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All COBB Tuning AccessPORT Flash for N54 335i Discussion Here
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02-22-2014, 03:56 AM | #8361 |
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Drives: bmw 335i convertible 2007
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Cobb Tuning for sale
Used it once for tune and once to return to factory settings. Asking $500
I used it for N54 E92: |
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02-22-2014, 07:57 AM | #8362 |
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Drives: E90 N54
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02-24-2014, 11:57 AM | #8365 | |
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please lmk if I did it right its my first time doing it. |
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02-24-2014, 07:25 PM | #8366 | |
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Other then the overboost issue the log looks pretty good. |
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02-24-2014, 08:35 PM | #8367 | |
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02-24-2014, 08:50 PM | #8368 | |
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02-24-2014, 09:03 PM | #8369 |
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There has been some unusual activity reported immediately post flashing. There has been no longterm negative performance to the best of my knowledge.
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02-25-2014, 01:22 PM | #8370 |
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HELP!
Hello, I own a 335i E90 N54 auto here in Brazil.. It has AMS DP, K&N inbox, COBB, and AA BOV . Everytime I change my current map with the cobb system, the car seems to be stuck in 2nd or 3rd gear for a while, and suddenly it drops to 1st after a few ft of driving and everything stays normal. This only happens right after I switch the map, when I turn on the car. And only one time every time the map is switched. Also, if I select Reverse before the car has dropped to 1st, there is a big CLUNK noise coming from the transmission. Why does this happen? I cant seem to find any plausible answers on Google or any other source. Also, the car missfires a little bit in its first start in the morning. Thanks guys! |
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02-25-2014, 02:12 PM | #8371 | |
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02-25-2014, 06:33 PM | #8372 | |
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Drives: 2008 335xi E90
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MHD Self-Tuned Scaled FlexFuel Map | M-Boost | N20 Tmap | Helix IC | Fuel-It Stage 2 LPFP | BMS DCI | BMS Thermostat Delete | CP-E Charge Pipe | Tial-Q BOV | Apex Arc-8 Hyper Silver | Michelin PSS | Cool Carbon Brake Pads R/T | SS Brakelines | ECS 2-Piece Rotors F/R | xHP Stage 3 | xDelete Sport | KW-V1 Coilovers | Turner Strut Brace | Lux Angel Eyes | CF Kidneys | Scoops
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02-26-2014, 05:49 AM | #8373 |
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Also, someone mentioned here about a certain Turbo lag witht eh Cobb Stock maps, and that definently happens with my car.
Drove a friend´s 335i with a custom map, but considered Stage 1, and it was a LOT stronger down the rev band, while my car only wakes up mid-top the rev band. It does not even feel like a TT car with that behaviour. Is that normal for cobb map? Im running Stage 2 agressive Without FMIC. My car has the Alpina TCU, Downpipes, and BOV/chargepipe. Any input on that would be very helpful! Is there a way to download new Cobb maps, sort of updated ones? Thanks! |
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02-26-2014, 11:09 AM | #8374 | |
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Not for nothing, it shouldn't be surprising that more lag exists vs. the OEM tune which peaks at 8-9 psi, when I believe even the Stage 1 Maps go to ~12 psi. You've raised the target, it will naturally take a little longer. By no means the N54 with stock turbos is laggy though, cause if you think it is just go for a ride in a big turbo EVO that probably won't go on boost until 5K.
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02-26-2014, 11:30 AM | #8375 |
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I understand, I own a Porsche 930 Turbo with Black Forest Racing engine, strocked to 3.5 liters and 1.5 kg boost on the bigger Turbo, while the stock car peaks at 0.8.
Now thats what I call a Turbo lag. Up until 4, 4.5K RPM, there no virtually no boost. Then, all hell brakes loose. How can I measure data log, boost etc on Cobb? I am really a newbie with the system. |
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03-02-2014, 03:42 PM | #8376 |
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hey guys i have a question! on my log my req boost seems way high but my actual boost seems to be where it needs is this something normal on cobb? its my first log just trying to get a better understanding http://datazap.me/u/chepy24/log-1-ag?log=0&data=1-8-20
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03-02-2014, 04:09 PM | #8377 | |
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PSIg + atmospheric = absolute PSI As far as your log is concerned it looks pretty good aside from the boost oscillations you're having down low. |
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03-02-2014, 04:17 PM | #8378 | |
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03-02-2014, 04:44 PM | #8379 |
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In this case it appears it's an issue with the PID tables and should be resolved easily by a good tuner that is familiar with the N54.
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03-02-2014, 04:46 PM | #8380 | |
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that clunk is not your transmission. Its your floating brakes ,,,its a common issue with our cars . |
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03-02-2014, 05:55 PM | #8381 | |
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However, right after I flash a map and drive off the car seems to stay in 3rd gear until I get going fast enough for it to up shift to 4th. I see this behavior regardless of TCU flash. After it completes the first up shift to 4th then it reverts back to normal shifting behavior from there on out. I have a feeling this is standard behavior right after a new map is flashed. I have an 09 AT x drive.
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03-02-2014, 06:40 PM | #8382 | |
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