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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > All COBB Tuning AccessPORT Flash for N54 335i Discussion Here



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      11-20-2012, 12:53 PM   #6557
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Quote:
Originally Posted by BlueBimmer View Post
I tried this but everytime I get into 3 and around 2500 RPM and hit the throttle , it downshifts to second (regardless of what shift I am selecting using the automanual sport mode. Every run was started in third and immediately shifted to second through WOT and then to third. Is there a way to prevent the car from downshifting, (I can try to squeeze the throttle instead of going WOT right away - but by the time I hit WOT I'll be at least at 4500 RPM or so to prevent downshifts) Attached are new logs ... any help appreciated. thanks!!
Quote:
Originally Posted by 335twins View Post
thats what i figured, well i will try some tonight, hard to find open empty road to WOT the car. How do i do this with auto? just floor it? or use paddle shifts? i got the DTC off but where is DSC? i only have DTC on my car.

Thanks

hey guys,

i know it sucks, but it can be done. Practice feeling the kickdown. The best I have done was WOT at 3800 RPM.


But if you do this, your worries go away.

see page 292 post 6413

http://www.e90post.com/forums/showpo...postcount=6413

see link at bottom of this post, to find a more fixed solution.

good luck!
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      11-20-2012, 01:31 PM   #6558
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sounds good, will try it and report back with logs.

Thanks

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Originally Posted by VNeBLOB42 View Post
Haha, good ol autos. That's what I got. You have to improvise. Let me find my post I think it's a few pages back. You can't push the pedal to the metal because you will hit the kick down. Unless you do what I did.

Paddle or the manual shifter will work. Just put it in M3.

DSC, you have to hold down the DTC until you get the big triangle with a circle around it. Just a few seconds.

Be sure to have a safe stretch of road, flat. With stabilization and traction off, you must be careful., you'll reach close to 100 mph 3rd gear redline (about 90 in sport I think). But it only takes about 9 sec.
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      11-20-2012, 04:11 PM   #6559
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so looking at the logs, is stage 1 drive and sport pushing 14psi? i thought sport was more power?

Quote:
Originally Posted by VNeBLOB42 View Post
hey guys,

i know it sucks, but it can be done. Practice feeling the kickdown. The best I have done was WOT at 3800 RPM.


But if you do this, your worries go away.

see page 292 post 6413

http://www.e90post.com/forums/showpo...postcount=6413

see link at bottom of this post, to find a more fixed solution.

good luck!
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      11-20-2012, 04:19 PM   #6560
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Quote:
Originally Posted by 335twins View Post
so looking at the logs, is stage 1 drive and sport pushing 14psi? i thought sport was more power?
Sport i believe ~14 psi tapers down to ~11 psi is the target... I have never ran Drive so I am not sure.

S1 Agg. is ~15 - ~11, I have got into the ~16 psi range on some logs.

S1+ Agg. ~17 - ~11, with some peaks at 18.5


Also, take a look at your timing, your timing will be higher in Sport than Drive. and no timing corrections.
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Last edited by VNeBLOB42; 11-20-2012 at 04:24 PM.
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      11-20-2012, 04:28 PM   #6561
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interesting, at one point i hit 16psi on drive map, i hope that's normal.

Quote:
Originally Posted by VNeBLOB42 View Post
Sport i believe ~14 psi is the target... I have never ran Drive so I am not sure.

S1 Agg. is ~15, I have got into the ~16 psi range on some logs.

S1+ Agg. ~17, with some peaks at 18.5
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      11-20-2012, 07:33 PM   #6562
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Quote:
Originally Posted by 335twins View Post
interesting, at one point i hit 16psi on drive map, i hope that's normal.
well it wont hurt. I do know the v401 MAPs are more aggressive than the v300 MAPs. You may also be getting throttle closures due to "over boost" which I can't tell until we get some better logs. If so its an easy fix with ATR, as reported with other users...

FYI, I hit ~19 psi mid range with my stock turbo's. PTF Pro Tune FTW!
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      11-20-2012, 07:59 PM   #6563
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Quote:
Originally Posted by BlueBimmer View Post
I tried this but everytime I get into 3 and around 2500 RPM and hit the throttle , it downshifts to second (regardless of what shift I am selecting using the automanual sport mode. Every run was started in third and immediately shifted to second through WOT and then to third. Is there a way to prevent the car from downshifting, (I can try to squeeze the throttle instead of going WOT right away - but by the time I hit WOT I'll be at least at 4500 RPM or so to prevent downshifts) Attached are new logs ... any help appreciated. thanks!!
overall not too bad. It appears some throttle closures when you hit ~16 psi. (log 17) Try to get better, clean logs so we can look again. Timing corrections are not bad as well.

Try that pedal spacer, it will make logging a much more, exciting experience.
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      11-20-2012, 11:33 PM   #6564
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Quote:
Originally Posted by VNeBLOB42 View Post
overall not too bad. It appears some throttle closures when you hit ~16 psi. (log 17) Try to get better, clean logs so we can look again. Timing corrections are not bad as well.

Try that pedal spacer, it will make logging a much more, exciting experience.
Thanks man, much appreciated. If your ever in the Philly area, I owe you a beer.
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      11-21-2012, 12:20 AM   #6565
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Quote:
Originally Posted by BlueBimmer View Post
Thanks man, much appreciated. If your ever in the Philly area, I owe you a beer.


No problem bro.
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      11-21-2012, 12:55 PM   #6566
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How do you guys deal with the O2 cel light as I am about to install Cobb today.
Does it matter if I drive around with the cel for a while also ?
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      11-21-2012, 01:18 PM   #6567
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Quote:
Originally Posted by marcvtec View Post
How do you guys deal with the O2 cel light as I am about to install Cobb today.
Does it matter if I drive around with the cel for a while also ?
You're fine to drive around with cat ineffeciency codes until you can get the AP installed. Once the AP is installed any of the OTS stage 2 or stage 2+ maps will get rid of the CEL. Using ATR you can also disable the OBD2 readyness checks for any of the maps if you want.
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      11-21-2012, 03:13 PM   #6568
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Originally Posted by BlueBimmer View Post
Thanks man, much appreciated. If your ever in the Philly area, I owe you a beer.
If you want, I'll be down in the Philly area Tuesday (11/27) & can help you take some logs, show you what to read & what to look out for.
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      11-21-2012, 03:52 PM   #6569
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Quote:
Originally Posted by Ænema View Post
You're fine to drive around with cat ineffeciency codes until you can get the AP installed. Once the AP is installed any of the OTS stage 2 or stage 2+ maps will get rid of the CEL. Using ATR you can also disable the OBD2 readyness checks for any of the maps if you want.
Thanks
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      11-21-2012, 04:20 PM   #6570
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Quote:
Originally Posted by benzy89 View Post
If you want, I'll be down in the Philly area Tuesday (11/27) & can help you take some logs, show you what to read & what to look out for.
That's really cool of you benzy!

be sure to get that beer though..
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      11-21-2012, 06:12 PM   #6571
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That's really cool of you benzy!

be sure to get that beer though..
Just tryin to spread the COBB wealth -- And I'm thinking an IPA or Stout pint will suffice
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      11-21-2012, 11:09 PM   #6572
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Quote:
Originally Posted by benzy89
Quote:
Originally Posted by VNeBLOB42 View Post
That's really cool of you benzy!

be sure to get that beer though..
Just tryin to spread the COBB wealth -- And I'm thinking an IPA or Stout pint will suffice
Let me know if you wanna hit AZ, got a nice guest room, pool, jacuzzi and beer waiting..
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      11-21-2012, 11:41 PM   #6573
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Let me know if you wanna hit AZ, got a nice guest room, pool, jacuzzi and beer waiting..
If you're anywhere ASU, I might make it a trip just for their cheerleaders

Last edited by benzy89; 12-05-2012 at 11:11 PM.
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      11-22-2012, 12:15 AM   #6574
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^^^
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      11-22-2012, 12:16 AM   #6575
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Quote:
Originally Posted by 335twins View Post
Let me know if you wanna hit AZ, got a nice guest room, pool, jacuzzi and beer waiting..
Ill be in Vegas all next week, for work and play.
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      11-22-2012, 01:57 AM   #6576
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Quote:
Originally Posted by benzy89 View Post
If you want, I'll be down in the Philly area Tuesday (11/27) & can help you take some logs, show you what to read & what to look out for.
Sounds good but I have some work on Tuesday but maybe late afternoon or any other day in the afternoon. I'll still buy the beer.


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Ill be in Vegas all next week, for work and play.
Now I'm so envious, I don't even get to go to Atlantic City for work.
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      11-22-2012, 12:21 PM   #6577
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Sounds good but I have some work on Tuesday but maybe late afternoon or any other day in the afternoon. I'll still buy the beer.
I'm gonna be getting dyno'd in afternoon @ Undercover Performance (~1/2 hr from Philly) & will be in South Jersey for a good portion of the day. If you're interested send me a PM and maybe we can figure something out
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      11-22-2012, 01:02 PM   #6578
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How does Cobb work with something like the BMS can tool?
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