Air suspension pressure..

[Just smiffy]

I have air suspension on the back of a fiat ducato pvc what should the pressure be roughly please…

 

[Conal]

I have rear suspension on my Autotrail Delaware and have tried a few different settings. First 30, then 50 and now 60. I find the latter the best for a smoother drive and cornering.

 

[Just smiffy]

I have rear suspension on my Autotrail Delaware and have tried a few different settings. First 30, then 50 and now 60. I find the latter the best for a smoother drive and cornering.

PSI I assume, the seems rather high…

 

[Just smiffy]

At the moment it’s on 20psi

 

[Two on Tour]

Run our from 2.5 to 3 bar depending if it's a bit blowy or not.

 

[donkey]

There is no ideal pressure for all. You need to experiment. You will arrive at your ideal setting.

Geoff

 

[Fat Albert]

I travel with mine at 2.5 bar running at around 3800kgs (36 psi) but do drop down to .5 bar when not being used in the winter. Something I have always done maybe OCD but don't kill the poster

 

[Landy Andy]

2.5-3 bar depending on route, terrain.

 

[2GB Racing]

As stated you need to experiment, with mine rear assisted only, on a long chassis Boxer at max recommended pressure and not loaded it lifts the tow bar ball by around 35mm which is not favourable but with race trailer attached and water tanks hall full almost back to standard ride height.
No race trailer and empty tanks and 0.5 bar = min pressure for use and static storage = standard ride height.

 

[Just smiffy]

I don’t know why but I have never worked with bar, I’ve always gone with psi…

Driving home last night it felt ok, it’s not fully loaded yet so didn’t feel any roll… I’ll have to have a play when I’m loaded up..

 

[nabsim]

It will vary with manufacturer I guess but my AS system settings shown below

 

[Charente16]

I travel with mine at 2.5 bar running at around 3800kgs (36 psi) but do drop down to .5 bar when not being used in the winter. Something I have always done maybe OCD but don't kill the poster

0.5 bar is the 'minimum' stated pressure for 'VB' Air Bags when the vehicule is not in use. I run at 1.5 to 2 bar - absolute Max 2.5 bar, depending on load and in my opinion most importantly it depends on the route taken. and the 'driving style' required for said route.

Rear Air Bags do nothing for comfort but come into their own on motorways when subject to buffeting from side winds and passing HGVs'. Also, on curvy roads out in the sticks.

Robert

PS I'm thinking of fitting 'VB' front Coil Springs which are supposed to add the 'Comfort' factor!

 

[Badknee]

I don’t know why but I have never worked with bar, I’ve always gone with psi…

That’s ‘cos you is an old fart innitt

 

[Guigsy]

It depends on the airbag. Broader ones require less pressure. Don't assume the gauge range matches the airbags. The EasyTop system I had was maxed out at 40psi. Which was only about two thirds on the gauge. I normally ran about 20psi. But it was a light van.

 

[nabsim]

Definitely need to check for your particular brand looking at replies. As shown in the attachment I posted earlier my AS shouldn’t be used below 3 bar

 

[Just smiffy]

It will vary with manufacturer I guess but my AS system settings shown below

It seems il have to pump them up a little…

 

[nabsim]

It seems il have to pump them up a little…

Is your AS! They are very helpful on the phone, they sent me that leaflet after speaking with them about mine.

 

[Just smiffy]

Is your AS! They are very helpful on the phone, they sent me that leaflet after speaking with them about mine.

Not sure yet, I haven’t fully looked at it…

 

[Charente16]

Maximum stated pressure for a 'VB' Semi - Air System is 3.5 bar rolling and from 3.5 upto 6 bar static upto 5km/h, depending on whether you have the in -line compressor/Automatic Height Control unit.

Robert

 

[Conal]

Ours are Al-Ko own brand and the gauge reads 0 to 100. I assume that means it is set as a percentage rather than PSI.

 

[TheBig1]

there's airbags and there's airbags. Dunlop and Goodyear are very good and stronger than the likes of the rabina ones used on the cheap ebay kits. But nothing like as strong as the type used in truck suspension

 

[Drexl]

I have VB semi air on the rear axle (6.4m PVC fully loaded rear axle weighed at 1820kg). My usual setting is 0.5 bar for a comfy ride, if on twisting roads up to 2.0 bar - think the road on the north side of Loch Ness. Reduces rolling a lot.

 

[the1andonly]

C class 6m 2000kg rear axle started at 3bar towing now 2.5 towing and 2.2 bar solo. Not enough miles yet. a good place to start.

 

[JockandRita]

smiffy.

Congratulation on your new acquisition Garry. I hope you'll have many more happy years touring.

Having played about with different pressures, I have our IVECO rear air, and VB front semi air, set at 4 bar (60 psi), which seems to best suit our needs.

Cheers,

Jock.

 

[busbuddy]

Cant remember what brand my rear air assist is but minimum is 10 psi
On full load I run at 50 psi
On cheap weekend away I run at 35 psi

 

[IRHP]

I see only one gauge I hope you have an isolation valve. A single common system isn't great for reducing wallowing on corners , it can even make it worse.

 

[JockandRita]

I have one gauge and valve for the rear air, and one gauge and valve for the front air, (separate systems), with no ability to alter each corner individually, which works well for us.

Cheers,

Jock.

 

[TerryL]

I have one gauge and two isolation valves. I wish now I'd had an integral compressor fitted as well but I manage with my normal tyre compressor.

Fully loaded I run at 50-60 psi but empty prefer it lower, say 30 psi, otherwise the ride is a bit lively.

 

[Guigsy]

I have one gauge and two isolation valves. I wish now I'd had an integral compressor fitted as well but I manage with my normal tyre compressor.

I used a small bike pump that I clipped under the driver's seat. Took less than 2 minutes to pump up both sides from empty to ride pressure. The volume of air and pressure required is really low. A compressor might be convenient, but it really feels like overkill to me.

 

[nabsim]

there's airbags and there's airbags. Dunlop and Goodyear are very good and stronger than the likes of the rabina ones used on the cheap ebay kits. But nothing like as strong as the type used in truck suspension

When I rang AS and gave them the van reg number they said they had been fitted 12 years before. That put it around 2008 so not doing bad