Bumpstops?

[kmanxj5050]

What is everyone running as far as brand, length, etc.?

i am at 6.5" of lift and not really sure how to go about picking bumpstops.

thanks all:thumbup:

[RCman]

As for picking them, a tape measure is best for that. Are you looking for something in the OEM locations? Secondly, what is your budget?

[kmanxj5050]

i am in college and am only 20 budget lol

so not alot just curious and just getting into the going fast so more of a curious question and looking at options.

[ocean_jet]

What is everyone running as far as brand, length, etc.?

i am at 6.5" of lift and not really sure how to go about picking bumpstops.

thanks all:thumbup:


I am using 4 hockey pucks from play it again sports. I'm on about 5 inch of lift. That's the budget solution for sure. And in Michigan, you could proabbly get some pucks for free if you know any hockey players. Otherwise, they were $1 each at play it again. Two 4 inch bolts (counter sunk 1/2 inch in top puck) were probably another buck or so.

In the back I have some modified leaf spring plates with a raised metal plate that contacts the stock frame rail mounted bump stop.

[ocean_jet]

so not alot just curious and just getting into the going fast so more of a curious question and looking at options.


Well... pucks may not be the best idea then. :D

I'm into going slow.


Sorry, didn't realize I was in the Jeepspeed forum...:doh:

[crazyjim]

Well... pucks may not be the best idea then. :D

I'm into going slow.


Sorry, didn't realize I was in the Jeepspeed forum...:doh:
:laugh:


kman, if you can afford air bumps, that's the way to go. Tom from T&J sells a weld in kit for front air bumps, also rears. You'll probably want to go with a 2" stroke instead of a 4", as you don't want the bump acting like a secondary shock.

Now if you can't afford air bumps, check out the poly bumps that have a few wriite ups in this section. A few people are running them and like them.

[kmanxj5050]

I would love air bumps, but at this point in my life they are a little pricey lol

what do you say about hockey pucks? no

and couldn't i just use some steel tube and "space" the stock rear one down more?

i just got in tonight some 4-6" lift RC 9000 shocks for the back (shocks until i have money for steins)

at the dunes i broke both dog ears on the rear due to compressing the shock to much. And i dont want this to happen on my new shocks. (had rusty's 4.5" shocks before, the rc's are only .25" to .5" longer)

thanks guys

[RCman]

The biggest issue with the stock style bumpstops is they don't really offer any 'progressive' movement. They just hit hard and are... well stopped. For the go fast stuff you really need something that is going to absorb some of that energy before you reach full stop.

Look at crazyjim's writeup (http://www.naxja.org/forum/showthread.php?t=984193) on the polys (you don't have to use the rectangular ones, they are offered in oval and round setups). Or look into the Timbren style bumps. They'll both require very minor custom fabrication, but will be a whole heck of a lot cheaper than air bumps.

[kmanxj5050]

gotcha rcman and thanks

[kmanxj5050]

slcpunk74 and crazyjim, how much lift are you guys at?

[Goatman]

These are the best front bumpstops to get unless you spend the dough for air bumps. Very soft, very progressive, easy to install, and cheap. Nothing else even compares for the front.

http://www.jegs.com/p/Prothane/762178/10002/-1


http://www.jegs.com/images/photos/300/311/311-coilinsert.gif



I got the 10" ones and cut off one ridge. They compress 3.5".......very progressive.

[ocean_jet]

what do you say about hockey pucks? no


Like RCMan said, no progressive movement. Ok for slow guys like me. Not so good for go fast.

I know a guy who uses prothane bump stops up front.

Couple links:
http://www.naxja.org/forum/showthread.php?t=985677

http://www.naxja.net/forum/showthread.php?p=244262796

He didn't do any modified mounts like shown in the threads. He just screwed a puck on the top end to close the hole and dropped them into his coils.

Thet apparently compress quite a bit.

[kmanxj5050]

nice how do you all test your suspension to see how far it compresses. I mean i have flexed mine out with the fork lift lol is that a good way to do it or is there a better way.

thanks guys

[Goatman]

nice how do you all test your suspension to see how far it compresses. I mean i have flexed mine out with the fork lift lol is that a good way to do it or is there a better way.

thanks guys

That won't compress it very far. If you can bottom your suspension while flexing it's WAY too soft for going very fast. Only way to test compression is to go fast and hit something. Find a couple big dips somewhere around where you live, wrap some small tie wraps around your shocks, and have at it. The tie wraps will show you how far you are compressing.

Have fun. :D

[crazyjim]

Haha, that's what I did at first until I got my air bumps adjusted correctly. Just remember, start long, then shorten them up accordingly

[Swamprat]

im running stock bumps, but im also on 30" tires and i have so much travel with those little tires that i dont or rarely hit my bumps. but i agree if you can afford it go for the air bumps.

[crazyjim]

im running stock bumps, but im also on 30" tires and i have so much travel with those little tires that i dont or rarely hit my bumps. but i agree if you can afford it go for the air bumps.
It's not so much about tire size as it is the shock. The last thing you want to do it bottom out your shocks.

[kmanxj5050]

That won't compress it very far. If you can bottom your suspension while flexing it's WAY too soft for going very fast. Only way to test compression is to go fast and hit something. Find a couple big dips somewhere around where you live, wrap some small tie wraps around your shocks, and have at it. The tie wraps will show you how far you are compressing.

Have fun. :D


tie wraps around shock? you lost me lol

how much lift are you at crazyjim?

[crazyjim]

You wrap a small zip tie around the shaft of the shock, and move it all the way up towards the body. Hit some dips, and then go see how far the zip tie moved. It'll act like an indicator of travel, and show how far down the shaft you're running.

As for how much lift I'm on, I really don't know to be honest, somewhere around 6"

[kmanxj5050]

that is a good idea lol

and i am right around 6 as well do you like were your bumpstops were at (the old red ones that is)?

[crazyjim]

I never ran the poly bumps, I went straight to air bumps up front. In the rear I'm running the poly's. I fabbed up a bracket though for the axle, and used my stock bump to fine tune it, by cutting and what not.

[kmanxj5050]

oh i didnt know you were still running the polys in the rear.

i think i am going to steal your design for the back of mine ;)

[crazyjim]

oh i didnt know you were still running the polys in the rear.

i think i am going to steal your design for the back of mine ;)
Feel free, I just made a template out of cardboard and went to town. They work well...

[Swamprat]

It's not so much about tire size as it is the shock. The last thing you want to do it bottom out your shocks.

nope bottoming out the shock would suck.

[Swamprat]

nope bottoming out the shock would suck.


spoke too soon, was doing that zip tie thing. wasnt going that hard, but i got air and bottomed out. now to go do my bumps!

[kmanxj5050]

lol i am going to the dunes sunday so i will be doing the zippy tie trick and seeing what happens

[kmanxj5050]

now for fronts since i know what i am gonna do on the back.

i was looking at just extended poly ones that go in the stock hole.

is that a good idea or are the ones that just sit inside the coil the best choice?

besides air bumps of course

[Swamprat]

i bought the poly extendo bumps for the front along with the evs jounce shocks bump things

[kmanxj5050]

wered you get them i found em the other day but cant now lol

thanks

[Boostwerks.com]

Quadratec carries them.

[Swamprat]

Quadratec carries them.

thats where i got mine

[vetteboy]

Stacked pucks wasn't working out so well for me. The stock bumpstops suck when you hit them hard, and I bent the bumpstop towers on both sides.

http://photos-g.ak.fbcdn.net/photos-ak-snc1/v2072/53/103/24800499/n24800499_33128126_2699.jpg

http://photos-h.ak.fbcdn.net/photos-ak-snc1/v2072/53/103/24800499/n24800499_33128127_3007.jpg

I cut the towers off and swapped in 2" airbumps. Much better.

http://photos-e.ak.fbcdn.net/photos-ak-snc1/v2072/53/103/24800499/n24800499_33134868_1675.jpg

It's still not a high-speed desert rig by any stretch, but it goes pretty good. Trail riding and prerunning stuff is much more comfortable now.

[kmanxj5050]

^^^^ DAMN!!!!!

i think i will completely erase the hockey puck thing from my brain lol

[vetteboy]

For normal trail use, hockey pucks can be a fine solution.

For the levels of hell I put this thing through, it needed something a little more robust. :D

[et89xj]

I run the Polly coil ones in front, went with the 10" ones. I run two sets one cut down to 3.5 rings(my race/jumping set) and one set cut to 2.5 rings(trail riding set). I had to drill a few 1/2" holes in both sets to soften them but they are the best thing I have ever done to my rig. Well worth every penny...andy miobi.org