BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
M2 Technical Topics > N55 Engine / Drivetrain / Exhaust / Bolt-ons / Tuning > Post FBO Stage 2 Issues

Post Reply
 
Thread Tools Search this Thread
      07-22-2020, 01:19 PM   #1
UseYourIllusion89
New Member
3
Rep
10
Posts

Drives: 2017 F87 6MT
Join Date: Jun 2019
Location: Chicago, IL

iTrader: (0)

Post FBO Stage 2 Issues

Hey all,

Having an issue with vibration/hesitation on throttle under load ONLY between 1500-2k RPM. Car vibrates and shakes seemingly at the downpipe.

Parts all installed at same time and first day had no issues, popped up on second day. Tuned with Bootmod3 OTS Stage 2 93 octane. Prior to this install I had no issues on stock with Stage 1. I have reverted tune to Stage 1 and Stock to test but the issue still persists (though it isn't as loud). Checked the clamps at downpipe and visually everything seemed good. Haven't had a chance to get it up on the lift yet and check everything else. Going to try reinstall the downpipe this weekend but hoping for some insight.

Car runs great otherwise. Not sure how to attach a video so I uploaded to Imgur.

View post on imgur.com


Parts installed:

VRSF Competition FMIC
Active Autowerke Charge Pipe
VRSF Catless Downpipe
Appreciate 0
      07-22-2020, 01:50 PM   #2
AmuroRay
Brigadier General
AmuroRay's Avatar
2165
Rep
4,073
Posts

Drives: M235i
Join Date: Aug 2019
Location: Florida

iTrader: (0)

Double check the connections. Any codes?
__________________
Mods: Yes.
Appreciate 0
      07-22-2020, 01:58 PM   #3
nothingman
Private NumNuts
nothingman's Avatar
United_States
521
Rep
321
Posts

Drives: 2021 GT4
Join Date: May 2017
Location: Mason Dixon Line

iTrader: (0)

Garage List
Does it happen around 2k rpm under light load going around 60mph in a high gear? There are a few of us having this type of problem we call a power stutter/hiccup that might be related.
__________________
Appreciate 0
      07-22-2020, 02:01 PM   #4
UseYourIllusion89
New Member
3
Rep
10
Posts

Drives: 2017 F87 6MT
Join Date: Jun 2019
Location: Chicago, IL

iTrader: (0)

Quote:
Originally Posted by AmuroRay View Post
Double check the connections. Any codes?
No codes
Appreciate 0
      07-22-2020, 02:02 PM   #5
UseYourIllusion89
New Member
3
Rep
10
Posts

Drives: 2017 F87 6MT
Join Date: Jun 2019
Location: Chicago, IL

iTrader: (0)

Quote:
Originally Posted by nothingman View Post
Does it happen around 2k rpm under light load going around 60mph in a high gear? There are a few of us having this type of problem we call a power stutter/hiccup that might be related.
Does happen both in high gear and low gear. I’ll check that thread thanks.
Appreciate 0
Post 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 -5. The time now is 08:26 AM.




m2
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