Bump Stop [Merged 7-7] stops

[Sotarts]

Never cut off more than 50%.
You cut them to increase suspension travel (that you have reduced by lowering the car). When the car is lowered, you obviously reduce travel room. Since you've reduced the travel, you will hit (bottom out) the dampers ("bump stops") much easier/more often over big bumps/potholes.
Dampers (bump stops) are needed to prevent metal against metal contact.
Cut off about 1/3 or 1/4. If you still bottom out, cut to 1/2. You should mark the damper at 1/4, 1/3 and 1/2 for later reference.

 

[ohio98eclipse]

the bump stops are those little yellow things inside the shocks? well i did my shocks last night and they feel great but every now and than when i roll or hit a bump my pass right side makes a popping noise. Im pretty sure my control arm is shot would this cause that?.

 

[The_Baldman]

use the oem bumpstops. I have had no problems with my uncut bumpers. I am lowered 1.5". If you do bottom out, you need stiffer shocks. Where in ohio are you from? Dayton, O here. cya

 

[ohio98eclipse]

use the oem bumpstops. I have had no problems with my uncut bumpers. I am lowered 1.5". If you do bottom out, you need stiffer shocks. Where in ohio are you from? Dayton, O here. cya

I'm up in the cleveland area near the airport. Well I didn't cut the stops and it works out just fine.

 

[Eclipst]

it's just lowering springs and not coil overs, so only for coileovers you would have to remove them.

 

[unr3al]

I just put on H&R Race springs but I haven't got new shocks yet. Gonna get Koni's as soon as I have the $$. For the time being should I cut the bump stops because my front end in particular is constantly riding on them. If it's a decent solution until I get my shocks, how much should I be cutting off and from which end bottom or top?

 

[98TsiAWD]

You cut off of the bottom, if you cut off the top they wouldnt stay put on the shock shaft.

H&R springs come with an orange booklet (2 pages) that tell you exactly how much to cut off for specific vehicles. Was 3/4" I believe on mine for H&R sports springs (2g awd).

 

[unr3al]

Ahhh ok. Damn. Wish I had known this before Oh well, working on the car is fun right?

Thanks for the info.

 

[andrewjscott]

I've got a set of KYB AGX's comming and allready have sprint springs 2" drop front and rear. I need some bumpstops and I was looking at energy suspension's universal stops. My question is...which bump stop should i use? http://www.energysuspension.com/pages/sk_bsp1.html (see the bottom of the page) or can anybody tell me the shaft diameter for the 1G AGX's?

 

[andrewjscott]

Just to let anybody in the future know. I got an email from KYB and the piston rod diameter is 22mm or 7/8" so if you were to use Energy Suspension bump stops, part number 4.6103 is the best fit.

 

[TEclipse99Gs]

I have a 99 gs and I was wondering if there was any where I could order a set of 4 bump stop sfrom or if any body had any for sale?


thanks

 

[jtmcinder]

RRE will sell you JIC bumpstops.

- Jtoby

 

[chumpchange101]

Can you trim the bumpstops without having to take apart the suspension, its seems possible by just taking out the wheel

 

[No_Skillz]

Can you trim the bumpstops without having to take apart the suspension, its seems possible by just taking out the wheel

If you have a dust boot, then obviously no. If not, then you could provided you have some dextrous hands.

 

[gsxin]

can anyone give me a good link or a picture to show me where the bump stops are on my 1g?

 

[steve]

It's simple they are located on the strut/shock shaft. You can't see them because they are up under the dust boot and you have to take apart mount/spring/strut to get at them.

Steve

 

[gsxin]

Im such a newb

 

[gsxin]

well now that I know where its at can I cut them down? they are gr2s

 

[steve]

well now that I know where its at can I cut them down? they are gr2s

The bump stops don't come with the struts/shocks unless you buy news ones extra and yes you can cut them down as required by the spring kit you use. KYB however didn't warentee GR-2 in lower applications in the past. Do they now?

Typically, you would reuse the ones on the car now and cut them if needed assuming they haven't turned to dust.

Steve

 

[Mike1992]

Most every 1g I've seen has them missing. (In the front anyways) When I dropped my old talon I bought all new ones at Mitsu and it added up to around $80 for all 4 corners.

 

[gsxin]

Id like to say that gr2s with sportlines are the worst setup and I should have listened to the ones who warned me. Ill dont remember seeing any bumpstops in the front but i'll take them back apart and see. even though this is only a quick fix and agxs are coming soon. thanks for all the help.

 

[boostedinaz]

Id like to say that gr2s with sportlines are the worst setup and I should have listened to the ones who warned me. Ill dont remember seeing any bumpstops in the front but i'll take them back apart and see. even though this is only a quick fix and agxs are coming soon. thanks for all the help.

You will be disappointed with the AGX's as well. They are a good shock, but are just to long for a lowered 1G. You will bottom out all the time I know I do. Save yourself the headache and get Koni Yellow's for the front. I am currently looking for Yellow now to replace my AGX's.

 

[gsx951]

My advice is not to mess around with AGX at all. Koni Yellow is the best bang for your buck for either the 1G or 2G.

 

[chris712vt]

Alright sorry this isn't in suspension tech but i only have limited access.

Here's my setup - H&R sport springs with KYB AGXs. The springs came with a helpful guide telling me that on my specific application, I'd have to cut .6" off the front bump stops and nothing off the rears. I assume those instructions apply if you're simply swapping the new springs in and leaving the stock shocks. Should I do anything different since I'm using AGXs? Like trim the rear bump stop as well, etc. Please let me know what you think I should do if you have experience on the matter. Thanks.

And if it helps any, the springs quoted a 1.7" drop in the front and a 1.4" drop in the rear, but I've already got the springs on and it seems like it was more like 2" and 1.75". (I took measurements before and after). The shocks will be here Monday or Tuesday and I'll fix the bump stops if needed when I install them this week.

 

[nightspeed87]

So you not using stock shocks right? Well it may appear lower because the weight of the vehicle sitting on the spring make it lower then the actually spring sitting by itself.
Because if you do youll end up like me, I had brand new stock struts on before I put in my 2in drop lowering springs and handled extremely well for about 3 or 4 months
and then after that time period it started bottoming out severly and now its so bad its to the point my car just bounces all along the road and is sensitive to any since slight bump in the rode and you can push down on the front of the car and bounce it up and down with your finger its horrible. Im trying to look into getting some new performance struts myself
but there so expensive and im in the process of a motor rebuild and its hard to afford any of the decent stuff I see, and I dont want to ebay the struts.