Progressive Foam Bump Stops - ClubLexus - Lexus Forum Discussion

Notices
LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

Progressive Foam Bump Stops

Old 05-12-09, 10:27 AM
  #1  
steveski
Lexus Champion
Thread Starter
 
steveski's Avatar
 
Join Date: Oct 2005
Location: TX
Posts: 1,884
Thanks: 0
Thanked 0 Times in 0 Posts
Default Progressive Foam Bump Stops

I thought I would share a small discovery with all you non-coilover guys. When you install lowering springs on OEM struts or aftermarket, they recommend cutting the bump stop. I did this and never really thought it was a good idea since it basically means when the strut is compressed under load it will bottom out on the hard bump stop.

I removed the old bump stops and installed these polyfoam bump stops last weekend. I did not cut them. The difference is huge - the foam compresses and progressively adds up to 250 Lbs. at full compression (2' to 2 1/2"). The cut bump stop does the same but it is only when it hits rock bottom and it gives you the big jolt.

I thought it was a decent intervention at $20 per pair. Since I run Bilstein HD's and use lowest perch with H&R's, these are particularly effective - no more hard bottoming out. Here is pic from JC Whitney:
Attached Thumbnails Progressive Foam Bump Stops-da_evs_shk.jpg  

Last edited by steveski; 05-12-09 at 06:38 PM.
steveski is offline  
Old 05-12-09, 03:41 PM
  #2  
acidfire52
Driver
 
Join Date: Dec 2005
Location: CO
Posts: 177
Thanks: 0
Thanked 0 Times in 0 Posts
Default

wow, neat discovery. WIll remember those when I redo my suspension.
acidfire52 is offline  
Old 05-24-17, 04:33 PM
  #3  
ZippyGuy
Lexus Test Driver
iTrader: (9)
 
ZippyGuy's Avatar
 
Join Date: Oct 2005
Location: VA
Posts: 1,431
Thanks: 0
Thanked 1 Time in 1 Post
Default

Originally Posted by steveski View Post
I thought I would share a small discovery with all you non-coilover guys. When you install lowering springs on OEM struts or aftermarket, they recommend cutting the bump stop. I did this and never really thought it was a good idea since it basically means when the strut is compressed under load it will bottom out on the hard bump stop.

I removed the old bump stops and installed these polyfoam bump stops last weekend. I did not cut them. The difference is huge - the foam compresses and progressively adds up to 250 Lbs. at full compression (2' to 2 1/2"). The cut bump stop does the same but it is only when it hits rock bottom and it gives you the big jolt.

I thought it was a decent intervention at $20 per pair. Since I run Bilstein HD's and use lowest perch with H&R's, these are particularly effective - no more hard bottoming out. Here is pic from JC Whitney:
Interesting.....

I'm in he market for new bump stops. Do you have a catalog number?
ZippyGuy is offline  
Old 05-25-17, 06:40 PM
  #4  
PureDrifter
BahHumBug
iTrader: (10)
 
PureDrifter's Avatar
 
Join Date: Aug 2004
Location: California
Posts: 23,904
Thanked 39 Times in 36 Posts
Default

it's an 8+ year old post guys, google to find the part number for whatever size you need, it probably changed since then anyway.
PureDrifter is offline  
Old 05-27-17, 02:52 PM
  #5  
dicer
Lexus Champion
 
Join Date: Jul 2010
Location: ca
Posts: 4,473
Thanked 69 Times in 65 Posts
Default

And how do they fit over all that large stuff? Do they come apart?
dicer is offline  
Old 05-27-17, 03:41 PM
  #6  
billydpowe
Lexus Champion
iTrader: (1)
 
billydpowe's Avatar
 
Join Date: Mar 2009
Location: texas
Posts: 3,001
Thanked 64 Times in 58 Posts
Default

8 years ago they were smart enough to figure it out instead of asking questions...(HEHEHE) just joking diser
if JC Whitney sells it, it must be easy.
billydpowe is offline  


Thread Tools
Search this Thread
Quick Reply: Progressive Foam Bump Stops


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: