BMW Garage BMW Meets Register Today's Posts
BMW 5-Series (G30) Forum Engine, Exhaust, Drivetrain, Tuning Modifications Stage 2+ Log Review Request: Knocking during low load + no boost

Post Reply
 
Thread Tools
      06-21-2025, 04:57 PM   #1
drewbersuper
New Member
drewbersuper's Avatar
12
Rep
19
Posts

Drives: 2019 BMW 540ix
Join Date: Aug 2024
Location: Columbus Ohio

iTrader: (0)

Stage 2+ Log Review Request: Knocking during low load + no boost

Context: I noticed that my car wasn't pushing full torque a few weeks ago and decided to gather data and review it. I first suspected that there was a boost leak, but it seems there is a few more things to look at than just the boost. Below is a quick run down of the symptoms:

Symptoms:
- Low torque figures (supposed to be 560 ft lbs WOT, steadily declining over weeks from 480 to currently 400)
- Engine load parameters are 50%+ off during accel. events

If someone could look at these briefly and lmk what my next steps should be, that would be fantastic.

Rolling Launch at 115 kmh (Map 4 then Map 1): https://www.bootmod3.net/log?id=6856...b40a5b850dd95e

Highway Cycle: https://www.bootmod3.net/log?id=6856...d94047bb7a11db

Map 1 is Stage2+ 93
Map 4 is OEM MPPK Tune
Appreciate 0
      06-23-2025, 06:37 AM   #2
Dre40i
New Member
5
Rep
12
Posts

Drives: 2018 540i xdrive
Join Date: Dec 2024
Location: US

iTrader: (0)

There’s a B58 log review thread in the F30 B58 chat. You’ll most likely get a faster response if you post your logs there for review.
Appreciate 1
Post 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 04:31 AM.




5post
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