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All COBB Tuning AccessPORT Flash for N54 335i Discussion Here
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10-06-2011, 02:20 PM | #2663 |
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Having the Cobb installed shouldn't be a problem....its just that every time you update the map it wipes out your emission readiness and you have to drive it X number miles before its ready again.
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10-06-2011, 03:31 PM | #2664 | |
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I didn't bother to ask what wasn't ready as I was in a hurry, but I'm going to throw an OBDII scanner on when I get home and see how I look now, approx 50 miles since uninstall (will also hit the generic OBDII drive cycle on the way). |
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10-06-2011, 08:33 PM | #2665 |
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Got my cobb yesterday, thanks jeff at topgear...First thing i did was update firmware to 3.01, didn't add any maps cause i didn't know what rom i had yet. I live in CA and only have crap ACN 91 out here so i tried Drive first and wasn't too impressed, but only drove with that map for maybe 60 miles. Went down to Ventura and they have an e85 station and decided to fill up with 3/4 tank 91 and got 4.5 gallons of e85 in there. Switched to Aggressive and holy crap! That's more like it!
One thing that happened after i switched maps to agressive was the brake malfunction came up on the i drive so I turned the car off then back on and it was still there, then without shutting the car off it went away a few seconds later. Went in the the check control and it said car was all good. Kinda wierd, then i go to put it into reverse, I have a 6at, and it clunks into gear real loud. Put it back in park, try reverse again same clunk. Kinda like when you park on a hill and go to put it into gear and will clunk, but at the time I was on a level parking lot. Drove for another hour or so and now its shifting nice and quite when going into reverse. I did do one quick log but microsoft office isn't working on my laptop and i wouldn't know how to plot them either. So if I can email the log to someone and have them post it and tell me if the car is running okay that would be most appreciated. Never threw any codes and pulled like a mofo, but i did feel some slight hesitations, perhaps throttle closures. I saw boost as high as 15lbs and lambada was mid 11's at wot. I dont know if that's even accurate though because of the e85. When logging the lambada it shows the max/min at the bottom i noticed it got as low as 10.8 but i doubt it was for more than a milli second. |
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10-06-2011, 08:46 PM | #2667 |
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I don't know how long i searched through the logging channels looking for a/f ratio to no avail. Finally i just started logging every channel till i found LAMBDA and was like "ohhhhh there u are" Also whats the difference between bank 1 and 2?
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10-07-2011, 12:47 AM | #2668 |
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the difference is that 1 is cyl 1-2-3 and 2 is 4-5-6....
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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
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10-07-2011, 10:04 AM | #2670 |
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There is an AP update available
AP-BMW-001 v1.6.5.0-2751
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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
Last edited by enrita; 10-07-2011 at 10:10 AM.. |
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10-07-2011, 10:07 AM | #2671 |
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Got my car on the rollers (dynojet) with Stage 1 Aggressive... couldn't be happier! With only having exhaust from downpipe back and secondary cats removed the car laid down 338hp/375lbft SAE 354hp/392lbft uncorrected (dyno room temp was about 88-95 deg), very happy!
Last edited by rbsileighty; 10-07-2011 at 10:16 AM.. |
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10-07-2011, 10:16 AM | #2673 |
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Has anyone done a dyno from stock to Stg2+ no FMIC?
Also: apologise for a n00b question, but a FMIC in and of itself does not provide hp gains - it's more for avoiding heatsoak in higher temps and flowing cooler air to the turbos at high boost, ya? I.e., if it's 5 degrees outside and you aren't tracking then, technically, you wouldn't a) gain anything by having a FMIC and b) Stg2+FMIC can be used on the stock intercooler?
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10-07-2011, 10:20 AM | #2674 | |
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Drives: passively aggressive.
Join Date: Nov 2005
Location: probably in a hotel thousands of miles away from home.
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I don't know if the problem has disappeared because I make sure to park the car in such a way that I do not need to put it in reverse after changing maps. COBB said that this is because the transmission adaptation is reset during a map change. However, this has only happened with the COBB AP; this does not happen if I flash the car back to stock, for example, or if I reset the transmission using the BT tool. I would expect more people to experience this if it was normal. It definitely feels like something that should not be happening. Have you experienced any issues with the transmission not shifting into the next gear at redline at lower gears? This is another issue that is common in my car, but not present in most other COBB cars. |
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10-07-2011, 10:20 AM | #2675 |
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AP update, not maps. maybe they fixed the boost bug? or preparation for official Stage 2 with stock throttle ?
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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
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10-07-2011, 10:34 AM | #2676 | |
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10-07-2011, 10:47 AM | #2677 | |
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10-07-2011, 01:28 PM | #2678 | |
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No, other than the clunk going into reverse the tranny seemed to shift normally. I didn't drive the car hard for the first 20 minutes or so to let the e85 mix with the 91. And only did 2 wot pulls. Need to do some more logging to make sure shes running okay. I did find a cool website that has a calculator for determining octane when mixing e85 with regular gas. check it out: http://www.intercepteft.com/calc.html |
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10-07-2011, 01:48 PM | #2679 | |
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Cheers, Rob |
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10-07-2011, 01:52 PM | #2680 |
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10-07-2011, 03:09 PM | #2682 |
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When I go on Cobbs website and then into firmware etc that one isnt listed Enrita "-2639" is that most recent one I see listed, unless I am looking in the wrong spot
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10-07-2011, 03:15 PM | #2683 |
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So I changed the plugs today hoping my car would run better , feels about the same ...
Ever since 301 , car just seems flat till 4k rpm, I guess it could just be my butt dyno or 301 is just too linear. Almost feels like I am bogging it with meth .... I wish I had a better way to trigger flow than off boost ... I am at 100% injection by 2.8k rpm. |
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10-07-2011, 03:24 PM | #2684 | |
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There is no benefit to the traditional meth setup on stage 2+ unless you run maybe a m1 or m3 nozzles for IAT and knock suppression. Methanol wont be advantageous until Race maps/methanol maps, or ATR protune. |
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