MHD Log Assistance

eggman3678 · 06-21-2018, 07:09 AM

I have the VRSF Down pipes, 7" FMIC, and Charge pipe.
I'm also running the Fuel-IT stage 2 LPFP. Last night after making a e40 mix and running the MHD 40% Of Ethanol v7.1 map for the first time something just doesn't feel right.
I was wondering if someone could help me out? All I can see is that the boost PSI isn't matching the Target Boost PSI:
https://datazap.me/u/eggman3678/log-...og=0&data=3-24
Any insight would be greatly appreciated!

Here's a log from the same car a couple of years ago for comparison:
https://datazap.me/u/eggman3678/log-...og=0&data=4-24

Oh, I also had replaced the spark plugs and air filter as well as changed the oil last weekend.

marv85 · 06-21-2018, 07:37 PM

The WGDC is much higher in the new log vs the old for a similar target. It could be boost leak. Did you check all connections from your turbos to your throttle body? Have you ever replaced vacuum lines? Boost solenoids?

06-21-2018, 07:09 AM	#1
eggman3678 Registered 0 Rep 4 Posts Drives: 09 335i Join Date: Jul 2015 Location: DFW Texas iTrader: (0)	MHD Log Assistance - Possible Boost Leak I have the VRSF Down pipes, 7" FMIC, and Charge pipe. I'm also running the Fuel-IT stage 2 LPFP. Last night after making a e40 mix and running the MHD 40% Of Ethanol v7.1 map for the first time something just doesn't feel right. I was wondering if someone could help me out? All I can see is that the boost PSI isn't matching the Target Boost PSI: https://datazap.me/u/eggman3678/log-...og=0&data=3-24 Any insight would be greatly appreciated! Here's a log from the same car a couple of years ago for comparison: https://datazap.me/u/eggman3678/log-...og=0&data=4-24 Oh, I also had replaced the spark plugs and air filter as well as changed the oil last weekend.
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06-21-2018, 07:37 PM	#2
marv85 Colonel 70 Rep 2,626 Posts Drives: '07 E92 335i MT Join Date: Jun 2010 Location: Bay Area iTrader: (7)	The WGDC is much higher in the new log vs the old for a similar target. It could be boost leak. Did you check all connections from your turbos to your throttle body? Have you ever replaced vacuum lines? Boost solenoids? __________________ '07 E92 335i 6MT- HP650, inlets/outlets, ER FMIC, VRSF CP, LPFP stg2, CSF rad, 'is Aux rad, ER OC, Ohlins, M control arms, eibach front sway bar. '05 C55 AMG SOLD - '22 Tesla M3P \| '10 E92 335i M, 6MT COBB, FBO, st2 LPFP, Mfactory LSD \| '07 E90 335i, PTF COBB E50, FBO, HFS4
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