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  • S4 owner first post

    Hi guys, new to Stance Works and new to air suspension and "stance" generally however not a newbie when it comes to cars and fabrication - I'm quite at home when it comes to track and race cars!

    The reason I've signed up to the boards is because I'm planning on installing air suspension to my current daily come tow car, which is a B5 Audi S4 Avant. I had never been interested in air however I've been swayed towards it for the following reasons -

    1. I'll be using it to tow the track car and a pet **** of mine is the look of a tow car dragging its arse on the tarmac

    2. I do like the look of a low car....

    3. ...and the traffic dodging back road out of work has mountains as speed bumps!

    4. (and possibly most important here) A mate of mine sold me a new firestone kit he removed from another car (not an Audi) so cheap I couldn't refuse.

    I'll get pictures up of what I've got already - a compressor, tank, McPherson bag-over struts which look universal, 2 brand new bellows for beam axle type rear suspension (which will be up for sale/swap), control panel with 2x manual paddle switches and twin gauge.

    From today's browsing I'm finding I should look to get another 2 paddles and gauge as a minimum so I'm not bleeding air side to side round corners.

    The front setup should be fairly simple, I'm planning on modifying some dampers to accept the bagovers and it should just bolt up like stock.

    The rears are more likely to cause problems - mainly with clearance due to the quattro. Here are a couple of links to other projects that show what I'm working with.

    Link 1
    Link 2





    As you can see, space is tight and I don't think I'd get away with bellows. Anyone able to make any suggestions? Would sleeves be up to the load of towing? Do either of the bag setups linked look like off the shelf / universal bags?

    And final question for now - I do around 45k motorway miles a year - all year round. How reliable is air and are there any precautions you'd advise?

    Thanks in advance guys!

    Andy

  • #2
    Since your car has struts in the rear, I would strongly recommend going with an air strut like the Air Lift Slam Series Rear Struts (your first photo).

    Like you mentioned there isn't much room back there at all so a bag-over-coil type setup wouldn't be feasible for the rear and no one makes a sleeve style bag that will allow you to pass your current struts through.

    This setup should be fine for towing but you will definitely want to run an 8 valve setup (right now you have a four valve system with two paddle valves). If you just went with two paddle valves, the air would be able to transfer from side to side while corning which will make your B5 handle terribly and that would be pretty scary if you were towing a load.

    Air is as reliable as the quality of the install. If you go at it and do it quick just to get the job done, you might run into issues later on. If you take your time and make sure your air lines aren't going to rub on anything and make sure that everything is installed 100% properly, it will be as reliable as any other suspension setup.

    On another note (coming from an owner of a B5 on air), you should look at your rear upper strut housings when you take the suspension off. When I did my air install, I was surprised to see that they were extremely rusty and were rotted the whole way through on the back side. I replaced mine for around $500usd I think. Definitely a worthwhile investment if you are going to be towing!

    - www.bagriders.com - Email us at: sales@bagriders.com -

    - Did you find a lower price? We Price Match! -

    Comment


    • #3
      Thanks for the detailed response.I'm aware the rear upper strut housings are prone to rust - being the owner of 3 B5 Quattro's!

      I'll update this thread as my build progresses, but it's going to be anything but quick!

      Comment


      • #4
        Ok, the other day I finally had a chance to take apart the air setup from the front McPherson struts and they're completely not what I was expecting lol.

        Completely forgot to take pics but i'll get some next time I'm over at the house. I was expecting the front bags to be similar to this -

        http://www.youngprodigys.com/AIRRIDE/Photo%20141.jpg

        But they're not Basically the bottom of the bag is bolted to a circular plate welded directly to the damper body which creates the bottom seal. At the top the circular plate has a seal against the shaft of the damper to create the top seal. Been looking for pictures online but can't seem to find anything similar.

        Any advice? Is this a normal setup?

        Comment


        • #5
          Originally posted by Andy P View Post
          Ok, the other day I finally had a chance to take apart the air setup from the front McPherson struts and they're completely not what I was expecting lol.

          Completely forgot to take pics but i'll get some next time I'm over at the house. I was expecting the front bags to be similar to this -

          http://www.youngprodigys.com/AIRRIDE/Photo%20141.jpg

          But they're not Basically the bottom of the bag is bolted to a circular plate welded directly to the damper body which creates the bottom seal. At the top the circular plate has a seal against the shaft of the damper to create the top seal. Been looking for pictures online but can't seem to find anything similar.

          Any advice? Is this a normal setup?
          Yeah that's a normal setup and sounds like an actual air strut that was designed for the car. The picture of the bag in that link is an Aero Sport which is a bag-over-coil bag. Those usually don't ride as nice as an air strut.

          - www.bagriders.com - Email us at: sales@bagriders.com -

          - Did you find a lower price? We Price Match! -

          Comment


          • #6
            Thanks again Rali - Are you the only person here that replies to threads?

            Comment


            • #7
              Haha sure thing, let me know if you have any other questions!

              - www.bagriders.com - Email us at: sales@bagriders.com -

              - Did you find a lower price? We Price Match! -

              Comment


              • #8
                Gonna have to post lots of pics!

                Comment


                • #9
                  but it's going to be anything but quick!

                  Comment


                  • #10
                    Don't tell me he gave up already!

                    Comment


                    • #11
                      person here that replies to threads?

                      Comment


                      • #12
                        Thanks again Rali - Are you the only person here that replies to threads?

                        Comment


                        • #13
                          Haha, sorry I've been busy living life!

                          I couldn't do too much as the time because I was doing almost 1k miles a week. For the short term I just stuck some cheap coilovers on there to get some instant low.



                          Got some spare time over the holidays and I've made a bit of progress. I'll stick a pic up in a sec.

                          Andy

                          Comment


                          • #14




                            Using a spare oem damper to test on before I decide to blow a load on aftermarket adjustable dampers. Before I can test fit it however, I've got to convert the top plate and seal from 22mm down to 15mm to suit my shafts.

                            Comment


                            • #15
                              Tiny update... https://www.youtube.com/watch?v=X8gi...e_gdata_player

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