so, anyone interested? ill make some if i can get a bunch of people wanting them. i dont wanna spend 400 bucks for 2 of them myself. so i got it figgured out on how to make 'em. aluminum body, steel shaft, aluminum piston, polyurathane snubber.
*** guaging interest **** cheap air bump stops (1 Viewer)
- Thread starter Halogrinder
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Rascal
SILVER Star
I'm interested... Like to see your plan.
- Thread starter
- #3
what im looking for also is HOW MUCH you would expect to pay.
what would be expected of this air bump?
how long would you expect it to hold pressure?
im new into these things too, so i got questions
what would be expected of this air bump?
how long would you expect it to hold pressure?
im new into these things too, so i got questions
I would expect it to work.
They need to hold the same air press for at least 6 months
New ones are what, $175 a piece or so.. $250 for 2 if they are very good quality.. less if they need a lot of work to keep functional
They need to hold the same air press for at least 6 months
New ones are what, $175 a piece or so.. $250 for 2 if they are very good quality.. less if they need a lot of work to keep functional
- Thread starter
- #5
thanks for the input mace.
what are you up to Alex!?!?!?
Ive just fitted up Fox triple bypass shocks on my truck, because they have a 50mm [2"] bump built into the shock, and I used that in conjunction with the original bump stop height when fitting.
Just a thought, so i saved the whole bump buy and mount issue by the shock i chose.
If you made them, I would expect $75-$95 ea would be fair, wholesale, especially if different lengths available, as have been making spacers for others to limit the travel, because 4" has been to much for our use.
Just a thought, so i saved the whole bump buy and mount issue by the shock i chose.
If you made them, I would expect $75-$95 ea would be fair, wholesale, especially if different lengths available, as have been making spacers for others to limit the travel, because 4" has been to much for our use.
ill have to stop by and check this out, once i get my motor in the 40 fixed
Mace said:
OK, so whats the best size to make, and why?
I think you'll have problems without any valving. I believe that during initial compression the bump will work as intended, however, once compressed the bumpstop will act like a loaded spring and try to shoot the axle away from the truck. This would normally be dampened by the valving within the bump, but if there is none, I feel like it would create some vary weird reactions when you bottom the suspension.
Just some food for thought.
Ary
Just some food for thought.
Ary
- Thread starter
- #13
well, what i think im going to do is make a set for myself, mount em up and beat 'em up on the truck. tell ya how it works, and then see if anyone is interested....
Mace said:
4" is great for arresting speed of a swinging suspension unit when it has 30+" of travel, but twice as much as the average 4wd truck needs when you do the math on making it work.
The problem with 4" on a truck which doesnt have huge travel is the bump becomes part of the suspension travel, and makes the shock work harder as it trries to throw the whole suspension away at speed again, and can lead to bump overheating, because it doesnt have enough travel between the ride height, and 4" of bump travel.
We make spacers for them to make 2" for up to 20" travel, 3" for 20-30" and 4" for high speed 25+" travel.
All depends on what you are actually wanting to use the truck for.
so kinda a basic noob question...
why would you want air bump stops instead of a standard bumpstop when rockcrawling? more of a smooth feel when bottoming out?
why would you want air bump stops instead of a standard bumpstop when rockcrawling? more of a smooth feel when bottoming out?
- Thread starter
- #16
well, as far as i can see, im gonna be airing out this peice of crap ford i have, (78 f150).... now it aint gonna be freakin 20 feet in the air, but i KNOW im gonna be gettin the tires off the ground... its a beater. so instead of the poly bumpstops, i thought making some of these would be cool.....
now i was thinking about them acting like a loaded spring, but if you have a decent shock on the truck, the shock should help with the axle coming out of bound, into rebound, by using the shocks valving instead of the non existant airbumps valving. yea i cant compete with Fox or Race Runner with a bling bling air bump, but a cheepo that will fit the bill for the weekend warrior should be bueno with what im makin
i guess if i do make these, i need to make crystal clear that these aint for banging the clouds with your roof, just a softer landing than polyurethane mounts...
now i was thinking about them acting like a loaded spring, but if you have a decent shock on the truck, the shock should help with the axle coming out of bound, into rebound, by using the shocks valving instead of the non existant airbumps valving. yea i cant compete with Fox or Race Runner with a bling bling air bump, but a cheepo that will fit the bill for the weekend warrior should be bueno with what im makin
i guess if i do make these, i need to make crystal clear that these aint for banging the clouds with your roof, just a softer landing than polyurethane mounts...
you will need 2" ones only for that, because they arent designed to work as part of the suspension, and will actually limit your travel at slow speeds, because they wont have the momentum to compress them.
They will also make the shocker work harder, because they "throw" the diff from bound to rebound [your description] making the rebound of the shock work harder, for no gain.
They will also make the shocker work harder, because they "throw" the diff from bound to rebound [your description] making the rebound of the shock work harder, for no gain.
- Thread starter
- #18
well, we can only wait for my peice-o-crap-it-aint-gonna-work air bumpstops to be mounted up on the ford, for a thrash fest....
hey if it doesnt work, im not gonna be waistin your guy's money, right?
also, i can just buy the real ones, and put them in the already made cans to hold em.... really i see no lose lose situation. i learn the lathe better, and see if i can make some cheap bling for myself and others....
sorry to be greedy, but these really are for me..lol
gotta idea also. on the shaft that will be going into the body of the air bump......
whaddabout making "2" pistons.... i.e. the upper piston on the shaft will have a few holes in it, to allow some oil and air to go thru, effectivly acting like a set of valves..... then another piston on the shaft a few inches down, to a) act as a pressure piston to hold the pressure/oil in the body, and B) to act as a guide to keep the piston from levering, or walking back and forth inside the housing..... better idea?
hey if it doesnt work, im not gonna be waistin your guy's money, right?
also, i can just buy the real ones, and put them in the already made cans to hold em.... really i see no lose lose situation. i learn the lathe better, and see if i can make some cheap bling for myself and others....
sorry to be greedy, but these really are for me..lol
gotta idea also. on the shaft that will be going into the body of the air bump......
whaddabout making "2" pistons.... i.e. the upper piston on the shaft will have a few holes in it, to allow some oil and air to go thru, effectivly acting like a set of valves..... then another piston on the shaft a few inches down, to a) act as a pressure piston to hold the pressure/oil in the body, and B) to act as a guide to keep the piston from levering, or walking back and forth inside the housing..... better idea?
ats4x4dotcom said:
It all depends on how the bump is used. It is not always the amount of travel that is important, it is the way that travel is used. Bump placemetn is also important. You are making lots of assumptions with your design.
And my main point is that he is making something that is more of a small batch. If he makes 10 different sized it will cost more individually than a single size. Hence the waste of time thing..
- Thread starter
- #20
ding ding winner winner....
we have a lovely selection of gouda cheese for you mace...lol
how often do you hit your bumpstops anywhoo? i hardly ever hit them, unless i was doing something stupid....
unless you specificly set your bumpstops to hit perfectly, most people i see dont have them, or dont use them unless they COMPLETLY bottom out.... thats where these thingies might come into play.....
well lets just say, these are stupid savers?
we have a lovely selection of gouda cheese for you mace...lol
how often do you hit your bumpstops anywhoo? i hardly ever hit them, unless i was doing something stupid....
unless you specificly set your bumpstops to hit perfectly, most people i see dont have them, or dont use them unless they COMPLETLY bottom out.... thats where these thingies might come into play.....
well lets just say, these are stupid savers?
