N54Tech.com - International Turbo Racing Discussion
swollix swollix is offline
New Member
Posts: 16
Join Date: Feb 2016
Car: 335i
Default 6MT jerky in 1st gear low throttle (S55) - 04-13-2019, 09:19 PM

Installed JB4 a few days ago, runs awesome for the most part. BUT... In 1st gear low rpm and low throttle the car is very jerky, enough so that I either have to push the clutch in or go into second. Is there a menu like the N54 JB4 menus 10-12 that you can adjust to keep it from jerking?This is very annoying being in Atlanta with lots of stop and go traffic...
Reply With Quote
Terry @ BMS's Avatar
Terry @ BMS Terry @ BMS is offline
Posts: 30,797
Join Date: Jan 2008
Default 05-05-2019, 09:15 AM

Best thing is to capture a log of it and then we can see what the technical cause is and how best to fix it.

Burger Motorsports
Home of the JB4 the worlds most popular turbocharged tuning system!

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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

Forum Jump

vBulletin Skin developed by: vBStyles.com
Copyright 2007 - 2020, N54tech.com