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  1. #1
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    Airbag Suspension

    Hello AB!

    I was wondering if anyone has any experience here with airbag suspension? I'm looking to bag my A5, but am having trouble finding suppliers.

    I live in Brisbane, Australia so it is a bit*h to have coilovers, as would be forever adjusting.

    Thoughts/Comments/Opinions would be awesome!

    Click here to enlarge

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    Hello and welcome!

    I have a suggestion for you, have you heard of Air Lift Company? They have done a bunch of bagged Audi's:

    Click here to enlarge

    Click here to enlarge

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    They seem to be very popular in the VW/Audi world.
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    Great - thanks mate. I will be slammed before you know it Click here to enlarge

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    Click here to enlarge Originally Posted by Jagree Click here to enlarge
    Great - thanks mate. I will be slammed before you know it Click here to enlarge
    My pleasure! Post pics and impressions...
    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale: http://www.boostaddict.com/showthrea...r-kit-for-sale

  5. #5
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    Accuair has just got done developing a kit for the B8, I know they are working on other audi platforms.
    i just ordered a FULL accuair system with iPhone integration for a badass 68 Mercedes I'm air bagging for a customer. It's a REALLY nice kit! (And if you need one ordered up and sent to you, let me know Click here to enlarge )
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    I'm not one for bags, but I've heard good things about accuair too.

    Make sure you go with hard lines if you want that extra "swag" Click here to enlarge

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    Click here to enlarge Originally Posted by chrisisnapping Click here to enlarge
    I'm not one for bags, but I've heard good things about accuair too.

    Make sure you go with hard lines if you want that extra "swag" Click here to enlarge
    What do hard lines mean?
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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    What do hard lines mean?
    I assume none flexible metal lines(Like you break lines) as opposed to the flexible plastic/nylon air line hose that are normally used. They function the same one just looks more bad ass and is in theory, more reliable.


    I would really like to see for the 335 what I saw on a lexus. Basically small bags on his coil overs so he could puff the care up 2-3 inches to clear driveways etc. and then back down for his normal driving. My main issue with going low is that I need to take it in crappy places and can't make it to the lake house in a lowered car.

  9. #9
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    Click here to enlarge Originally Posted by Torgus Click here to enlarge
    I assume none flexible metal lines(Like you break lines) as opposed to the flexible plastic/nylon air line hose that are normally used. They function the same one just looks more bad ass and is in theory, more reliable.


    I would really like to see for the 335 what I saw on a lexus. Basically small bags on his coil overs so he could puff the care up 2-3 inches to clear driveways etc. and then back down for his normal driving. My main issue with going low is that I need to take it in crappy places and can't make it to the lake house in a lowered car.
    I see hard lines seem like a no-brainer then.

    Anyone know how the cars handle with these setups?
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    Actually no, hard lines are NOT reliable, and I DO NOT RECOMMEND THEM IN ANY WAY SHAPE OR FORM.
    there is a reason you use the black flexible poly lines.
    let me show you where these lines originated from
    http://m.youtube.com/watch?v=Jxv2hOlFav4


    semi trucks regularly flex a LOT when driving. In fact, its a built in design. The flex keeps things from breaking. It sounds weird, but if everything on the truck was an attempt to keep it ridgid, then the fasteners and mounts would become fatigued extremely fast.

    so, as a longevity standpoint, they allow flex to happen.
    Poly lines have been used on semis for YEARS, and are very very reliable.
    they are easy to route, very tough and easy to repair in the field. They also don't expand under pressure, and are cheap. It's a win/win/win.


    hard lines mounted to the frame would become subjected to heavy twisting and frame flex forces that ultimately would make the mounts break off, or tubing rupture.


    cars with airbags handle pretty good actually, if they are set up correctly. If they have a solenoid for each corner, you can keep the bags from transferring air from side to side, causing exadurated sway.

    they have their pros and cons (springs vs bags)
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    Click here to enlarge Originally Posted by alex@ABRhouston Click here to enlarge
    Actually no, hard lines are NOT reliable, and I DO NOT RECOMMEND THEM IN ANY WAY SHAPE OR FORM.
    there is a reason you use the black flexible poly lines.
    let me show you where these lines originated from
    http://m.youtube.com/watch?v=Jxv2hOlFav4


    semi trucks regularly flex a LOT when driving. In fact, its a built in design. The flex keeps things from breaking. It sounds weird, but if everything on the truck was an attempt to keep it ridgid, then the fasteners and mounts would become fatigued extremely fast.

    so, as a longevity standpoint, they allow flex to happen.
    Poly lines have been used on semis for YEARS, and are very very reliable.
    they are easy to route, very tough and easy to repair in the field. They also don't expand under pressure, and are cheap. It's a win/win/win.


    hard lines mounted to the frame would become subjected to heavy twisting and frame flex forces that ultimately would make the mounts break off, or tubing rupture.
    I mean this with the utmost respect but this is a car not a semi made to last over a million miles pulling over 60k pounds per load. Hardlines have been use for break, fuel, oil over the years.


    Click here to enlarge

    I think they are more for show and are not DOT approved but plenty of people use them and I haven't heard any horror stories...
    Last edited by Torgus; 07-30-2013 at 12:09 PM.

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    Click here to enlarge Originally Posted by Torgus Click here to enlarge
    I assume none flexible metal lines(Like you break lines) as opposed to the flexible plastic/nylon air line hose that are normally used. They function the same one just looks more bad ass and is in theory, more reliable.


    I would really like to see for the 335 what I saw on a lexus. Basically small bags on his coil overs so he could puff the care up 2-3 inches to clear driveways etc. and then back down for his normal driving. My main issue with going low is that I need to take it in crappy places and can't make it to the lake house in a lowered car.


    They make bags for coil overs or struts.
    http://www.universalairsuspension.co...rsal-p-31.html
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    Click here to enlarge Originally Posted by Torgus Click here to enlarge
    I mean this with the utmost respect but this is a car not a semi made to last over a million miles pulling over 60k pounds per load.

    Please explain why metal break lines have been used on cars and trucks for YEARS. If they were not safe they wouldn't be allowed by the NHSA.
    no worries.
    there A are a few different reasons.
    have you ever noticed that (most) brake lines are not hard mounted? They are always in a rubber or plastic mount.
    a very small 3mm hard line has "flex" built into it. I can take the abuse much better than a larger line. A 3/8" or 15mm hard line doesn't really. It's diameter makes it rigid.
    an OEM line that was designed by engineers, and installed by the factory vs. someone who is doing this in their driveway or shop and doesn't get the concept of vehicle flex.
    hard lines mean fitting ends that are entertaining. Leaks. No stress can be applied to the ends
    plastic lines are very easy to fix if the line leaks, you just cut the hose back 3/4" and reinstall. Done.
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    Click here to enlarge Originally Posted by alex@ABRhouston Click here to enlarge
    cars with airbags handle pretty good actually, if they are set up correctly. If they have a solenoid for each corner, you can keep the bags from transferring air from side to side, causing exadurated sway.

    they have their pros and cons (springs vs bags)
    But springs handle better?
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    Well, yes and no. Your kinda stuck with a spring at one height (unless you have adjustability ala coil over or what-have-you)..... Progressive rate springs are cool- I had a set on my mud truck with coils in the front.

    off road coilovers have multiple springs with different rates depending on suspension travel....


    but they don't allow you to adjust ride height like an air bag.
    pressure in a bag has a direct relationship to "spring" tension....
    20psi in a bag is going to (obviously) be Low and floppy vs. 200lbs- Full and very stiff.
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    Click here to enlarge Originally Posted by alex@ABRhouston Click here to enlarge
    They make bags for coil overs or struts.
    http://www.universalairsuspension.co...rsal-p-31.html
    Thanks! Now I just need to wait for someone else to be the guinea pig.

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    No need, bring it on over, I'll knock it out Click here to enlarge

    give me a few weeks, I think I have an E65 on coil overs that will be doing an airbag swap with accuair.
    this Mercedes I'm doing is just plain airbags.... Think I'm gonna use an RE6
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    @alex@ABRhouston

    Would you ever consider putting the coil over bags on a coil over / performance based car? Would there be a high rate of failure from launching, hard driving etc?




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    Any pics of that Mercedes? Build thread is a good idea.
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    As long as the bag is not subjected to rubbing on anything, there is no reason why it would fail prematurely from anything like launching.
    airbags, in my opinion cause wheelhop sometimes if the shock can't control it, but its not too bad.

    I'll start screwing around with some pics soon sticky. It's on the lift right now, I'm measuring for airbags and bracket.

    that means imma have to go over to benzboost huh?
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    Click here to enlarge Originally Posted by alex@ABRhouston Click here to enlarge
    that means imma have to go over to benzboost huh?
    BenzBoost or GermanBoost, either or.
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    There isn't a spot for a w108 chassis :p
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    Click here to enlarge Originally Posted by alex@ABRhouston Click here to enlarge
    There isn't a spot for a w108 chassis :p
    Yes there is, General Mercedes Click here to enlarge
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