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DIY Air Ride Suspension


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So here I am again with more DIY madness I live in Southend On Sea the roads are crap and there are speed humps everywhere including down my road shortly and I'm fed up with having to plan my rou

This is a little preview of my controller needs a little editing but not far off      

Ok so it's been a mad year work wise barely had time to scratch my .... but I've managed to get a bit done this weekend . Even though it was on rubber mounts and no different  to the audi ve

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Haha that was a brilliant end to the video. Its the kinda thing that braided lines are meant to stop (if i understood the failure mode right). Could you get some braiding and braid the line yourself?

 

Otherwise, looks brilliant, nice and slow and controllable!

 

Im guessing this hose wouldn't be correct? 

300 mm 1/8 inch BSP and meant for carrying gas. I dont know if you wanted male or female though. It seems like googling "airbrush hose" gets you the right things, i think

 

https://www.manomano.co.uk/compressor-accessories/sealey-ggh300-rubber-delivery-hose-flexible-300mm-1-8bsp-gas-1401120

Edited by cs2000
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6 hours ago, cs2000 said:

Haha that was a brilliant end to the video. Its the kinda thing that braided lines are meant to stop (if i understood the failure mode right). Could you get some braiding and braid the line yourself?

 

Otherwise, looks brilliant, nice and slow and controllable!

 

Im guessing this hose wouldn't be correct? 

300 mm 1/8 inch BSP and meant for carrying gas. I dont know if you wanted male or female though. It seems like googling "airbrush hose" gets you the right things, i think

 

https://www.manomano.co.uk/compressor-accessories/sealey-ggh300-rubber-delivery-hose-flexible-300mm-1-8bsp-gas-1401120

if you look on the sealey site it's listed as a grease gun hose so probably stick with the current nylon airline for now :)

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Ahh OK, well the other option is to go full AN spec.

 

Each pipe would need

https://www.viperperformance.co.uk/fuel-hose-fittings-and-separators_10061_straightptfe-swivel-end-fittings.html

2x  - PTFE-S-6 BK

 

https://www.viperperformance.co.uk/fuel-hose-fittings-and-separators_9957_an-to-nptmale-adaptors.html

2x - ADAP-6-1/8NPT

 

and the length of tubing you need in PTFE stainless braid

https://www.viperperformance.co.uk/braided-fuel-hoses_9864_ptfe-hoses-t-e-f-l-o-n-braided-stailess-steel-fuel-hose-fuel-brakes.html

PTFE-06 HOSE

 

That hose is rated for 12,000 PSI working pressure. But, it may not be worth the time/investment ;)

Edited by cs2000
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  • 3 weeks later...

This project is still ongoing if a little slowly

I have made a new controller which is slightly more compact ( just for you @cs2000 ) and has proper connectors unlike the prototype sorry I only have this picture

 

IMG_20180923_145045.jpg.c159759e8a5de7a0b6587b24c669ac90.jpg

 

and have devised a way to and fitted the rear level sensors

 

IMG_20180927_120318.jpg.93537450ff8e5d1353b45fa35ba72f0e.jpg

 

IMG_20180927_153339.jpg.d08b9b9c9d1906f48fd085e1a407b2aa.jpg

 

hopefully I will get these wired into the controller on sunday as I'm working tomorrow :(

:)

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11 hours ago, andybp said:

 

 

IMG_20180923_145045.jpg.c159759e8a5de7a0b6587b24c669ac90.jpg

 

 

Err sorry but the cable ties are not the same way round - please build another one :lol:

 

Looks like its getting there though, keep up the good work mate  :thumbs:

 

 

 

 

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  • 2 weeks later...

Haha thanks, like the new design with some good connectors! Am pleased youre still working away on this. Following witn interest as usual :)

 

At least you can spin your own boards, i dont know how, always have to order mine from the far east. One mistake on a track means a 2 week wait for new boards :( 

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:tumbleweed:

 

On 28/09/2018 at 21:30, andybp said:

hopefully I will get these wired into the controller on sunday as I'm working tomorrow :(

 

Is it Sunday yet??

 

;):lol:

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On 08/10/2018 at 21:19, Keyser said:

:tumbleweed:

 

 

Is it Sunday yet??

 

;):lol:

Sorry I'm a bit behind Sunday's been and gone several times and in all honesty I'm not much further forward :blush:

You know what it's like life and work get in the way of playing with the Z. The rear level sensors are all connected and working and I've been optimising the software 

also the suspension seemed a bit rattly turns out the rose jointed drop links I made up the other year have worn not sure if they were poor quality or just because they were open but I've re-done them with good quality german sealed units

 

IMG_20181011_165214.jpg.efce2bc1cc8b789bf67ee10adb34ef79.jpg

 

also dropped the anti roll bar while I had them off and fitted the poly bushes I've had laying around for ages

 

IMG_20181013_132420.jpg.a9cdd8b6d848e8615d83f82c5359b021.jpg

 

also I've changed where I work, same company just closer to home but more importantly I now have access to a triple garage with an air compressor and a pit :yahoo:

:)

Edited by andybp
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  • 1 month later...

Ok I'm a bit behind with this project  it is progressing but other stuff keeps getting in the way

I've been working my way through changing all of the standard bushes for poly bushes this was not a choice as all the standard bonded rubber bushes are failing they are all original and I'm guessing the additional travel of the air ride setup was just too much for them something to bear in mind if anyone is considering this @cs2000 I have been media blasting the suspension arms before refitting, so doing a proper job.

still haven't got the front sensors fitted but I have fitted an additional small battery near the compressor as I was having some issues as it turns out the main battery was knackered which I have now changed but will leave the smaller one in because why not it's there now

:)

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  • 1 month later...
54 minutes ago, tony420z said:

Hi mate i haven't driven the zed since i got it back from dan at ame :(

Well that's a while - don't want to clutter Andy's thread I'll drop you a PM some time soon :thumbs:

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  • 5 months later...

Ok so it's been a mad year work wise barely had time to scratch my ....

but I've managed to get a bit done this weekend .

Even though it was on rubber mounts and no different  to the audi version the compressor was really noisy to the point where I was considering putting the springs back on so I took a look at what the big manufacturers (BMW/Audi) do and after some measuring I bought a complete second hand BMW X5 compressor and housing 

I wasn't worried about the state of the compressor as I have my one which is the same which I swapped with the standard BMW one as I didn't know it's condition with some modifications to the wiring and the exhaust valve setup I put it back in the acoustic housing

 

IMG_20190629_123305.jpg.83605339dad56dac8361c98edd2008cb.jpg

 

the standard fixing for the spare wheel was removed

 

IMG_20190629_123128.jpg.10e32d9fb3d2a2e3ce0301511fd07a71.jpg

 

and the new complete X5 housing fitted in it's place

 

IMG_20190629_125923.jpg.a0f4128a19005aceb745ea4daf175e1f.jpg

 

IMG_20190629_161458.jpg.ed292ab87d950a72c7500ae4f4ec4798.jpg

 

IMG_20190629_162213.jpg.6bd9efd3aa2365673f80aac402866784.jpg

 

I don't have any pictures but the spare fits to the BMW housing with the standard Nissan fixing bur it sits 1/2" too high which is not an issueas I will have to alter stuff to hide the tank anyway

 

so to the important bit I turned the ignition on and the compressor should have started as the tank was empty but absolutely nothing happened, I've done something stupid I thought to myself then the car started to go up, turns out I just couldn't hear it at all :teeth: it's gone from death rattle to silent you've got to love those Germans

 

also I'm still working my way through the suspension changing the standard bushes for poly as the extra suspension travel is knocking the standard bushes out

these are the second hand upper rear arms I've just done media blasted old bushes out new bushes in

 

IMG_20190620_202052.jpg.aeab2dc4e4df65392f392b2899589f34.jpg

 

IMG_20190621_191516.jpg.f634db197fe91722ea28924bdd478549.jpg

 

IMG_20190621_193725.jpg.4364340fe3d5217aec00820ee0d5d327.jpg

 

:)

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Good to see another update on this! Still keen on following along if you ever feel like knocking up a few of the special components you had to produce! Even just having a play with a PCB design would keep me happy :D (yes, I am sad haha)

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Nice to see a bot more progress mate :thumbs:

 

I've been busy breaking my toys so I'll be back in the Shed rebuilding them soon :lol:

 

Keep it coming :)

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  • 2 months later...

I'd hoped to have finished with the air ride project this year but the loss of my father threw more than a few spanners in the works but without his Diy attitude that seems to have rubbed off on me I probably wouldn't be doing stuff like this so thanks Dad

 

So this is the extent of what i had to do to fit the new air compressor and housing into the spare wheel well

 

IMG_20190630_161018.jpg.085880a47b5633e989d745444d6adf22.jpg

 

you can't even see it when the carpet is down

 

I'm also still refurbishing the suspension and changing all the bushes to poly just did the front upper arms

 

IMG_20190913_155856.jpg.b47ddd7e6f65d2bfc94b9b410341247f.jpg

 

the old ones were on their last legs new ones blasted and fitted with new poly bushes are much better

 

IMG_20190913_155008.jpg.08c6965677fba3f50c2cfe99bf65f15d.jpg

 

and the thing I bought to cheer me up made things a lot easier so much easier than sodding about with ramps and jacks

 

IMG_20190913_143348.jpg.6d17b05025eece644719acc325d352d3.jpg

 

still haven't fitted the level sensors to the front that's the next job on my list

 

:)

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10 hours ago, Paul K said:

i'm seriously considering investing in Quickjacks.....whats your verdict...good buy?

depends how much time you spend under your car, I think they're great good quality, good price does what it say's on the tin no complaints here

got mine from costco 

 https://www.costco.co.uk/Tyres-Automotive/Automotive/Trolley-Jacks-Axle-Stands/QuickJack-Portable-Automatic-Car-Lift-System-Jack-2268kg-Capacity-Model-BL-5000SLX/p/1268102

:)

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