|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Today's Posts | Search |
|
BMW 3-Series (E90 E92) Forum
>
Datalogging With Cobb
|
|
04-20-2013, 11:27 PM | #89 |
Captain
233
Rep 885
Posts |
I did another log with HPFP and LPFP included. Still getting tons of corrections, driving me nuts but will start throwing in some E-85 every fill up to clear those up if I get a all clear signal on the performance of my fuel pumps. Any insight to these numbers would very much be appreciated.
Thanks again Marv for the headsup on logging these parameters by the way. Cobb stage 1+ drive ST 91 octane (About 80 degrees outside during pull) Dinan intercooler, intake and axle back exhaust. High flow secondary cats
__________________
DocRace 6266 E92. M8 comp coupe, X5m
|
Appreciate
0
|
05-18-2013, 06:33 AM | #90 |
Freude am fahren
71
Rep 1,968
Posts
Drives: E90 N54
Join Date: Mar 2010
Location: Doylestown, PA
|
hi guys,
hope this attachment works (sorry, cobb newb here). I'm running stage1+ aggressive ST on 93. (stock DPs right now). Doesn't look too bad to me, but let me know what you think.
__________________
Cobb E40 PROtune by Jake@PTF/RR catless DPs/aFe DCI/ETS 5" FMIC/ER CP/Forge DVs/Alpina B3 TCU flash/BMW Perf. Exhaust./BMW Performance Style 313s/M-Tech Rear
|
Appreciate
0
|
05-18-2013, 11:02 AM | #91 |
New Member
0
Rep 13
Posts |
Nice post!!
__________________
Skyline GTR owner: "Man that BMW is Fassstt!!! What you got in the motor?"
Me: "Just the usual...some gas, some oil and little bit of coolant." E92 SPACE GREY-JB4 G5 ISO, COOLING MIST METH KIT, RB TURBOS AND STUFF |
Appreciate
0
|
05-19-2013, 08:36 PM | #92 |
Private First Class
9
Rep 105
Posts |
Looks ok at first, but looks like a 2nd, 3rd, 4th gear run. Best to do a 3rd gear pull (read the start of this thread to get the details, 2500-redline). Virtual Dyno is a great app to track your logs too.
|
Appreciate
0
|
05-19-2013, 09:10 PM | #93 | |
Freude am fahren
71
Rep 1,968
Posts
Drives: E90 N54
Join Date: Mar 2010
Location: Doylestown, PA
|
Quote:
Edit: I looked back at it...I see what you're saying. I definitely wasn't in 4th to redline...I'd have been going about 120-130 mph lol. I think when I stomped it in second it kicked down on me.
__________________
Cobb E40 PROtune by Jake@PTF/RR catless DPs/aFe DCI/ETS 5" FMIC/ER CP/Forge DVs/Alpina B3 TCU flash/BMW Perf. Exhaust./BMW Performance Style 313s/M-Tech Rear
Last edited by sickem; 05-19-2013 at 09:52 PM.. |
|
Appreciate
0
|
05-19-2013, 09:56 PM | #94 |
Freude am fahren
71
Rep 1,968
Posts
Drives: E90 N54
Join Date: Mar 2010
Location: Doylestown, PA
|
here's another one from the same day...
__________________
Cobb E40 PROtune by Jake@PTF/RR catless DPs/aFe DCI/ETS 5" FMIC/ER CP/Forge DVs/Alpina B3 TCU flash/BMW Perf. Exhaust./BMW Performance Style 313s/M-Tech Rear
|
Appreciate
0
|
05-20-2013, 05:58 AM | #95 | |
Private First Class
9
Rep 105
Posts |
Quote:
I usually start logging as I cruise along in 3rd at 2000rpm, then slowly increase speed until 2500rpm where I hammer down and go WOT until redline, then shift, slow down and stop logging. After which, I edit the logs to include the point where I hit 99.61 TPS (which should be aruond 2500rpm) up to redline (usually where you will see timing go from its steady climb up to 8~9 to something drastically different as you shift. Here's a couple of mine. One on Stage 1 Sport, and one on Aggressive. I monitor the charge temp and overall timing correction in addition to the basics, and don't worry about the waste gate stuff anymore (I'm not a pro-tuner). You will notice on the aggressive map, the only timing correction done is an overall adjustment once the charge temp hits 110 degrees. The runs were done on different days, one being much hotter. But as you can see with both, no cylinder timing corrections anywhere, which is what you want to see (ideally). I'm running 94 octane always, and have no bolt-ons.... yet intercooler is next on my list, since it is the bottleneck at this point when the days get warm, and it's robbing my top end HP. |
|
Appreciate
0
|
05-21-2013, 09:16 AM | #96 |
Freude am fahren
71
Rep 1,968
Posts
Drives: E90 N54
Join Date: Mar 2010
Location: Doylestown, PA
|
I'd be much obliged if someone might take a look at this for me. thanks!
edit: post #94
__________________
Cobb E40 PROtune by Jake@PTF/RR catless DPs/aFe DCI/ETS 5" FMIC/ER CP/Forge DVs/Alpina B3 TCU flash/BMW Perf. Exhaust./BMW Performance Style 313s/M-Tech Rear
|
Appreciate
0
|
05-23-2013, 06:38 PM | #97 | |
Lieutenant Colonel
50
Rep 1,677
Posts
Drives: 14' GMC Terrain SLT-2
Join Date: May 2011
Location: Folsom, Ca
|
Quote:
I would log CAT's. Reset Data Log Lists and use that. You don't need to log your fuel trims if you not running Ethanol, IMO.
__________________
SOLD:: PTF Pro eTune by Dzenno / COBB S1+ E50 Alpina B3 Flash / ETS FMIC / ER CP / CPE DCI |
|
Appreciate
0
|
05-23-2013, 08:01 PM | #98 |
Freude am fahren
71
Rep 1,968
Posts
Drives: E90 N54
Join Date: Mar 2010
Location: Doylestown, PA
|
Thanks for your input. I'll reset it. I only logged those since I had been maxing fuel trims on procede. Looks like all is well since I had the hpfp replaced. Time to put the dps back on and run stage 2 and E85!!!
|
Appreciate
0
|
06-04-2013, 06:05 PM | #99 |
Lieutenant
87
Rep 555
Posts |
i need some help ... i did some logs for the very first time - and having some trouble making heads or tails of the data logs, .. im using the virtual dyno but - dont really know what to look for whats good and whats bad...
here are the links to the data files log 1 https://dl.dropboxusercontent.com/u/...2/datalog1.csv log2 https://dl.dropboxusercontent.com/u/...2/datalog3.csv log3 https://dl.dropboxusercontent.com/u/...2/datalog4.csv can someone take a look... and repost the graphs - kind of help me understand what im looking at ...with the good and bad.. thank you all in advance Last edited by dbudh001; 06-04-2013 at 06:13 PM.. |
Appreciate
0
|
06-04-2013, 07:21 PM | #100 | |
Captain
14
Rep 961
Posts |
Quote:
Just grab a log of a 3rd gear pull. Doing pulls like that through multiple gears can make things look worse than they are. As it is you're seeing timing corrections but i'd like to see how a single gear pull looks.
__________________
"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
|
06-04-2013, 07:25 PM | #101 | |
Lieutenant
87
Rep 555
Posts |
Quote:
i have DCI, DP, and FMIC... running stage 2 + FMIC Aggressive i started out in 3rd gear... 2500 rpm, when i pressed pass the kick down it down shifted to 2nd gear, so did all of 2nd, 3rd, and 4th gear.. got up to about 130 mph if i recall correctly |
|
Appreciate
0
|
06-04-2013, 07:38 PM | #102 |
Captain
14
Rep 961
Posts |
Practice rolling into the throttle to prevent the downshift and I think Vneblob posted a trick to eliminate the kickdown while logging. Those downshifts can wreak havoc with datalogs.
__________________
"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
|
06-04-2013, 08:15 PM | #104 |
Lieutenant Colonel
50
Rep 1,677
Posts
Drives: 14' GMC Terrain SLT-2
Join Date: May 2011
Location: Folsom, Ca
|
Essentially you can hit full throttle without hitting kickdown. So to mitigate hitting the kickdown you have to put a spacer between the floor and the Pedal. I think it's about 5/16" spacer
__________________
SOLD:: PTF Pro eTune by Dzenno / COBB S1+ E50 Alpina B3 Flash / ETS FMIC / ER CP / CPE DCI |
Appreciate
0
|
06-04-2013, 08:45 PM | #107 |
Lieutenant Colonel
50
Rep 1,677
Posts
Drives: 14' GMC Terrain SLT-2
Join Date: May 2011
Location: Folsom, Ca
|
Be sure to use the COBB to display throttle position and make sure at hundred percent when hitting the spacer And not the kick down.
__________________
SOLD:: PTF Pro eTune by Dzenno / COBB S1+ E50 Alpina B3 Flash / ETS FMIC / ER CP / CPE DCI |
Appreciate
0
|
06-05-2013, 03:36 AM | #108 |
Lieutenant
37
Rep 433
Posts
Drives: 335i wagon, Pure Stage 2+PI...
Join Date: Sep 2012
Location: Sweden
|
'Proper values'
Have been searching for a complementing list to this thread that is useful for all of us learning the ropes.
The list I would find really useful basically consist of four columns: 1. List of values available to log (data log list) 2. Explanation of the values in col. 1 3. General intervals for what the logged values should look like (proper intervals) 4. Possible explanations for deviations from "proper intervals" There should be a list of this kind somewhere, but where is it? And yes, I have tried searching. Cheers, OB |
Appreciate
0
|
06-05-2013, 06:08 AM | #109 | |
Major General
161
Rep 7,377
Posts |
Quote:
if you have TPS closures add as well maf req ... and boost setpoint. In order to understand how to read and what are the proper one you need to read a lot here and learn. Also check the ATR pdf how to that cobb did. lots of explanations there
__________________
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
|
06-05-2013, 06:12 AM | #110 | |
Freude am fahren
71
Rep 1,968
Posts
Drives: E90 N54
Join Date: Mar 2010
Location: Doylestown, PA
|
Quote:
__________________
Cobb E40 PROtune by Jake@PTF/RR catless DPs/aFe DCI/ETS 5" FMIC/ER CP/Forge DVs/Alpina B3 TCU flash/BMW Perf. Exhaust./BMW Performance Style 313s/M-Tech Rear
|
|
Appreciate
0
|
Bookmarks |
|
|