Bump Stop [Merged 7-7] stops

[steve]

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.

Follow the instructions than came with the springs regardless of which shocks your running.

Steve

 

[chris712vt]

nightspeed - yes I WILL be running aftermarket shocks in a couple days. As you said, shocks are pretty expensive so I figured I'd install my springs and keep the stock shocks for a while until I have extra money to burn for Koni sports. But after 4 days of riding with these stock shocks it's noticably bouncy and I am afraid I'll bottom out or mess something up. So I ordered AGXs and they'll be here in a day or two. (Koni sports = my first choice = $588 though. So I went with my second choice, the AGXs for only $372)

steve - thanks man, I appreciate the advice.

 

[xveganxcowboyx]

The rating of the drop tends to be approximate. If you search you'll find people with varying drops using the same springs.

If it's too low it's time to do some weight reduction.

 

[gstspydr]

I installed 2wd Tein H-Tech's on a Spyder with stock shocks. The springs were rated for a 1 inch drop. The ride hide ended up being 1.2 front and 1.4 rear for about two weeks and then it started to slowly fall and the shocks started blowing. I baught a set of KYB AGX's as well and installed them and now everything rides nice and tight. (no more rubbing the fender wells on bumpy roads.) But yes I did cut the bump stops as recomended by the spring manufacturer. I should have waited to install the springs till I got the new shocks, but I couldn't resist seeing the fender gap disappear any longer.

 

[chris712vt]

hahaha yeah man exactly! i've lived with the giant wheel gap for way too long and i didn't feel like waiting for the shocks. installing everything twice is worth it to me. and glad to hear your AGXs worked well. I rolled the inner lip of my rear fenders yesterday so i shouldn't have any more contact with the tires before or after the new shocks.

thanks for the responses guys

 

[zacksgsx]

Hello, We installed H&R Race Springs and Tokico Illumina struts on our 97 GSX. It dropped the car about 2 inches and it looks great but it is really a rough ride on these winter PA roads. The car seems to 'bottom out' everytime we hit a small pothole or even some manhole covers (yeah I know, just steer around them!). I think it is crashing down on the bump stops. Maybe I need to tighten up the struts they have several adjustment positions.
Can someone tell me where the bumpstops are located (front and rear) and how much to cut them? Can I get at them without removing the springs? Thanks for any thoughts. TP

 

[EclipseTrbo420A]

http://racerdesign.com/installation_guide.htm

Pic "F" and "G"

 

[MarkAngelo05]

Hello, We installed H&R Race Springs and Tokico Illumina struts on our 97 GSX. It dropped the car about 2 inches and it looks great but it is really a rough ride on these winter PA roads. The car seems to 'bottom out' everytime we hit a small pothole or even some manhole covers (yeah I know, just steer around them!). I think it is crashing down on the bump stops. Maybe I need to tighten up the struts they have several adjustment positions.
Can someone tell me where the bumpstops are located (front and rear) and how much to cut them? Can I get at them without removing the springs? Thanks for any thoughts. TP

Hi! I cut both my bump stops, front and rear to about the half way mark, or count 2 humps, from the larger side, then cut. That link with the pictures "F' and "G" pretty much shows you exactly where to cut, and where they are located (on the strut rods). I believe those tokiko's you have also are "short" stroke and designed for lowered cars, so cutting your bump stops will definitely make the RIDE much better! I'm on tein springs 2" drop w/ KYB AGX's and my ride is awesome! Hawaii has the worst roads in the UNITED STATES... every roadway has potholes and when they patch them up, the rain comes and lifts them back out... I run my AGX's around 4(our of 8 settings) in the back and 3(out of 4 settings) in the front... Just cut your bump stops if you're planning on keeping the 2 inch drop, and adjust your struts to the dampening force of your liking! enjoy! here's a good tip.. for great handling, yet smooth and not so bouncy on the streets and specially the freeway, set your rear softer than the front... it's the rear being to "stiff" is what makes cars bobble up and down on the freeway like those hondas on ebay coilovers and worn out struts....

On the track, GO AHEAD and set the rear to FULL dampening force so you get nice launches.... for the front, you gotta play with it and adjust accordingly!

take care!

p.s. Also, if you left them out all together, you will experience the same "ROUGHNESS" because you're most likely bottoming out the shock/struts.

Mark

 

[copper_gst]

That is very unusual that you are hitting the bump stops with that set up. You usually only bottom out like that with cheap set ups. I think that you might want to make your struts stiffer which isn't to hard. On the top of the strut bar there is an adjuster. Just take a flat head screwdriver and turn it. You are going to need to play with it a little to see how it feels. You can cut the bump stop if you can't eleminate the problem that way, but not to much. The bump stop is there to stop the strut from bottoming out which is really hard on the strut. If you want to know how and where to cut the bump stop, just pm me and I will try and get some pic and what not for you. Hope that helps.

 

[1PhatACR]

Can someone please measure the size of the stock bump stops for me? I'm not sure if they are the same front and rear. I would like either the stock size or the size of one after it was cut for an Eibach Pro-kit. I believe that I have everything to swap my struts/springs except the bump stop and I'd like to order them. Any help would be greatly appreciated. I'm looking at the bump stops here: http://www.suspension.com/Bumpstop.htm

Scroll about 2/3's of the way down the page.

Thanks

- Jason

 

[TMCRacing]

I need to know the stock lenght of bump stop. I have KYB struts with the boot and bump stop as one peice, can I cut what I need off the top. All I have read the stops are seperate.

 

[pneumo]

Do you have the solid rubber KYB bumpstops? The stock bumpstops are foam rubber and can compress much easier than solid rubber stops. If it's going on a lowered car, just cut it so there's about 3/8" to 1/2"rubber left, just enough to hold the boot in place.

 

[TMCRacing]

I just measured a stock stop which was 2 7/8 and cut the KYB stop to 2 1/8. 3/4 to 1 inch was the most common amount to remove. Hope this works. Was wondering if you need the stops on the back shocks. Mine are gone and was thinking of using a sway bar end link bushing if I need one. What do you think?

 

[pneumo]

That thickness sounds about right for a
foam rubber stop.
Solid rubber stops should be thinner.
Swaybar endlink bushings are better than nothing.

 

[TMCRacing]

Just measured everthing up. The struts have 2.0" of travel with lowering springs. The smallest you can cut the bumpstop on the KYB struts is 1" and still use the dust boot. These are the older design one piece type. Is 1" of travel going to do it? I had my son sit on the fender and I bounced the car, checked the travel and would just be on the bumpstop.

The bump stop can not be any smaller because of the top spring plate design. The smallest it could be is .5 and that would be right were the strut would bottom out.

 

[DROOPY209]

http://www.partsamerica.com/ProductDetail.aspx?MfrCode=MCQ&MfrPartNumber=CB4125&PartType=1389&PTSet=A

I don't have the stock bump stops to cut and My AGX's with eibach Pro-kit springs feel rather harsh without them right now.

I want to replace these this weekend and these guys seem to be able to get them in time.

Are those bump stops going to work well? Should I still cut them 20mm shorter?

 

[Calan]

I'm in the same boat you are... started putting my new Pro Kit and AGX's together and realized my bump stops are GONE.

I wonder if they have these stocked in stores or just online?

 

[Calan]

Can't get to suspension page for some reason...

http://www.afabcorp.com/AFCO_Dynate...Product_Code=20174&Category_Code=ct_shock-hdw

Installing Pro Kit and AGX's; stock bump stops are gone.