E90Post
 


TNT Racewerks
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > New AA Tune (2017 updated version)



Reply
 
Thread Tools Search this Thread
      04-13-2018, 11:27 AM   #111
hassmaschine
Brigadier General
United_States
1987
Rep
4,729
Posts

Drives: "NBO" 330i
Join Date: Jun 2014
Location: earth

iTrader: (0)

You can change the parameters that cause it. It's definitely possible to tune for more power - how else do you think BPC made 500hp/tq with their N52 turbo?
Appreciate 1
Noir217.00

      04-13-2018, 11:46 AM   #112
atmosphericM
"Basic Bimmer"
United_States
327
Rep
674
Posts

Drives: E92 328i 6MT ///M
Join Date: Sep 2017
Location: B'ham

iTrader: (0)

Garage List
That's what I was thinking, so I don't understand why this is even an issue...
Appreciate 0
      04-13-2018, 11:59 AM   #113
tom.gnade
3IM, AA tune, Euro/Rev intake
United_States
46
Rep
190
Posts

Drives: 2013 328i coupe
Join Date: May 2016
Location: Forest Hill, MD

iTrader: (1)

Quote:
Originally Posted by atmosphericM View Post
It sounds like AA is nerfing the tune a bit to deal with the parameters, but I wish they would/could just change those parameters! It's sounding like these motors can make more power than BMW is comfortable with them making or something? To save the transmission? Hmm maybe the DME just doesn't like for the TQ to come on too quickly which the tunes are causing? Of course I don't know anything about these TQ parameters, but wouldn't someone that is boosted constantly trigger this limp mode? Odd indeed.
I'm guessing wildly but I do have some very pig heavy wheels that would have significant rotational inertia and may be causing the measured torque value to jump up above the limp mode threshold. I suppose it's also possible that this only happens at WOT in DS mode above 3500rpm, and only some of us routinely hit those levels enough to trigger the fault. The revised V3 tune they sent me to avoid the fault is definitely a little less edgy than the previous version I was running, and the fault frequency has been lower, but it needs to be eliminated completely.
Appreciate 0
      04-13-2018, 12:01 PM   #114
Taskmaster
Major General
Taskmaster's Avatar
Japan
2201
Rep
8,440
Posts

Drives: E92 LCI Msport 6 Speed
Join Date: Nov 2013
Location: Florida

iTrader: (5)

Quote:
Originally Posted by hassmaschine View Post
You can change the parameters that cause it. It's definitely possible to tune for more power - how else do you think BPC made 500hp/tq with their N52 turbo?
What's the point of the limiter anyhow? And why not just bump it up to something like 300wtq?
__________________
Axiom - E92 Msport 6MT: Bolt ons - MILV - BPC tune.
Appreciate 0
      04-13-2018, 12:07 PM   #115
hassmaschine
Brigadier General
United_States
1987
Rep
4,729
Posts

Drives: "NBO" 330i
Join Date: Jun 2014
Location: earth

iTrader: (0)

the torque management system is just complicated. Modern DMEs don't really monitor "load" in the sense that they used to - everything is based on demanded/expected/actual torque.
Appreciate 0
      04-13-2018, 12:11 PM   #116
tom.gnade
3IM, AA tune, Euro/Rev intake
United_States
46
Rep
190
Posts

Drives: 2013 328i coupe
Join Date: May 2016
Location: Forest Hill, MD

iTrader: (1)

Quote:
Originally Posted by hassmaschine View Post
the torque management system is just complicated. Modern DMEs don't really monitor "load" in the sense that they used to - everything is based on demanded/expected/actual torque.
What I don't get it why BMW wouldn't just bump traction control a few times first before throwing a limp mode fault. The torque monitoring system is probably designed to prevent mechanical failure of the transmission or other driveline components but in this case the values were obviously set artificially low because 328.
Appreciate 1
      04-13-2018, 12:13 PM   #117
hassmaschine
Brigadier General
United_States
1987
Rep
4,729
Posts

Drives: "NBO" 330i
Join Date: Jun 2014
Location: earth

iTrader: (0)

it's nothing to do with traction control. They knew what the engine output was when they tuned it - it's not a limiter exactly, it's more like the engine was tuned for a specific output, so that's what the expected torque table is looking for. If it's way outside the expected value the DME assumes something is wrong, because from the factory it would never be tuned that way without adjusting the expected values as well.
Appreciate 1
      04-13-2018, 12:27 PM   #118
atmosphericM
"Basic Bimmer"
United_States
327
Rep
674
Posts

Drives: E92 328i 6MT ///M
Join Date: Sep 2017
Location: B'ham

iTrader: (0)

Garage List
Quote:
Originally Posted by tom.gnade View Post
because 328.
LOL I'm going to start using this.

It's starting to seem like AA needs to offer hass a contractor position lol. The dedication that a few of our members here have to our N/A community is, well, frankly pleasantly surprising and very-much-appreciated by myself as well as others for sure. I know it's a hobby of y'all's, but going out of your way and taking the time to share what you learn with others is a whole 'nother thing entirely. Humanity has hope! (Can you tell I had my coffee this am lol??)

Maybe this is why there is no steam in the AA MILVS tune pipeline... can you say constant limp mode?

Hmmm

Last edited by atmosphericM; 04-13-2018 at 12:42 PM.
Appreciate 0
      04-13-2018, 01:25 PM   #119
FlaPatsFan
Captain
343
Rep
634
Posts

Drives: 2011 328i wagon
Join Date: Apr 2017
Location: Florida

iTrader: (0)

Hey guys....reading thru all the posts on this thread, should I be concerned with getting the new AA tune? I have my headers and will be installing soon. All this ď limp mode talkĒ has me a bit concerned. I havenít had any issues with the AA v2 tune that Iím currently running with my mods.

Thanks for all the good info btw, itís much appreciated!
Appreciate 0
      04-13-2018, 01:51 PM   #120
W37V
[Oo=||=oO]
No_Country
567
Rep
1,643
Posts

Drives: Car
Join Date: Aug 2014
Location: Location

iTrader: (0)

Quote:
Originally Posted by FlaPatsFan View Post
Hey guys....reading thru all the posts on this thread, should I be concerned with getting the new AA tune? I have my headers and will be installing soon. All this ď limp mode talkĒ has me a bit concerned. I havenít had any issues with the AA v2 tune that Iím currently running with my mods.

Thanks for all the good info btw, itís much appreciated!
I donít think you should be concerned. Itís hit or miss. There is a lot of people running these tunes, and only handful reported any issues. I never had an issue with it. Had a code show up when I was on v2 of the tune right after the install, but it never caused the a limp mode. I briefly run this tune and other than o2 sensor codes, it didnít cause any other codes.
Appreciate 0
      04-13-2018, 08:33 PM   #121
3002 tii
Lieutenant General
3002 tii's Avatar
United_States
926
Rep
10,886
Posts

Drives: E85, F25, I3
Join Date: Apr 2008
Location: CT

iTrader: (86)

Garage List
Just did my first event of the year, really liking the new AA “aggressive” tune. Nice low end torque (good for street) and pulls nicely through 7200.

http://www.e90post.com/forums/showpo...1&postcount=72
__________________
Appreciate 2
Phyrexia281.50
Noir217.00

      04-20-2018, 12:57 PM   #122
banshee28
Private
3
Rep
70
Posts

Drives: 2006 330i 6MT ZSP
Join Date: Feb 2011
Location: FL

iTrader: (1)

I have this latest AA tune ands it been very solid for the past few months! Definitely an overall improvement from the previous one, noticeably a little more low end tq.

No issues so far!
Appreciate 0
      04-20-2018, 01:26 PM   #123
FlaPatsFan
Captain
343
Rep
634
Posts

Drives: 2011 328i wagon
Join Date: Apr 2017
Location: Florida

iTrader: (0)

Quote:
Originally Posted by banshee28 View Post
I have this latest AA tune ands it been very solid for the past few months! Definitely an overall improvement from the previous one, noticeably a little more low end tq.

No issues so far!
Good to hear 👍
Appreciate 0
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -4. The time now is 07:56 PM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST