E90Post
 


Bimmer Retrofit
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > COBB Stage 1+FMIC 401 Log help



Reply
 
Thread Tools Search this Thread
      04-16-2012, 06:52 PM   #1
artsoasis
Private
 
Drives: 2008 BMW 135i
Join Date: Jul 2011
Location: New Braunfels, TX

Posts: 94
iTrader: (2)

COBB Stage 1+FMIC 401 Log help

Hi,
I need some help analyzing my log I just made. I did a pull from 3rd to forth as instructed in the how to log diy. I just want to know if the tune is good for me.

Attached Files
File Type: zip stage 1+FMIC ST 401.zip (22.9 KB, 20 views)
artsoasis is offline   United_States
0
Reply With Quote
      04-16-2012, 07:19 PM   #2
AU335i
Captain
 
AU335i's Avatar
 
Drives: 2008 335i E92
Join Date: Dec 2010
Location: Auburn, AL

Posts: 884
iTrader: (3)

opened your .csv to try and regraph your run but honestly it looks like you aren't running stage 1 at all... your boost was peaking at 8lbs. make sure you are on Stage 1 on your Cobb AP
AU335i is offline  
0
Reply With Quote
      04-16-2012, 07:22 PM   #3
artsoasis
Private
 
Drives: 2008 BMW 135i
Join Date: Jul 2011
Location: New Braunfels, TX

Posts: 94
iTrader: (2)

I'm not sure how to do that. I am certain I'm running stage 1+
artsoasis is offline   United_States
0
Reply With Quote
      04-16-2012, 07:24 PM   #4
rader1
Banned
 
Drives: Cobb Stage 2+ 135i
Join Date: Apr 2011
Location: Roanoke, VA

Posts: 2,197
iTrader: (0)

It looks like you barely climbed in the revs at all before shifting

I downloaded your attachment and this is how it looked on VD.
On VD it actually looks like your car really likes it and is running good(boost seems low.) There's no timing corrections and timing seems strong. Unfortunately, the log ony goes to 5Krpm so IDK how it looks near redline.

EDIT: now that AU335i mentions it, that does look like a stock tune datalog. I was wondering why the AFR was closer to 13 than the usual 12.
Attached Images
 

Last edited by rader1; 04-16-2012 at 07:33 PM.
rader1 is offline  
0
Reply With Quote
      04-16-2012, 07:26 PM   #5
AU335i
Captain
 
AU335i's Avatar
 
Drives: 2008 335i E92
Join Date: Dec 2010
Location: Auburn, AL

Posts: 884
iTrader: (3)

Quote:
Originally Posted by artsoasis View Post
I'm not sure how to do that. I am certain I'm running stage 1+
should something like "Change Maps" > "Current Map"

and it should say Stage 1+ ... but like i said, it looks like you're on Stage 0 (stock map)
AU335i is offline  
0
Reply With Quote
      04-16-2012, 07:31 PM   #6
artsoasis
Private
 
Drives: 2008 BMW 135i
Join Date: Jul 2011
Location: New Braunfels, TX

Posts: 94
iTrader: (2)

wow!, I'll check this out now.
artsoasis is offline   United_States
0
Reply With Quote
      04-16-2012, 07:41 PM   #7
AU335i
Captain
 
AU335i's Avatar
 
Drives: 2008 335i E92
Join Date: Dec 2010
Location: Auburn, AL

Posts: 884
iTrader: (3)

this is what i saw when I graphed it... this is where it looks like you went WOT in 3rd from 3kish-6800 redline...


your boost curve resembles Stg. 0 (stock map) exactly... if you were running Stg. 1+ your boost should be pushing 15+ psi.
Attached Images
 
AU335i is offline  
0
Reply With Quote
      04-16-2012, 07:50 PM   #8
rader1
Banned
 
Drives: Cobb Stage 2+ 135i
Join Date: Apr 2011
Location: Roanoke, VA

Posts: 2,197
iTrader: (0)

Hmm, i wonder why our graphs are so different? It must have something to do with the way VD auto edits the before/after out of the logs. Thats the first time i've seen it cut off a log mid pull
rader1 is offline  
0
Reply With Quote
      04-16-2012, 08:29 PM   #9
artsoasis
Private
 
Drives: 2008 BMW 135i
Join Date: Jul 2011
Location: New Braunfels, TX

Posts: 94
iTrader: (2)

Update: I ran 2 more times today and will post those logs.
Attached Files
File Type: zip datalog17.zip (32.6 KB, 20 views)
File Type: zip datalog15.zip (18.8 KB, 18 views)

Last edited by artsoasis; 04-16-2012 at 09:16 PM.
artsoasis is offline   United_States
0
Reply With Quote
      04-16-2012, 09:40 PM   #10
artsoasis
Private
 
Drives: 2008 BMW 135i
Join Date: Jul 2011
Location: New Braunfels, TX

Posts: 94
iTrader: (2)

Would there be a reason I would be hitting 10.5 psi on stage 1+ aggressive?
artsoasis is offline   United_States
0
Reply With Quote
      04-16-2012, 10:02 PM   #11
skatenc123
Captain
 
skatenc123's Avatar
 
Drives: 2007 335i coupe
Join Date: Jan 2012
Location: NC

Posts: 648
iTrader: (1)

hmm idk why you would be boosting so low on stg1+ but if you could stop recording after you do the pull that would be much simpler to graph and look at.
skatenc123 is offline  
0
Reply With Quote
      04-16-2012, 10:03 PM   #12
artsoasis
Private
 
Drives: 2008 BMW 135i
Join Date: Jul 2011
Location: New Braunfels, TX

Posts: 94
iTrader: (2)

I'll do that for my runs tomorrow. I somehow think my ER charge pipe is causing a boost leak. I'll look into it tomorrow.
artsoasis is offline   United_States
0
Reply With Quote
      04-16-2012, 10:04 PM   #13
rader1
Banned
 
Drives: Cobb Stage 2+ 135i
Join Date: Apr 2011
Location: Roanoke, VA

Posts: 2,197
iTrader: (0)

For some reason, your actual load is WAY below requested load and i'm sure that's a big part of why(or a result of) you're not hitting boost target. You should definitely email cobb.

Are you getting any codes or check engine lights? I find it hard to believe you're not triggering an underboost code...
Attached Images
 
rader1 is offline  
0
Reply With Quote
      04-16-2012, 10:18 PM   #14
artsoasis
Private
 
Drives: 2008 BMW 135i
Join Date: Jul 2011
Location: New Braunfels, TX

Posts: 94
iTrader: (2)

I tried to do another run a few seconds ago and I got a boost leak code shown. I cleared the code and it went away. I tried another run and it came back. I'm definitely going to see wtf is going on with this charge pipe.
artsoasis is offline   United_States
0
Reply With Quote
      04-16-2012, 10:22 PM   #15
rader1
Banned
 
Drives: Cobb Stage 2+ 135i
Join Date: Apr 2011
Location: Roanoke, VA

Posts: 2,197
iTrader: (0)

Quote:
Originally Posted by artsoasis View Post
I tried to do another run a few seconds ago and I got a boost leak code shown. I cleared the code and it went away. I tried another run and it came back. I'm definitely going to see wtf is going on with this charge pipe.
OK, now it makes sense. Double check all the connections and fittings. Make sure the o-ring in the throttle body isn't severed or something like that. FMIC connections can easily be a source of boost leaks aswell.
rader1 is offline  
0
Reply With Quote
      04-16-2012, 10:27 PM   #16
artsoasis
Private
 
Drives: 2008 BMW 135i
Join Date: Jul 2011
Location: New Braunfels, TX

Posts: 94
iTrader: (2)

I'll be sure to look at everything again tomorrow.
artsoasis is offline   United_States
0
Reply With Quote
      04-16-2012, 10:32 PM   #17
artsoasis
Private
 
Drives: 2008 BMW 135i
Join Date: Jul 2011
Location: New Braunfels, TX

Posts: 94
iTrader: (2)

Would Oil on my MAF have anything to do with this as well? I noticed that when I was installing my AR charge pipe.
artsoasis is offline   United_States
0
Reply With Quote
      04-16-2012, 10:38 PM   #18
rader1
Banned
 
Drives: Cobb Stage 2+ 135i
Join Date: Apr 2011
Location: Roanoke, VA

Posts: 2,197
iTrader: (0)

That's actually your TMAP sensor but that wouldn't cause it. It's normal for an oily film to develop inside the charge pipe and i'm sure the BMW engineers took this into account.
rader1 is offline  
0
Reply With Quote
      04-17-2012, 05:09 AM   #19
woptang22
Captain
 
woptang22's Avatar
 
Drives: 2007 bmw 335i sedan
Join Date: Nov 2011
Location: philly

Posts: 895
iTrader: (1)

I see everyone talking about the boot being around 15psi or a bit higher when running the COBB stage 1+FMIC. Ive been using it now for a while, and I seem to get a lot higher boost. Yesterday I was monitoring my boost on the AP and it was hitting 18, and over 20 psi. Is this normal?
__________________
COBB AP PRO TUNE, Turner Motorsports Catback exhaust, AFE DCI, HELIX FMIC, VRSF DPs, ETS charge pipe, Tial BOV, Aquamist HFS-3 meth kit, KW V1 Coilovers, 19 in ICONZ 960 wheels.
woptang22 is offline  
0
Reply With Quote
      04-17-2012, 05:48 AM   #20
Simon76
Private
 
Simon76's Avatar
 
Drives: 335i
Join Date: Dec 2011
Location: Sweden

Posts: 53
iTrader: (1)

It's normal. Happens when shifting gear, not when pulling..
__________________

COBB Stg 2+, ETS FMIC, BMS DCI, VRSF DPs, FORGE DVs, BMS OCC, ER CP
Simon76 is offline   Sweden
0
Reply With Quote
      04-17-2012, 08:33 AM   #21
rader1
Banned
 
Drives: Cobb Stage 2+ 135i
Join Date: Apr 2011
Location: Roanoke, VA

Posts: 2,197
iTrader: (0)

Quote:
Originally Posted by Simon76 View Post
It's normal. Happens when shifting gear, not when pulling..
+1
but you should email Cobb letting them know, they have that fixed for most ROM revisions.
rader1 is offline  
0
Reply With Quote
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 08:48 PM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST