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All COBB Tuning AccessPORT Flash for N54 335i Discussion Here
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11-26-2012, 10:00 AM | #6623 | |
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11-26-2012, 12:19 PM | #6624 |
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11-26-2012, 02:29 PM | #6625 |
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So these are my two datalogs from last night with v. 4.02 Stage 2 + FMIC.
Anybody see any issues with these? Mods are: Vishnu DCI's, VRSF FMIC, VRSF catless DP's, VRSF exhaust. Was considering raising the load target above 5000rpm to 6500rpm to 190 to try to hold on to some top end power, and maybe adding 1 degree of timing in the 180 load column. Most of the time in 3rd/4th I shift the car at 6000rpm anyway. The second run was about 10 seconds after the first, I did one third gear pull, logged it, then did another pull right after braking down. Edit: In the second datalog, the timing corrections were in cylinders 1, 2, & 5, and were only 3.38 degrees each Thanks for any input Last edited by DallasBoosted; 11-26-2012 at 02:35 PM.. |
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11-26-2012, 05:44 PM | #6626 |
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The logs looked solid. Like you said you had a couple corrections in the second log but nothing to fret over. Also, you weren't having overboost induced throttle closures that a lot of people are having with the + maps so that's good.
You could definitely experiment around with ATR to see what you can do. With my car on 93 i've found it beneficial to actually pull a little boost out and bump up the timing a little, but different cars respond differently so you may able to just bump up the timing a touch without having to drop the boost.
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11-26-2012, 06:14 PM | #6627 | |
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11-26-2012, 07:05 PM | #6628 | |
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However, upping requested load can affect timing but not like you're thinking. When you change requested load(up or down) then you change actual load. Actual load determines timing(as you can see when you look at the main timing table.) So, just keep in the timing table in mind when adjusting the load table.
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11-27-2012, 05:03 AM | #6629 |
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Has anyone tried Cobb E30 v4.03 w/ stock pipes and exhaust
I'm running Stg1+FMIC and have access to E85...anyone try the E30 map with stock exhaust? Any issues? Thanks.
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11-27-2012, 09:58 AM | #6630 |
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I'm not running COBB's E30 Map, but I have an E85 ProTune that's for ~40% Ethanol with the Stock CBE (catless DPs). If you're gonna buy E85, I highly recommend buying from the Shell on Vine Street in Philly
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11-27-2012, 07:51 PM | #6631 | |
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Right now I'm running a summer PTF e-tune from Jake that's been starting to pull timing now (-6, -8 degrees) in the colder weather, so I threw in a few gallons of E85 with a Vpower fill-up and everything settled down nicely. Since I'm already at ca. E25, another gallon of E85 brings me to E30, but the Cobb OTS E30 map requires DP... |
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11-27-2012, 08:16 PM | #6632 | ||
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Most likely your ProTune runs similar timing as our OTS E30 map, so I doubt there would be much if any gain from going with our OTS. Jake is a good guy and I'm sure he could let you know if there's more to be had. Quote:
The 403 maps are the same as 402 as far as timing goes. We upped the version when they went from beta to release. We tweaked the WGDC table for some overshoots we were seeing, but even 91 customers seemed to have solid timing logs if using a proper mix, so we approved them for 91 as well. Keep in mind that these maps are really aggressive regardless, so make sure you log. If you're seeing corrections, you can use ATR to pull some timing, or contact one of our ProTuners if you want as much power as possible for a specific car. -Josh |
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11-28-2012, 12:42 AM | #6633 |
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Let me get this straight, in order to run the COBB OTS E-30 v403 Map.
To get 30% Ethanol with California ACN91 & E85. I should mix 50% E85 & 50% ACN91 correct? |
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11-28-2012, 12:21 PM | #6634 | |
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E30 means 30% ethanol. Which is at min. 4.25 gallons of E85 to a full tank. With 91 you may have to mix slightly more. Based upon 91 having 10% ethanol. But log to be sure. http://www.intercepteft.com/calc.html. Use this calculator at the bottom. E85 is 96 AKI octane to 91 octane AKI.. Which comes to about 92.3 AKI octane.
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SOLD:: PTF Pro eTune by Dzenno / COBB S1+ E50 Alpina B3 Flash / ETS FMIC / ER CP / CPE DCI Last edited by VNeBLOB42; 11-28-2012 at 12:28 PM.. |
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11-28-2012, 12:27 PM | #6635 |
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quick newb question, is there a way for the AP to show boost in PSI instead of BAR?
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2008 335xi AW/Black MT
383 awhp/410awtq Avant Garde M359 l Hankook Ventus V12 l Kw V1 l M3 Front+sides | Mtec Rear | LCI tails l Cobb Stage2+FMIC l AR DP l ER IC l ER CP l Tial BOV | AFE Stage2 DCI |
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11-28-2012, 12:31 PM | #6636 | |
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EDIT: What VNeBLOB said below. Select "? Access port" then "settings" then "units" and then "standard."
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11-28-2012, 12:31 PM | #6637 |
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Yes, I believe it's under one of the menus on the AP. can't remember what it's called. But I believe it's either metric or standard overall. Not sure if you can changed just 1 entity.
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SOLD:: PTF Pro eTune by Dzenno / COBB S1+ E50 Alpina B3 Flash / ETS FMIC / ER CP / CPE DCI |
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11-28-2012, 01:26 PM | #6638 |
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Cobb, please remove this useless cat warm-up cycle. I'm catless and my neighbors will kill me one day. Half the village awakes every morning when I start my car.
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11-28-2012, 05:06 PM | #6639 |
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11-28-2012, 07:53 PM | #6640 | |
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Would it cause any harm to run that high of a mix? According to the calculator you linked I should be mixing 9 gallons of 91 & 5 gallons of E85 to get 36.5%. (I'd like to run 5% higher ethanol content as a buffer). |
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11-28-2012, 08:12 PM | #6641 | |
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11-28-2012, 11:41 PM | #6642 | |
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^^^ This
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SOLD:: PTF Pro eTune by Dzenno / COBB S1+ E50 Alpina B3 Flash / ETS FMIC / ER CP / CPE DCI |
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11-28-2012, 11:58 PM | #6643 | |
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Few questions though. 1. When data-logging, the Cobb AP only allows for a handful of variables to log. Cobb suggests the ones to log on the warning page for the E30/Race Maps. But it looks to me like not all variables are matching up on the site with the ones in our COBB AP and one or two essential ones I feel are missing. Such as "Boost". But when I try to add boost to the datalog variable list, it gives me an error stating I have selected too many variables and that I should remove some and try again. Can I get a definitive list of the important variables to datalog on the Cobb AP for running an E85/91 Mix. http://www.cobbtuning.com/v/vspfiles...FinalAlpha.pdf ^- lists a handful, but fails to add-in the all important LTFT/STFT's, and even without those fuel-trim variables they list too many. (I counted 32) 2. The AccessTUNER help file pdf I linked above is the only "tuning guide" I could find. I read through the whole thing and it doesn't go over playing with the "fuel scalar" values. Could you point me in the right direction as to which guide it is? --EDIT:: Looks like I found the answer to this here: http://accessecu.com/cobbtuningweb/s...lpFile_BMW.pdf Seems like someone at Cobb removed the fuel scalar table from the Final-HelpFile. After looking at the fuel scalar table. I think i'll make it easy on myself and continue with the 50/50 E85 & ACN91 Octane Mix. Which makes for a 47.5% ETHANOL content. (7 Gallons @ E85 & 7 Gallons @ ACN91 OCT) [135i has a 14 gallon tank]. I'd like to ask one more time though, there will be no harm in running this high of a mix correct? The OTS E-30 map should run this just fine, assuming I get the fuel scalar values locked down and the STFT/LTFT's down to as close to 0 as possible correct. 50/50 E85 & ACN91 = 47.5% ETHANOL content. However I'll set the fuel scalar at 44% ETHANOL content, to account for Winter E85 blend & station discrepancies. Cant wait till tomorrow, going to fill up and give the E44 Scalar a try. 3. When using AccessTUNER software, the guide above says to "Attach the OBDII cable to the vehicle and the associated USB cable to the computer". Does that mean I should connect the "CAR -> OBDII -> COBB AP -> USB -> COMPUTER". 4. Lastly, I want to give my thanks to Cobb for providing us such a great product. The COBB AP is indefinitely better than the other tuning options out there right now for my needs. Its easy to install, simple to datalog (no need to run a USB cable from engine bay + computer in passenger seat), and as of recently allows for us to make stupid amounts of power easily with the E-30 & Race Maps. Coming from the Cobb dominated Subaru world, I was so happy to see you guys announcing your introduction to the BMW N54 family late last year. Last edited by sparkyblue; 11-29-2012 at 01:52 AM.. |
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11-29-2012, 08:34 AM | #6644 |
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1. Here's what I would use for initial E30 map logging. Once everything looks ok, you can change these up to monitor different things. For example, if you're not getting boost overshoots/throttle closures, you can get rid of MAF Req(WGDC) and Boost Setpoint Factor as they're only needed for the axis to adjust the WGDC table.
Lambda (Bank 1) Lambda (Bank 2) Ped Pos. (%) TPS Act. (%) Timing Cor. (1-6) Timing Cyl. (1) Load Act. Load Req. MAF Req. (WGDC) Req. Boost Abs. Boost Mean Abs. Boost Set point Factor Boost RPM STFT 1-2 LTFT Bank 1-2 2. You should be fine with that map and that mix as long as you adjust the scalar and your logs look clean. More ethanol generally means more knock resistance (which is a good thing). Also, for those that don't know... The Tuning Guide is also bundled into ATR/ATP, just click 'Help' in the Help menu. 3. You have the hookup correct. Just make sure that you click Ctrl+F, select your Gauges, then click 'Copy To Log' so that the same monitors will be in your log as your gauge list. You can also use the AP by itself for logging, but you'll only have one gauge to view in that case. 4. Glad you're enjoying the AP! Let us know if you have any other questions and we'll do what we can to help you out. -Josh |
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