E90Post
 


TNT Racewerks
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > POst shift negative Timing drop OEM BMW map ? Know thing ?



Reply
 
Thread Tools Search this Thread
      07-30-2015, 01:14 AM   #1
Odan.be
Private First Class
26
Rep
84
Posts

Drives: Bmw E91 3351
Join Date: Mar 2014
Location: Belgium

iTrader: (0)

POst shift negative Timing drop OEM BMW map ? Know thing ?

I yesterday flashed back to the "stock" OEM like map , to do some baseline logging.
And i noticed something strange.
I found some "old" posts on the internet concerning this issue. but it was not conclusive to me

when switching gears on a MT , mostly from 3th to 4th gear. the DME pulls negative timing on various cyl.
As far as i can find in the logs there is no real explanation why.
The older posts state that is has something to do with the load request, or the DTC / DSC traction control setting. but i hadn't time yet to figure that out or log it

Anybody some knowledge on this ?

Here is the log : ( 2 log files )
http://datazap.me/u/odanbe/mhd-stage...3.00&tmax=0.00
Appreciate 0
      07-30-2015, 02:43 AM   #2
Dmacc
Colonel
211
Rep
2,799
Posts

Drives: 2011 BMW 1M
Join Date: Mar 2010
Location: So Cal

iTrader: (1)

What are your mods?
__________________

thanks to MGallop
Appreciate 0
      07-30-2015, 03:03 AM   #3
Odan.be
Private First Class
26
Rep
84
Posts

Drives: Bmw E91 3351
Join Date: Mar 2014
Location: Belgium

iTrader: (0)

downpipes , charge pipe with tial bov and DCI cones.. not other mods
Appreciate 0
      07-30-2015, 09:32 PM   #4
Dmacc
Colonel
211
Rep
2,799
Posts

Drives: 2011 BMW 1M
Join Date: Mar 2010
Location: So Cal

iTrader: (1)

Quote:
Originally Posted by Odan.be
downpipes , charge pipe with tial bov and DCI cones.. not other mods
I replied to you in the other thread, but running the stock tune catless will result in timing drops like that. The map needs to be adjusted for the added flow in the system.
__________________

thanks to MGallop
Appreciate 0
Reply

Bookmarks


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 -5. The time now is 11:33 PM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
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