FD Air Cup Suspension
08-18-11, 01:04 AM
#26
I am still kicking myself for not picking up a set of those SSR GTIIs that you had a few years back they woulda looked great on my car now.
The only way I would know if the FEED would fit is to have them infront of me unfortunately. Other than the OD and ID of the spring there are other measurements to take.
The only way I would know if the FEED would fit is to have them infront of me unfortunately. Other than the OD and ID of the spring there are other measurements to take.
08-19-11, 05:47 PM
#27
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curacaosfinest
Quote:
Originally Posted by GodSquadMandrake
I still don't understand. Is there a rubber bag in that cup, or is it a metal piston? Like when it's bottomed out is it metal on metal?
+1
explain thyself!!
seems to be the type of system used in the Lamborghinis
Quote:
Originally Posted by GodSquadMandrake
I still don't understand. Is there a rubber bag in that cup, or is it a metal piston? Like when it's bottomed out is it metal on metal?
+1
explain thyself!!
seems to be the type of system used in the Lamborghinis
and yes its close to the lambo, ferrari and porche system but better lol..
08-19-11, 06:01 PM
#28
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Sideo
Awesome
I thiiiink... When the vehicle is not raised up the original coil behaves normally, airride doesnt have a coil the airbag is the coil
Awesome
I thiiiink... When the vehicle is not raised up the original coil behaves normally, airride doesnt have a coil the airbag is the coil
97SupraTwinTurbo Any pillowball mounts? Camber adjustment.
BTW when you look at the undercarridge what you see is the side view of the air tanks they are under the car so they do not take any of our precious space inside the car and everything is stealth
08-22-11, 10:58 AM
#31
Derwin
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All of the compliments are greatly appreciated!
Krayton I don't understand your question. In this case you would lift the car to be able to jack it and once in the air it wouldn't make a difference. Think of air in your tires.
Krayton I don't understand your question. In this case you would lift the car to be able to jack it and once in the air it wouldn't make a difference. Think of air in your tires.
08-22-11, 11:37 AM
#32
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sorry i was picturing it wrong. i think i get it.
you adjust the coilover further down to accompany the cup. i was picturing breaking the coilover into 2 sections, but your keeping it as a whole.
but you do lose some shock travel then?
you adjust the coilover further down to accompany the cup. i was picturing breaking the coilover into 2 sections, but your keeping it as a whole.
but you do lose some shock travel then?
08-22-11, 12:02 PM
#33
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krayton
when all setup, is the lower cup confined to the upper cup? IE if I need to jack up my car i assume itll droop a little, but not completely fall out?
when all setup, is the lower cup confined to the upper cup? IE if I need to jack up my car i assume itll droop a little, but not completely fall out?
krayton
sorry i was picturing it wrong. i think i get it.
you adjust the coilover further down to accompany the cup. i was picturing breaking the coilover into 2 sections, but your keeping it as a whole.
but you do lose some shock travel then?
sorry i was picturing it wrong. i think i get it.
you adjust the coilover further down to accompany the cup. i was picturing breaking the coilover into 2 sections, but your keeping it as a whole.
but you do lose some shock travel then?
08-22-11, 02:36 PM
#34
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Cool idea indeed! I'm wondering how you keep the air charged up, what pressure it's running, and how long it will hold pressure like that for. What would be really cool would be self adjusting height which you could actually ride around on. Also, does it have to be oiled ?
08-22-11, 02:43 PM
#35
there was another thread about aircup suspension a few months ago. this stuff has been available and used for years now, but $$$$$$$$ as op said.
rx7club snoozin' 2011. stickers avail soon!
anyways to add, there is another maker other than top secret that makes cup kits, i found it on zilvia a couple years ago. i just have to dig through and see what it was called.
rx7club snoozin' 2011. stickers avail soon!
anyways to add, there is another maker other than top secret that makes cup kits, i found it on zilvia a couple years ago. i just have to dig through and see what it was called.
08-22-11, 08:13 PM
#36
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A. The metal cup must have a rubber surround that can withstand 200 psi no? Guess I'm just surprised 200 psi and the four corners is enough to lift a car.
B. So do you have to rock a small compressor somewhere? Guess it doesn't add too much weight.
B. So do you have to rock a small compressor somewhere? Guess it doesn't add too much weight.
10-19-11, 08:10 PM
#37
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Do you have any pictures of the inside of the cup?
Do you put a small amount of oil in the cup to keep the seals lubricated?
Do you feel you could run the cups under pressure for an extended period of time, like if you're going down a 5 mile long gravel road where the pistons will have to be extended and under pressure for 20+ minutes?
Are you using that spring clip to keep the pistons in the cups, and the two orings to hold the air pressure in?
Are they regular rubber o rings?
What life do you think you can get out of the seals?
Are you worried that dirt might collect on the inner surfaces of the cups while it's in the 'down' position, and cause marring and scratches in the inside of the cups over time destroying the seal?
Are the cups machined one piece, or a tube with a cap welded to it?
Thanks,
Final
Do you put a small amount of oil in the cup to keep the seals lubricated?
Do you feel you could run the cups under pressure for an extended period of time, like if you're going down a 5 mile long gravel road where the pistons will have to be extended and under pressure for 20+ minutes?
Are you using that spring clip to keep the pistons in the cups, and the two orings to hold the air pressure in?
Are they regular rubber o rings?
What life do you think you can get out of the seals?
Are you worried that dirt might collect on the inner surfaces of the cups while it's in the 'down' position, and cause marring and scratches in the inside of the cups over time destroying the seal?
Are the cups machined one piece, or a tube with a cap welded to it?
Thanks,
Final
10-20-11, 11:03 AM
#39
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Some links to other manufacturers:
Platinum VIP - No pricing or application list on their web site: http://www.platinumvipmotors.com/#!auto-spa
Autofashion - Bolt on and it fits Tein coilovers, pricey: http://www.autofashionstore.com/vrhsucki.html
Platinum VIP - No pricing or application list on their web site: http://www.platinumvipmotors.com/#!auto-spa
Autofashion - Bolt on and it fits Tein coilovers, pricey: http://www.autofashionstore.com/vrhsucki.html
11-15-11, 09:18 AM
#40
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interested in this system i keep cracking my front bumper and tired of ruinning it.
Tried to do more research and i heard from a friend exoticair.com is coming out soon. Does anyone know anything???
Tried to do more research and i heard from a friend exoticair.com is coming out soon. Does anyone know anything???
11-15-11, 05:13 PM
#41
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11-15-11, 07:40 PM
#42
Derwin
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Sorry I have not update have not had time to work on the kit more.
Essentially:
Cups done - bolt on
FD Specific Reservoirs Done
Compressor Done - There are many locations to put it but people who are ABS-less would have the easiest time.
When we have a chance we will complete the solenoids and then will be the video and picture time. To many things cars/engines/parts in the garage/shop.
Essentially:
Cups done - bolt on
FD Specific Reservoirs Done
Compressor Done - There are many locations to put it but people who are ABS-less would have the easiest time.
When we have a chance we will complete the solenoids and then will be the video and picture time. To many things cars/engines/parts in the garage/shop.
11-16-11, 11:24 PM
#43
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http://vipdout.com/forum/vehicle/wes...'s-gs400)/
This is what i found out about exotic air cup suspension. It looks like they have lexus cars on them now and have been tested.
Now i need to just get a hold of a set!!!!!!!!
This is what i found out about exotic air cup suspension. It looks like they have lexus cars on them now and have been tested.
Now i need to just get a hold of a set!!!!!!!!
11-21-11, 12:31 PM
#44
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wow nice work!
Just a quick question for you, and this is purely from a wear prospective, actually wouldn't it have been better to put the cups on the bottom side of the spring?
If you look at the strut movement, placing it on the bottom side of the spring would hold the piston down so long as the spring is in compression. On the top, it's being held down by the spring in tension.
Try and think of it this way, if you were to release the spring with the suspension half the way down and the piston half the way up (like say you hit a bump and the cup is deflating) the spring would move both up to close the cup and down to rebound the wheel. If you mount it on the bottom, one end is fixed in space, so it only ever moves in one direction, keeps it simple.
Just trying to help! i've been shadowning the forum a lot as i dont currently own an rx-7, but i'm a motorsport engineer so cool diy's interest me!
EDIT: heres how the germans did it
with these guys you'd have to switch to bags though, cups are better but with a metal to metal contact, there will be chatter. You might want to consider a soft bump stop to go on the crown.
To make them fit on the bottom side, the cup would have to be "donut" shaped to accomodate for the thickness, but it can be done.
http://youtu.be/FwIGT2DMymA
Just a quick question for you, and this is purely from a wear prospective, actually wouldn't it have been better to put the cups on the bottom side of the spring?
If you look at the strut movement, placing it on the bottom side of the spring would hold the piston down so long as the spring is in compression. On the top, it's being held down by the spring in tension.
Try and think of it this way, if you were to release the spring with the suspension half the way down and the piston half the way up (like say you hit a bump and the cup is deflating) the spring would move both up to close the cup and down to rebound the wheel. If you mount it on the bottom, one end is fixed in space, so it only ever moves in one direction, keeps it simple.
Just trying to help! i've been shadowning the forum a lot as i dont currently own an rx-7, but i'm a motorsport engineer so cool diy's interest me!
EDIT: heres how the germans did it
with these guys you'd have to switch to bags though, cups are better but with a metal to metal contact, there will be chatter. You might want to consider a soft bump stop to go on the crown.
To make them fit on the bottom side, the cup would have to be "donut" shaped to accomodate for the thickness, but it can be done.
http://youtu.be/FwIGT2DMymA
Last edited by Gladius; 11-21-11 at 12:58 PM.
11-21-11, 09:29 PM
#45
Derwin
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wow nice work!
Just a quick question for you, and this is purely from a wear prospective, actually wouldn't it have been better to put the cups on the bottom side of the spring?
If you look at the strut movement, placing it on the bottom side of the spring would hold the piston down so long as the spring is in compression. On the top, it's being held down by the spring in tension.
Try and think of it this way, if you were to release the spring with the suspension half the way down and the piston half the way up (like say you hit a bump and the cup is deflating) the spring would move both up to close the cup and down to rebound the wheel. If you mount it on the bottom, one end is fixed in space, so it only ever moves in one direction, keeps it simple.
Just trying to help! i've been shadowning the forum a lot as i dont currently own an rx-7, but i'm a motorsport engineer so cool diy's interest me!
EDIT: heres how the germans did it
with these guys you'd have to switch to bags though, cups are better but with a metal to metal contact, there will be chatter. You might want to consider a soft bump stop to go on the crown.
To make them fit on the bottom side, the cup would have to be "donut" shaped to accomodate for the thickness, but it can be done.
Just a quick question for you, and this is purely from a wear prospective, actually wouldn't it have been better to put the cups on the bottom side of the spring?
If you look at the strut movement, placing it on the bottom side of the spring would hold the piston down so long as the spring is in compression. On the top, it's being held down by the spring in tension.
Try and think of it this way, if you were to release the spring with the suspension half the way down and the piston half the way up (like say you hit a bump and the cup is deflating) the spring would move both up to close the cup and down to rebound the wheel. If you mount it on the bottom, one end is fixed in space, so it only ever moves in one direction, keeps it simple.
Just trying to help! i've been shadowning the forum a lot as i dont currently own an rx-7, but i'm a motorsport engineer so cool diy's interest me!
EDIT: heres how the germans did it
with these guys you'd have to switch to bags though, cups are better but with a metal to metal contact, there will be chatter. You might want to consider a soft bump stop to go on the crown.
To make them fit on the bottom side, the cup would have to be "donut" shaped to accomodate for the thickness, but it can be done.
RE: KW, I really wish they made a kit for the FD I would have bought it in a second their product line is very nice.
RE: Deflating - This style is not meant to be driver on rather it is an obstacle avoidance/make your life easy mod, living in a metropolitan area it is a necessity.
Re: Metal to metal contact - Your spring to your mount is metal to metal also, chatter? Consider the cup a spacer.
11-21-11, 10:49 PM
#46
Nice work, it looks great! I have the same issue on and I'm not happy with having to permanently raise my ride height just so I can get into/out of my driveway. I love designing new things so I think I might start designing a hydraulic system like the one in the vid above. The beauty of the hydraulic system is that hydraulics don't compress so it will be much faster than air and will not compress on you if you hit a bump too fast.
Thanks for the inspiration.
BTW, to the person who was wondering how 200 psi would be enough to lift the car, it would be more than enough...
For example, if the ID of the cup is 2.5" then you would have roughly 4.9 square inches of surface area in each cup. Multiply that times 4 for each corner and you have 19.6 square inches times 200 psi (pounds PER square inch) and you could lift 3,920 pounds (minus some for friction of course).
Thanks for the inspiration.
BTW, to the person who was wondering how 200 psi would be enough to lift the car, it would be more than enough...
For example, if the ID of the cup is 2.5" then you would have roughly 4.9 square inches of surface area in each cup. Multiply that times 4 for each corner and you have 19.6 square inches times 200 psi (pounds PER square inch) and you could lift 3,920 pounds (minus some for friction of course).
