E90Post
 


Studio RSR
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Datalogging With Cobb



Reply
 
Thread Tools Search this Thread
      02-28-2013, 06:19 AM   #45
RimasRS
Colonel
RimasRS's Avatar
85
Rep
2,438
Posts

Drives: BMW X3 SD
Join Date: Sep 2010
Location: Europe

iTrader: (0)

Quote:
Originally Posted by enrita View Post
if you want help here use std. values. do 4th as well to see post shift timings. just follow my directions
Thank you... Will do that.

Also did you tried to measure performance 0-100 time with AP because I was trying few times and no luck I get "-" signs instead of time. Just when I go slowly to 100 kmh I get the real time WTF?
Appreciate 0
      02-28-2013, 06:36 AM   #46
enrita
Major General
enrita's Avatar
Sweden
159
Rep
7,378
Posts

Drives: 335i - Big turbos
Join Date: Sep 2008
Location: Italian in Sweden

iTrader: (0)

Quote:
Originally Posted by RimasRS View Post
Thank you... Will do that.

Also did you tried to measure performance 0-100 time with AP because I was trying few times and no luck I get "-" signs instead of time. Just when I go slowly to 100 kmh I get the real time WTF?
never. i use Vbox
__________________
07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
Appreciate 0
      02-28-2013, 07:34 PM   #47
Glowin
Captain
Glowin's Avatar
United_States
70
Rep
978
Posts

Drives: X3 35 & 335i now - M2/M4 next?
Join Date: Jun 2009
Location: Seattle

iTrader: (0)

Enrita, if you've changed your defaults, is there an easy way to change them back to whatever the unit came with?
Appreciate 0
      02-28-2013, 09:11 PM   #48
Koreyy
KOrey
United_States
26
Rep
548
Posts

Drives: 335i Coupe
Join Date: May 2012
Location: Philadelphia

iTrader: (5)

Garage List
2008 BMW 335i  [0.00]
hey anybody help with my logs? my virtual dyno program keep saying no wide open throttle TPS data found...
please help !!

datalog4.zip
datalog5.zip
Appreciate 0
      02-28-2013, 10:52 PM   #49
Ænema
Captain
14
Rep
961
Posts

Drives: BMW
Join Date: Aug 2012
Location: Arizona Bay

iTrader: (0)

Quote:
Originally Posted by Glowin View Post
Enrita, if you've changed your defaults, is there an easy way to change them back to whatever the unit came with?
There's an option on the AP to reset to reset to default logging parameters.
__________________
"I'm not surprised you get along well with all the other neighbours. If you put fifty children with Down's syndrome in a room there is going to be a lot of hugging." David Thorne
Appreciate 0
      02-28-2013, 10:57 PM   #50
Ænema
Captain
14
Rep
961
Posts

Drives: BMW
Join Date: Aug 2012
Location: Arizona Bay

iTrader: (0)

Quote:
Originally Posted by Koreyy View Post
hey anybody help with my logs? my virtual dyno program keep saying no wide open throttle TPS data found...
please help !!
There's a few things going on. First of all(and the reason VD is throwing an error) is because you never went WOT. Secondly, you've got about 10 minutes worth of normal driving. There is no "pull" in the logs.

Just grab a couple logs of a 3rd gear pull. Start the log right before going WOT and stop it as soon as you safely can after letting off the throttle.
__________________
"I'm not surprised you get along well with all the other neighbours. If you put fifty children with Down's syndrome in a room there is going to be a lot of hugging." David Thorne
Appreciate 0
      02-28-2013, 11:06 PM   #51
Koreyy
KOrey
United_States
26
Rep
548
Posts

Drives: 335i Coupe
Join Date: May 2012
Location: Philadelphia

iTrader: (5)

Garage List
2008 BMW 335i  [0.00]
Quote:
Originally Posted by Ænema View Post
There's a few things going on. First of all(and the reason VD is throwing an error) is because you never went WOT. Secondly, you've got about 10 minutes worth of normal driving. There is no "pull" in the logs.

Just grab a couple logs of a 3rd gear pull. Start the log right before going WOT and stop it as soon as you safely can after letting off the throttle.
i will try again. thanks !
Appreciate 0
      03-01-2013, 12:00 AM   #52
dallas_jeff
First Lieutenant
United_States
8
Rep
341
Posts

Drives: 2008 E90
Join Date: Feb 2013
Location: Dallas, TX

iTrader: (3)

I just start the log when I get into the car then filter the data in Excel based on when the pedal is above 99%. It works for me. Although, sometimes I look at the cobb unit, and it has lost communication with the ECU, so I have to do my pulls again.
Appreciate 0
      03-01-2013, 12:19 AM   #53
Ænema
Captain
14
Rep
961
Posts

Drives: BMW
Join Date: Aug 2012
Location: Arizona Bay

iTrader: (0)

Quote:
Originally Posted by dallas_jeff View Post
I just start the log when I get into the car then filter the data in Excel based on when the pedal is above 99%. It works for me. Although, sometimes I look at the cobb unit, and it has lost communication with the ECU, so I have to do my pulls again.
Yeah, that definitely works. It just adds a couple steps for people that want to open it in VD.
__________________
"I'm not surprised you get along well with all the other neighbours. If you put fifty children with Down's syndrome in a room there is going to be a lot of hugging." David Thorne
Appreciate 0
      03-01-2013, 12:25 AM   #54
dallas_jeff
First Lieutenant
United_States
8
Rep
341
Posts

Drives: 2008 E90
Join Date: Feb 2013
Location: Dallas, TX

iTrader: (3)

I'm new to VD. How accurate is it? Do throttle closures make it read higher? Because I'm still trying to tune out my throttle closures, and VD is reading ridiculous amounts of rwtq.
Appreciate 0
      03-01-2013, 12:36 AM   #55
Ænema
Captain
14
Rep
961
Posts

Drives: BMW
Join Date: Aug 2012
Location: Arizona Bay

iTrader: (0)

Quote:
Originally Posted by dallas_jeff View Post
I'm new to VD. How accurate is it? Do throttle closures make it read higher? Because I'm still trying to tune out my throttle closures, and VD is reading ridiculous amounts of rwtq.
It depends on how accurate the vehicle info you plug in is, how much wheelspin and how flat the road is. I just use it to compare map changes, if i can consistantly see 10whp deltas than i have more than just the butt dyno to confirm gains. I don't really use it to just get numbers.

How high is your torque reading?
__________________
"I'm not surprised you get along well with all the other neighbours. If you put fifty children with Down's syndrome in a room there is going to be a lot of hugging." David Thorne
Appreciate 0
      03-01-2013, 12:39 AM   #56
dallas_jeff
First Lieutenant
United_States
8
Rep
341
Posts

Drives: 2008 E90
Join Date: Feb 2013
Location: Dallas, TX

iTrader: (3)

Quote:
Originally Posted by Ænema View Post
It depends on how accurate the vehicle info you plug in is, how much wheelspin and how flat the road is. I just use it to compare map changes, if i can consistantly see 10whp deltas than i have more than just the butt dyno to confirm gains. I don't really use it to just get numbers.

How high is your torque reading?
I've taken several logs and it's usually around 425-450...my latest log read 500, though lol. ... I'm in Dallas, so we have some great flat roads with no cops around at night.
Appreciate 0
      03-01-2013, 10:30 AM   #57
Ænema
Captain
14
Rep
961
Posts

Drives: BMW
Join Date: Aug 2012
Location: Arizona Bay

iTrader: (0)

Quote:
Originally Posted by dallas_jeff View Post
I've taken several logs and it's usually around 425-450...my latest log read 500, though lol. ... I'm in Dallas, so we have some great flat roads with no cops around at night.
If you're FBO and tuned for an e40 mix +450rwtq is probably about right.
__________________
"I'm not surprised you get along well with all the other neighbours. If you put fifty children with Down's syndrome in a room there is going to be a lot of hugging." David Thorne
Appreciate 0
      03-01-2013, 12:57 PM   #58
Ænema
Captain
14
Rep
961
Posts

Drives: BMW
Join Date: Aug 2012
Location: Arizona Bay

iTrader: (0)

A P29CF is a misfire in cylinder 3. Check the misfire sticky at the top of the first page
__________________
"I'm not surprised you get along well with all the other neighbours. If you put fifty children with Down's syndrome in a room there is going to be a lot of hugging." David Thorne
Appreciate 0
      03-01-2013, 11:10 PM   #59
Ænema
Captain
14
Rep
961
Posts

Drives: BMW
Join Date: Aug 2012
Location: Arizona Bay

iTrader: (0)

Quote:
Originally Posted by freshwater View Post
Install the stg 1 LT aggr MAP, using Octane 93 from Shell V power. No mods on the car. E90 ZPP ZSP. did update the AP manager with latest Maps.

Did saw a code thrown P29CF.

AP-BMW-001 v1.6.5.0-5527
Serial: 2702 (INSTALLED)
Vehicle: BMW N54 (I8A0S)

Attaching few log files no idea what they really mean.
did export to Virtual dyno for graph, last 2 files shows the data but no graph.
One of the file may be first one has the code thrown.

Any Experts can tell whats going on ??

Thanks.
All of the datalogs were of normal driving, need to get a log from a pull.
__________________
"I'm not surprised you get along well with all the other neighbours. If you put fifty children with Down's syndrome in a room there is going to be a lot of hugging." David Thorne
Appreciate 0
      03-02-2013, 01:03 AM   #60
Ænema
Captain
14
Rep
961
Posts

Drives: BMW
Join Date: Aug 2012
Location: Arizona Bay

iTrader: (0)

Do a 3rd gear pull (gas pedal all the way down)starting at about 2500rpms and go to about 6500rpms. With an auto it's a little tricky to go wide open throttle without forcing a downshift, so it may take a little practice to get used to not hitting the kickdown switch.

As far as starting the log, that's not a glitch. That's the way it's supposed to work.
__________________
"I'm not surprised you get along well with all the other neighbours. If you put fifty children with Down's syndrome in a room there is going to be a lot of hugging." David Thorne
Appreciate 0
      03-02-2013, 10:26 AM   #61
Ænema
Captain
14
Rep
961
Posts

Drives: BMW
Join Date: Aug 2012
Location: Arizona Bay

iTrader: (0)

Quote:
Originally Posted by freshwater View Post
will do that on Saturday and post some results.
so basically should be driving at 2500 rpm and then push the pedal to
the floor till it hits 6500rpms. and then stop logging
should I use default log list or add anything more.

I may have to use pedal shifter to make sure I am in 3rd gear or M3
yep, you've got it. Leave it at the default logging list.
__________________
"I'm not surprised you get along well with all the other neighbours. If you put fifty children with Down's syndrome in a room there is going to be a lot of hugging." David Thorne
Appreciate 0
      03-02-2013, 08:05 PM   #62
dallas_jeff
First Lieutenant
United_States
8
Rep
341
Posts

Drives: 2008 E90
Join Date: Feb 2013
Location: Dallas, TX

iTrader: (3)

I'm not an expert at reading logs, and it's hard to tell tons since you couldn't do a full 3rd gear pull, but it looks like you're running very lean.
Appreciate 0
      03-02-2013, 10:40 PM   #63
Ænema
Captain
14
Rep
961
Posts

Drives: BMW
Join Date: Aug 2012
Location: Arizona Bay

iTrader: (0)

Quote:
Originally Posted by freshwater View Post
Attaching 1 zip file containing 2 log files.

datalog7 was the first run and it also fired the code P29CF during the run, so that's why cant hit the red line the way i wanted.

datalog8 was the run after and with Service engine light ON so cant push it much higher either..

not sure why Cylinder 3 firing the codes. Have New plugs like 12k miles on them.
You'll need to get the cylinder 3 misfire fixed before you can gather any useful any data. Follow the guidelines in the misfire sticky, however if the misfire is ALWAYS in cylinder 3 then you can probably assume that it's either plug or coil.
__________________
"I'm not surprised you get along well with all the other neighbours. If you put fifty children with Down's syndrome in a room there is going to be a lot of hugging." David Thorne
Appreciate 0
      03-02-2013, 11:20 PM   #64
Ænema
Captain
14
Rep
961
Posts

Drives: BMW
Join Date: Aug 2012
Location: Arizona Bay

iTrader: (0)

Quote:
Originally Posted by freshwater View Post
I uninstall the AP and back to stock settings and all the codes disappeared.
Drive the car and no codes fired did floor the pedal few times everything looks fine. So some how they getting fired when at stg 1 LT aggressive.
Yeah, that's semi-normal beahavior. When making a lot more power the weakened plug/coil/injector is pushed past it's limit.
__________________
"I'm not surprised you get along well with all the other neighbours. If you put fifty children with Down's syndrome in a room there is going to be a lot of hugging." David Thorne
Appreciate 0
      03-03-2013, 05:22 PM   #65
Nonecure
Lieutenant
Nonecure's Avatar
United_States
77
Rep
466
Posts

Drives: 2013 M3
Join Date: Nov 2012
Location: Cincinnati, Ohio

iTrader: (1)

I have the Cobb Stg 1 Aggressive on 93 octane pump gas. The car pulls strong, but seems to get out of breath at higher rpm's. I installed new BMS DCS intake, but it didn't make a difference. I collected some data logs from the Cobb, but I really don't know what I'm looking at. Can someone please tell me if they look normal or if something is wrong?
Attached Files
File Type: txt Datalog13.txt (12.0 KB, 275 views)
Appreciate 0
      03-03-2013, 10:41 PM   #66
Ænema
Captain
14
Rep
961
Posts

Drives: BMW
Join Date: Aug 2012
Location: Arizona Bay

iTrader: (0)

Quote:
Originally Posted by Nonecure View Post
I have the Cobb Stg 1 Aggressive on 93 octane pump gas. The car pulls strong, but seems to get out of breath at higher rpm's. I installed new BMS DCS intake, but it didn't make a difference. I collected some data logs from the Cobb, but I really don't know what I'm looking at. Can someone please tell me if they look normal or if something is wrong?
Your log looks fine. The car feels like it it's falling off in power because it is. The turbos can't sustain boost that high in the RPMs, even less so with the stock IC and DPs.
__________________
"I'm not surprised you get along well with all the other neighbours. If you put fifty children with Down's syndrome in a room there is going to be a lot of hugging." David Thorne
Appreciate 0
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



All times are GMT -5. The time now is 01:55 AM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
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