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Discussion Starter · #1 ·
1. In a Cylinder, what is the Stroke size? Is it the Max Length of the cylinder when Max PSI is entered into it?

2. if you hold in the "inflate" button up to long or the Valve gets stuck Open... what will happen to all the air being shoved into the cylinder?
Or is the Max psi going into the cylinder determined by the Max psi of the compressor?

3. If so, I would want to match the max psi's of the Cylinders and the compressor, because if i go with a higher compressor psi, it will blowup the cylinder... right?

4. so when they say Max 145 psi in a cylinder, and you put 145 psi IN TO the cylinder, the cylinder is Fully extended to max height, correct?

5. If you have a Max 145 psi Cylinder and have a Max 100psi Compressor, you will never get your Cylinders to fully extend, correct?

6. And when you have a Max 145psi Cylinder and a Max 200psi Compressor... if the switch is held to long or valve gets stuck, the Cylinder WILL blow out, correct?

7. when there is 0 psi in the cylinder you are at the lowest the car will go, but because these are metal and not "bags" we do not have to worry about creasing and puncturing a bag, once the cylinder is completly out of air, thats it, and you dont have to worry about it fucking up. is that right?

8. After installing the new air suspension, do you go have the car realigned right away? or no?


Sorry for all the noob questions all, this is pretty much the only thing i dont understand in the systems yet.
Thanks all!
 

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1. depends on the product the how much extension it has. the max pressure is the rating they give it. so if the product says 150psi max or 300psi max it will more than likly be extended fully before the pressure is reached. depends on the product.
2. if you hold the switch open, the air will equel its self out between the tank and cylinder or bag. so if you have 200psi in the tank and hold it, it will level out. it wont be what was in the tank because the volume spread out the pressure throw the extra volume to fill.
3 obay the cylinders max pressure. air tanks we all abuse the max pressure.
4. yes. but most cases it will have already reached its max extisions before this max pressure.
5.maybe...
6.maybe. i would never use something with that low or thresh hold.
7. bottoming it out...
8. some do some dont. i feel the car will lose it after a short time.
 

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Discussion Starter · #3 ·
thanks for all the info!

Question about #7...
When you say "bottoming it out"... your reffering to as low as the cylinder will possibly go... but what about the safty factor?
i.e. we do not have to worry about creasing and puncturing a bag, once the cylinder is completly out of air, thats it, you dont have to worry about it fucking up by bending/denting of screwing up a seal. is that right?
 

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once you get the to the bottom on a cylinder its not like you can ride like that, becouse it gets really i mean really bumpy (its like having no suspension at all, also you cant ride locked up ill make some loud noises, coming from the cylinder toping out when you hit a bump


you want to be in the middle of it to get a nice ride, you only want to ride low while going slow, well i do SS while driving , you have to get the hang of it
 

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Discussion Starter · #5 ·
yes i know, i'm reffering to when slamming it to the ground while parked...
i heard that if you slam it all the way down with an Airstrut, you risk creasing or puncturing or breaking the seal of the bag....

Is anything like that possiable with a Cylinder? I don't see how seals could be broken on the cylinder... but thats why i'm asking.

Thanks for the info!
 

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no, if you are just parking you will be fine. and if the bag struts are having problems when down then the installer fucked up, because there is no reson for that. sounds like someones trying to sale you some cans to me.
 

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Discussion Starter · #7 ·
I've got people talking shit about both sides Cylinders and AirStruts.

Can someone tell me WHICH ONE'S ARE BETTER to go with?
Cylinders or AirStruts? and why?

I have a place that sells just AirStruts that says "i dont sell Cylinders, Cylinders are crap!" and another place that dosent sell AirStruts, because he says they are crap. Neither of them give me REASONS why they are "crap"

So I dont know.
 

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Discussion Starter · #11 ·
here, i got an e-mail back from the guy who said "cylinders are crap".
Air cylinders were never designed to do what people do with them.  They have a bunch of internal seals that everytime they bottom out and top out, they are damaged more and more.  They only ride good at a certain height, all the way up or down ride like poo.  Most of the cylinders on the market now are cheaply made parts from overseas that don’t even have rebuild kits available. So when I cylinder starts leaking at the seals....you have to get a new cylinder.  Which is a pain because if you don’t get the same exact ones you might have to modify your brackets etc.  employee that works here ddint listen to me and got cylinders.  2 weeks later two of his cylinders were leaking.  Nothing he could do but buy more. 

Air struts bolt right in w/o brackety and have valves on them to adjust flow.  They ride good at all heights. And yes, it might blow the bag, but at least that is a warranty....and you don’t have to purchase a new one.

Ps.  I use to work for parker hannfin so I know a lot about all things pnematic and hydraulic. 
what do you all think of this?
 

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Originally posted by integraoligist@Sep 14 2005, 07:33 PM~3815824
here, i got an e-mail back from the guy who said "cylinders are crap".
what do you all think of this?
that email closely resembles my feelings on this subject. I disagree with the internal seals being destroyed by using the full extension though, the bore is the same from top to bottom...
 

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Discussion Starter · #13 ·
Originally posted by 216RIDER@Sep 14 2005, 07:18 PM~3816080
that email closely resembles my feelings on this subject.  I disagree with the internal seals being destroyed by using the full extension though, the bore is the same from top to bottom...
what do you have your Airstruts on? How long have you had them and any problems with them? What brand did you get? How high/low can you go with them?

Thanks!
 

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Originally posted by integraoligist@Sep 14 2005, 08:40 PM~3816201
what do you have your Airstruts on?  How long have you had them and any problems with them?  What brand did you get?  How high/low can you go with them?

Thanks!
Never owned anything with air except standard bags. Im just looking at the technicalities and the engineering aspects of both.
 

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Discussion Starter · #15 ·
Originally posted by 216RIDER@Sep 14 2005, 07:46 PM~3816238
Never owned anything with air except standard bags.  Im just looking at the technicalities and the engineering aspects of both.
so, why would you personaly think that the Struts are better then the Cylinders then?
 

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Originally posted by integraoligist@Sep 14 2005, 08:50 PM~3816270
so, why would you personaly think that the Struts are better then the Cylinders then?
IMO cylinders just dont take the abuse, the rods pit up, bend, break, studs snap off, strip out, seals eventually go bad from lack of lubrication mostly. the surface area is so small that it takes a higher PSI to lift, you probably realize that the higher the PSI, the worse the ride will be.

Strut bags are pretty foolproof. Youre not modifying the factory setup too far from stock. Nothing on the bag to break except the bag itself. They have a larger surface area for a better ride, plus you have to take their inherant flexibility into consideration. No seals to wear out and leak. So on and so forth
 

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Discussion Starter · #17 ·
understood, but what about all the problems that can arise with the AirStruts? Being that they are rubber bags...

Question: I can only lower the car about 4", then my skirts smack into the ground. I know that with Cylinders, you can add spacers between the brackets and the Cylinder to raise the Stopping point at 0psi... how can I do this with AirStruts seeing as though they are all 1 piece, that all bolts into position?
 

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Originally posted by integraoligist@Sep 14 2005, 08:21 PM~3817019
understood, but what about all the problems that can arise with the AirStruts?  Being that they are rubber bags...

Question: I can only lower the car about 4", then my skirts smack into the ground.  I know that with Cylinders, you can add spacers between the brackets and the Cylinder to raise the Stopping point at 0psi...    how can I do this with AirStruts seeing as though they are all 1 piece, that all bolts into position?
a correct install and there will not be anything to worrie about. rubber....what else is rubber? and semi trucks used air bags. propper install and no problems go hand in hand.

bump stops are the only way i could think of stopping down travel. call the company and ask
 

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Discussion Starter · #19 ·
true about the rubber...

not sure where i would be able to put the bump stops, i've e-mailed 4 places that sell the airstruts that same question, waiting for a responce from them all.

$$$ wise i've found kit's for all 4 wheels and bracketry:

Cylinders (regular shop parts) $489.95
Cylinders (SMC parts) $937
AirStruts $879.99
 

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where u located,im in ft worth tx ill take you for a spin, trust me my ride its not bad unless im locked up or slammed , also if you lube your cylinders the seals will last a long time, mine have never leaked, also if your go up and down wont damage the seals and they do sell the rebuild kits for most of the cheap ones, plus with cyilinders you can dogleg(3 wheel but with one rear tire in the air) they can also give you more lift, but im happy with mine
 
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