PDA

View Full Version : Bump stops???

KarlSpackler
06-06-2009, 11:39 PM
So, my car sits perfect in the rear ........... minus the rubbing over large bumps.

I have heard of using bump stops on the struts, anyone have any input?
SeanDub
06-06-2009, 11:49 PM
go slower over speed bumps or wait, eventually you'll rub away the contact spot lol :)
M.Burroughs
06-06-2009, 11:53 PM
You can make your own bumpstops to limit the travel, it's pretty simple. The concept of the bumpstop is basically forcing the strut to stop compressing before it gets to a certain point...
So find out how much travel you do want, and then make a stop for the remaining length.
southpaw
06-07-2009, 12:17 AM
BreakMyWallet made a DIY on bump stop. like 4 bucks from Home Depot on rubber stoppers.

pretty easy DIY.
KarlSpackler
06-07-2009, 12:44 PM
BreakMyWallet made a DIY on bump stop. like 4 bucks from Home Depot on rubber stoppers.

pretty easy DIY.

Does anyone have a link to a DIY?
What materials were used?

I have never used bump stops before so I need learnt.
driggers.a
06-07-2009, 12:52 PM
You can order bump stops from GC for like $10. If they're too tall just cut them in half or something...
KarlSpackler
06-07-2009, 02:43 PM
You can order bump stops from GC for like $10. If they're too tall just cut them in half or something...

sick, I will give them a call
driggers.a
06-07-2009, 02:49 PM
Sorry, $12.

http://www.ground-control-store.com/products/description.php/II=10/CA=1
KarlSpackler
06-07-2009, 06:26 PM
Sorry, $12.

http://www.ground-control-store.com/products/description.php/II=10/CA=1

ouch, thats kinda spendy
EThirtySicks
07-02-2009, 05:45 PM
ouch, thats kinda spendy

:shifty
ProjektONE
07-03-2009, 07:46 AM
ouch, thats kinda spendy

huh? :shifty
bataangpinoy
07-22-2009, 11:24 PM
make em. you may call me mad, but i think oem e30 rtabs would work well in this application.
TRiCC
07-23-2009, 04:01 AM
any one care to describe to me what bump stops are and how to use them? thanks
SeanDub
07-23-2009, 11:18 AM
http://www.roadraceengineering.com/parts/jic/2g-bodylengthadjustment-longshortfront.jpg

The piece on the shaft of the strut. Protects against full compression
dinanm3atl
07-23-2009, 04:42 PM
any one care to describe to me what bump stops are and how to use them? thanks

The picture shows what it is.

The point is to protect the shock from full compression. So a large highway dip and such. Bottoming out the shock is not good for the shock absorber. It is designed to work in a certain range of motion to operate properly.

Similar to the suspension on a speaker/sub. Don't want the voice coil bottoming out either.
Stephen
07-23-2009, 07:24 PM
Has anyone cut thier e30 bumpstops? i know you can, and i wanna, i could use the travel.
dinanm3atl
07-23-2009, 09:11 PM
Sure you can. I am having a brain fart but it is either Bilstein or Koni that says transfer your OEM bumpstop to their shock and trim it down XX measurement...

Maybe that is the Koni's that come with Dinan springs. I forget.
TRiCC
07-23-2009, 11:49 PM
OOOO i seee what you did there LOL but isnt that what dampers are made for? or they only help a little? can you put bump stop in the rear shocks?
dinanm3atl
07-24-2009, 05:35 PM
OOOO i seee what you did there LOL but isnt that what dampers are made for? or they only help a little? can you put bump stop in the rear shocks?

Dampeners? Those are the shocks ;)

bump stop protects the shock from full compression.
Stephen
07-25-2009, 12:53 AM
Well hellabad on r3v , who works for GC, said you can cut the billy bumpstops about one third. He has a little pic showing where to cut but how to get to the bumpstop inside the strut is beyond me. Maybe im overthinking it.
87e30
07-25-2009, 03:23 PM
Well hellabad on r3v , who works for GC, said you can cut the billy bumpstops about one third. He has a little pic showing where to cut but how to get to the bumpstop inside the strut is beyond me. Maybe im overthinking it.

You're definitely over thinking it man.

I do'tt run them. :shifty Probably should.


It's literally just the strut shaft, with a little piece of rubber that slides around it. Kind of like a washer, but rubber and thicker. Cutting it in half just makes it less tall so the strut can compress farther. It still slides on and sits there just like normal. To take it off the strut, cut it, and put it back on, it would probably take you 47 seconds.
Stephen
07-26-2009, 01:26 AM
BUt you have konis, and those dont sound like internal bumpstops to me..
Tuck&Poke
07-26-2009, 11:53 AM
i could have sworn sombody sold "clip on" bump stops. They look like little "C" shaped things that you would slide around the rod on the shock and you could stack them to make it whatever size you need
87e30
07-26-2009, 10:55 PM
BUt you have konis, and those dont sound like internal bumpstops to me..

Who said anything about internal bumpstops? Are you saying Koni's have them... I didn't know that?


i could have sworn sombody sold "clip on" bump stops. They look like little "C" shaped things that you would slide around the rod on the shock and you could stack them to make it whatever size you need

I suppose you could just get a regular one and cut a slit in it and stretch it out and around yourself.
Stephen
07-27-2009, 12:52 AM
i dont have konis, they are none of my concern ;)
87e30
07-27-2009, 11:47 AM
i dont have konis, they are none of my concern ;)

Then why did you mention them or say anything about internal bumpstops? I'm confused! bastard!
Stephen
07-27-2009, 08:24 PM
billys do.. i think.. no idea about konis
87e30
07-28-2009, 06:29 PM
billys do.. i think.. no idea about konis

Oh... well in that case. touche. Good for you.

I'm pretty sure my springs are too stiff to bottom out the strut anyways though. I hope.