F30POST
F30POST
2012-2015 BMW 3-Series and 4-Series Forum
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > Suspension | Chassis | Brakes > Bump Stop Issue with Lower Springs?
Extreme Power House
Post Reply
 
Thread Tools Search this Thread
      06-03-2018, 03:35 PM   #1
johnung
New Member
6
Rep
20
Posts

Drives: 335xi
Join Date: Oct 2017
Location: New Jersey

iTrader: (0)

Garage List
Bump Stop Issue with Lower Springs?

BIMMERPOST
     Featured on BIMMERPOST.com
I've been reading many threads that mention bump stop changes when installing lowering springs- and my head is spinning. Hoping someone can help me to understand. My car is an F30 335i Xdrive and I'm considering a slight lowering using either Eibach springs (0.8" front/ 0.6" rear) or Dinan springs (0.75" front & rear). Dampers will probably be stock height type.
Many forum comments suggest trimming 1/4" from stock damper. Maybe someone can explain the engineering behind this. If the spring lowers the car by 3/4", wouldn't that reduce the stock damper travel by 3/4"? So wouldn't you want to trim the stock damper by 3/4" (not 1/4") to allow the same travel distance for the damper?
My car would take the Dinan bump stop kit# D193-3011. Does anyone have the OEM bump stop part numbers that are provided in this Dinan kit and/or know the measurements between the bump stops in this Dinan kit and the stock bump stop? Very curious to know if Dinan uses a bump stop that is 1/4" less, or 3/4" less or some other amount? Thanks in advance for your help.
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 -4. The time now is 01:28 PM.




f30post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
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