COBB Stage 1+FMIC 401 Log help

Redbmwm33 · 04-16-2012, 06:52 PM

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.

AU335i · 04-16-2012, 07:19 PM

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

Redbmwm33 · 04-16-2012, 07:22 PM

I'm not sure how to do that. I am certain I'm running stage 1+

rader1 · 04-16-2012, 07:24 PM

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.

AU335i · 04-16-2012, 07:26 PM

Quote:

Originally Posted by artsoasis

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)

Redbmwm33 · 04-16-2012, 07:31 PM

wow!, I'll check this out now.

AU335i · 04-16-2012, 07:41 PM

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.

rader1 · 04-16-2012, 07:50 PM

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

Redbmwm33 · 04-16-2012, 08:29 PM

Update: I ran 2 more times today and will post those logs.

Redbmwm33 · 04-16-2012, 09:40 PM

Would there be a reason I would be hitting 10.5 psi on stage 1+ aggressive?

skatenc123 · 04-16-2012, 10:02 PM

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.

Redbmwm33 · 04-16-2012, 10:03 PM

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.

rader1 · 04-16-2012, 10:04 PM

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...

Redbmwm33 · 04-16-2012, 10:18 PM

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.

rader1 · 04-16-2012, 10:22 PM

Quote:

Originally Posted by artsoasis

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.

Redbmwm33 · 04-16-2012, 10:27 PM

I'll be sure to look at everything again tomorrow.

Redbmwm33 · 04-16-2012, 10:32 PM

Would Oil on my MAF have anything to do with this as well? I noticed that when I was installing my AR charge pipe.

rader1 · 04-16-2012, 10:38 PM

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.

woptang22 · 04-17-2012, 05:09 AM

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?

Simon76 · 04-17-2012, 05:48 AM

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

rader1 · 04-17-2012, 08:33 AM

Quote:

Originally Posted by Simon76

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.

04-16-2012, 07:19 PM	#2
AU335i Captain 78 Rep 887 Posts Drives: 2008 335i E92 Join Date: Dec 2010 Location: Auburn, AL 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
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04-16-2012, 07:22 PM	#3
Redbmwm33 Lieutenant 102 Rep 558 Posts Drives: Bmw m9 Join Date: Jul 2011 Location: London iTrader: (3)	I'm not sure how to do that. I am certain I'm running stage 1+
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04-16-2012, 07:24 PM	#4
rader1 Banned 70 Rep 2,197 Posts Drives: Cobb Stage 2+ 135i Join Date: Apr 2011 Location: Roanoke, VA 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..
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04-16-2012, 07:31 PM	#6
Redbmwm33 Lieutenant 102 Rep 558 Posts Drives: Bmw m9 Join Date: Jul 2011 Location: London iTrader: (3)	wow!, I'll check this out now.
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04-16-2012, 07:41 PM	#7
AU335i Captain 78 Rep 887 Posts Drives: 2008 335i E92 Join Date: Dec 2010 Location: Auburn, AL 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
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04-16-2012, 07:50 PM	#8
rader1 Banned 70 Rep 2,197 Posts Drives: Cobb Stage 2+ 135i Join Date: Apr 2011 Location: Roanoke, VA 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
	Appreciate 0 Quote

04-16-2012, 09:40 PM	#10
Redbmwm33 Lieutenant 102 Rep 558 Posts Drives: Bmw m9 Join Date: Jul 2011 Location: London iTrader: (3)	Would there be a reason I would be hitting 10.5 psi on stage 1+ aggressive?
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04-16-2012, 10:02 PM	#11
skatenc123 Captain 11 Rep 645 Posts Drives: 2007 335i coupe Join Date: Jan 2012 Location: NC 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.
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04-16-2012, 10:03 PM	#12
Redbmwm33 Lieutenant 102 Rep 558 Posts Drives: Bmw m9 Join Date: Jul 2011 Location: London iTrader: (3)	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.
	Appreciate 0 Quote

04-16-2012, 10:04 PM	#13
rader1 Banned 70 Rep 2,197 Posts Drives: Cobb Stage 2+ 135i Join Date: Apr 2011 Location: Roanoke, VA 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
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04-16-2012, 10:18 PM	#14
Redbmwm33 Lieutenant 102 Rep 558 Posts Drives: Bmw m9 Join Date: Jul 2011 Location: London iTrader: (3)	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.
	Appreciate 0 Quote

04-16-2012, 10:27 PM	#16
Redbmwm33 Lieutenant 102 Rep 558 Posts Drives: Bmw m9 Join Date: Jul 2011 Location: London iTrader: (3)	I'll be sure to look at everything again tomorrow.
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04-16-2012, 10:32 PM	#17
Redbmwm33 Lieutenant 102 Rep 558 Posts Drives: Bmw m9 Join Date: Jul 2011 Location: London iTrader: (3)	Would Oil on my MAF have anything to do with this as well? I noticed that when I was installing my AR charge pipe.
	Appreciate 0 Quote

04-16-2012, 10:38 PM	#18
rader1 Banned 70 Rep 2,197 Posts Drives: Cobb Stage 2+ 135i Join Date: Apr 2011 Location: Roanoke, VA 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.
	Appreciate 0 Quote

04-17-2012, 05:09 AM	#19
woptang22 Major 169 Rep 1,247 Posts Drives: 2009 E92 BMW M3 Join Date: Nov 2011 Location: Bristol Pa 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? __________________ 2009 E92 BMW M3.
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04-17-2012, 05:48 AM	#20
Simon76 Private 0 Rep 53 Posts Drives: 335i Join Date: Dec 2011 Location: Sweden 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
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