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All COBB Tuning AccessPORT Flash for N54 335i Discussion Here
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08-14-2012, 04:33 PM | #6007 | |
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If you are having 0 timing corrections thats a good sign that the car really likes the map. There's more to it than just timing corrections, but that is a big part of it. Hope that made sense, I'm not great at explaining things. When I get home I'll get some screen shots and post them up to help understand timing. |
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08-14-2012, 05:00 PM | #6008 | |
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I just did a couple more pulls and changed what I logged from the default. I added Timing Cor. (CAT/ECT). I assume this is the correction for Charge air temp being too high or engine coolant temp? I saw it start to pull timing after my CAT got to 113 F, but that correction didn't show up in any of the Cyl# Timing Cor fields. Is that normal? Last edited by MTR; 08-14-2012 at 05:09 PM.. |
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08-14-2012, 05:04 PM | #6009 | |
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Yes, the timing correction(cat/ect) is the channel displaying the IAT and engine coolant temp corrections. Those corrections are applied globally and do not appear as timing corrections. |
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08-14-2012, 05:41 PM | #6010 | |
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08-15-2012, 10:20 AM | #6011 |
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Here's a pic of the Timing tables responsible for IAT induced timing reductions
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08-15-2012, 04:11 PM | #6012 |
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New Cobb user here...installed Stage 1 Aggressive.
I currently run ~1.25 gallons E85, the rest 93. I'd like to record some logs just to make sure I'm pushing anything too far. I'm curious - what are the preferred or relevant items to log? |
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08-15-2012, 04:58 PM | #6013 |
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Use the default logging channels. Add STFT bank 1 and LTFT bank 1
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08-15-2012, 05:54 PM | #6014 |
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08-15-2012, 06:27 PM | #6015 |
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Long and short term fuel trims. Running just a couple gallons of E85 isn't going to hurt anything, and the only thing it will help is if your base gasoline is crap (like in Arizona, California, and Nevada).
Basically, you don't want your STFT to ever be 34% (max) and ideally it should be under 20%. You won't have to worry about getting near that with just E15 (which is about what you're running with that mix). If you really want, download AccessTuner Race and modify the map to use a fuel scalar of 1.03. |
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08-15-2012, 08:47 PM | #6016 |
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hey guys around how many HP should my car get with 95 RON(although im not sure if its really in RON in saudi arabia)=91 octane
1.cobb stage 2 2. vrsf 3" dp 3. stett cai
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08-15-2012, 09:31 PM | #6017 |
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Drives: '08 E90 335i
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Check COBB's website & look for the Map Notes section. It'll give a dyno graph with estimated power numbers
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08-16-2012, 07:28 AM | #6018 | |
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08-18-2012, 09:41 AM | #6019 |
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Did a 3rd gear pull to check STFT and LTFT. Can someone please interpret the log for me?
A few things I noticed: 1. Looks like the TPS closed on me twice as actual boost crept above requested boost. Is there anyway to avoid this? 2. Pulling some timing as CAT got above 113 F. How much HP does pulling a degree or two of timing equate to? 3. Boost tapering to 9 PSI towards redline. Is this much of a drop off normal? 4. Am I too lean on spool up? At 3900 RPMs I'm already at 13.5 PSI but my A/F is still ~13.0. Shouldn't it be closer to 12 at this point or is that only at higher RPMs? Is this connected to the STFT? It hits 27, well above the 20 that was recommended as ideal. Thanks for the help. |
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08-22-2012, 12:21 AM | #6020 |
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Data Logging Glitch
After the AP Firmware Update 1.6.5.0-4519, my data logging appeared to be normal on 8-15.
I typically use "boost" as my on screen view when data logging. but tonight when trying to select "boost" as my on screen view when data logging, it wouldn't engage. It said "logging" for a split second then went back to the main menu. Data logging with "WDGC" as my on screen option work as normal, but not the "boost" I didn't try any others. Anyone experienced this before?
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08-22-2012, 04:48 PM | #6021 |
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There's a new update (v1.6.5.0-4570), so maybe give that a shot.
I haven't had your specific problem, but I do remember having a problem with the AP just dropping communication with the ECU whilst logging. I haven't had the issue the last few times though, so perhaps it was fixed with a later firmware. |
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08-22-2012, 04:54 PM | #6022 |
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I'm not sure if this question has been asked before. I wasn't sure what to search for so here goes. If a car as the COBB tune installed, is it possible for another person to re-install the tune from another AP?
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08-22-2012, 05:14 PM | #6023 |
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NOPE. Once it's Installed, it's "married" to that car until you Uninstall the tune
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08-22-2012, 05:26 PM | #6024 |
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08-22-2012, 07:20 PM | #6025 | |
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the response was as long as the car has power and can communicate to the ECU you are good to go. My specific question was "what if the car had a malfunction, (undrivable) can I re flash to stock before going to the dealer"
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08-22-2012, 07:24 PM | #6026 | |
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08-22-2012, 07:34 PM | #6027 |
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Remember, when you flash the car is OFF. So let's see you get in an accident (God forbid) or for whatever reason the engine won't turn on. As long as you can get the Auxiliary Power on (radio, fan blowing, headlights on), you'll be able to flash back to Stock before the tow truck shows up.
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08-23-2012, 10:30 AM | #6028 | |
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WGDC ceiling - adder ? - spool ? - base ? thank s
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2007 335i coupe AT-- I80AS--FBO -stock turbos--COBB v402 beta stage 2 + ATR-- NITTO'S 275-40-17 NT05R --- 12.025 @ 120 mph -- full weight
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