E90Post
 


Extreme Powerhouse
 
BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > Boost Delay, normal?



Reply
 
Thread Tools Search this Thread
      04-06-2023, 05:43 PM   #1
mindless
New Member
0
Rep
8
Posts

Drives: 320d E90'LCI 2011
Join Date: Mar 2023
Location: Norway

iTrader: (0)

Boost Delay, normal?

I have N47N 2011 engine with stage 1 chip. Been having some trouble with turbo actuator lately, I tought I fixed it, but I am not so sure anymore, used TestO to record some data, so my questions are as follows:

Is it normal with this much delay between requested turbo pressure and delivered turbo pressure?

Is it normal with this much difference between requested torq and delivered torq?

And last, is it normal that turbo actuator (WG Actuator) position has such big error room?

See graphs below

Pull 1: 0 to 100kmh

RPM and Boost Graph:
Name:  Pull 6.png
Views: 119
Size:  107.8 KB

Torq Graph:
Name:  Pull 6 Trq.png
Views: 110
Size:  104.6 KB

Turbo WG Position Graph:
Name:  Pull 6 Actuator.png
Views: 111
Size:  118.0 KB

Pull 2: 0 to 100kmh

RPM and Boost Graph:
Name:  Pull 5.png
Views: 109
Size:  107.4 KB

Torq Graph:
Name:  Pull 5 Trq.png
Views: 109
Size:  97.1 KB

Turbo WG Position Graph:
Name:  Pull 5 Actuator.png
Views: 98
Size:  112.9 KB

Pull 3: 0 to 100kmh

RPM and Boost Graph:
Name:  Pull 4.png
Views: 100
Size:  111.7 KB

Torq Graph:
Name:  Pull 4 Trq.png
Views: 103
Size:  106.7 KB

Turbo WG Position Graph:
Name:  Pull 4 Actuator.png
Views: 102
Size:  112.6 KB


Thanks for any help
Appreciate 0
      04-06-2023, 05:45 PM   #2
mindless
New Member
0
Rep
8
Posts

Drives: 320d E90'LCI 2011
Join Date: Mar 2023
Location: Norway

iTrader: (0)

Turbo Pressure is in mbar
Appreciate 0
      04-07-2023, 02:59 AM   #3
335i54n
Lieutenant
295
Rep
525
Posts

Drives: e90 335i, e39 m5
Join Date: Nov 2020
Location: socal

iTrader: (0)

you need to check the boost vs boost target and the time/rpm it takes to reach that target and along with wg duty will give you an idea of what the turbo is doing. likely if everything else is fine u got worn wg arms
Appreciate 0
      04-07-2023, 03:51 AM   #4
mindless
New Member
0
Rep
8
Posts

Drives: 320d E90'LCI 2011
Join Date: Mar 2023
Location: Norway

iTrader: (0)

Quote:
Originally Posted by 335i54n View Post
you need to check the boost vs boost target and the time/rpm it takes to reach that target and along with wg duty will give you an idea of what the turbo is doing. likely if everything else is fine u got worn wg arms
Dude, look at the graphs.... that's what I checked, everything that you mentioned is in the graphs above
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 07:14 PM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, 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