.com/forums/showthread.php?t=29893
that's a mhd log, duty bias is a jb4 thing.
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      09-19-2016, 09:36 AM   #5
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Quote:
Originally Posted by Harambe View Post
how old are your boost solenoids?
Original, so about ~61k. Think that could be it?

I looked at some older logs from about two years ago and she was holding 17 lbs to 6k.
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      09-19-2016, 10:31 AM   #6
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Quote:
Originally Posted by Harambe View Post
that's a mhd log, duty bias is a jb4 thing.
That does not matter. Per the mods in his sig, he is running JB4 with E85 Backend Flash (assuming MHD). He may be logging through the MHD App but he can still make adjustments through JB4 via Data Cable
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      09-19-2016, 10:53 AM   #7
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Quote:
Originally Posted by AndrewA
Quote:
Originally Posted by Harambe View Post
that's a mhd log, duty bias is a jb4 thing.
That does not matter. Per the mods in his sig, he is running JB4 with E85 Backend Flash (assuming MHD). He may be logging through the MHD App but he can still make adjustments through JB4 via Data Cable
The only way he could log with mhd and use jb4 simultaneously is if the jb4 was in map 0 which is not the case. His sig probably isn't updated. It's a standalone mhd flash, it looks like a modified version of the cobb e30 flash adapted for mhd.
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      09-19-2016, 11:59 AM   #8
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Quote:
Originally Posted by Harambe View Post
The only way he could log with mhd and use jb4 simultaneously is if the jb4 was in map 0 which is not the case. His sig probably isn't updated. It's a standalone mhd flash, it looks like a modified version of the cobb e30 flash adapted for mhd.
This. Don't even have JB4 installed any longer.

I'll update my sig.
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      09-19-2016, 12:20 PM   #9
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Quote:
Originally Posted by str8shot View Post
Original, so about ~61k. Think that could be it?

I looked at some older logs from about two years ago and she was holding 17 lbs to 6k.
One of my solenoids leaked slightly and I was always about 2psi under target. Swapped it out and it's right on. I'd suggest testing them with a mityvac, it's very simple.
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