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Air suspension

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Air suspension Empty Air suspension

Post by skegguy on Sun Sep 20, 2020 10:40 pm

Hi I would like to fit air suspension to my Broadway EB , what is the advantages of this please
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Post by burlingtonboaby on Mon Sep 21, 2020 5:56 am

Well, ... Vastly improved road handling, especially cornering ,reduces roll, adjust your van side height on unlevel pitches .
Alko rear air assist is generally fitted to most vans, also Dunlop rear air assist is another brand.
Members will have their own preferences and should be able to answer your question in detail.
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Last edited by burlingtonboaby on Mon Sep 21, 2020 9:21 am; edited 1 time in total (Reason for editing : Typo)
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Post by modelman on Mon Sep 21, 2020 7:39 am

I fitted airbags to my previous & present van, & concur with all Boaby above PLUS, all our vans already put the suspension under probably 3/4 constant loading, so the springs never get 'time-off' so to speak.
The placement of an airbag will bring the spring back to somewhere near to its original span & thus allow a reasonable deflection of the suspension.
On my Talisman, the spring was 'flat' so any movement made it 'go-upwards' like a bridge span, with the airbags, it was again like a bow!!
The good bit it that you can press them up or down to suit your requirements. 
I went a bit over the top with my latest as its with an on board compressor, tank & L & R paddle valves. hugegrins

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Post by Caraman on Mon Sep 21, 2020 7:45 am

No experience of air suspension but if you have CP tyres and the dreaded Peugeot TPMS you are probably running your rear tyres at their maximum of 5.5 bar (80 psi).  That's fine if when your Broadway is fully loaded your rear axle mass is at or close to its MTPLM of 2000 kg but if it is substantially less than that, which it could be with an end bathroom, the air suspension could give you a softer ride.  The same principle would apply to your front CP tyres which are plated at 5.0 bar (73 psi) but I don't know if aftermarket air suspension is available for front axles.
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Post by burlingtonboaby on Mon Sep 21, 2020 9:32 am

It's not just a softer ride Caraman, it's the road handling, ever been over taken by a lorry on the road and feel that your back end getting pulled over ?.
Cornering roll is reduced especially if you have a longer body overhang over the rear axle..
I found the rear air assist ideal when traveling on and off Scottish ferries ,especially at low tide, I used to increase the bar pressure enough to clear the concrete ramp.
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Post by raymondo on Mon Sep 21, 2020 2:50 pm

My Nuevo at 4 years old had developed rear springs with a frown (as opposed to a smile) I remedied it by fitting "helper springs" which are coil springs which sit over the "bumpstops" (yes I know they arent really bump stops!) these returned a smile to the standard springs and gave some rear suspension  - which was virtually nil previously

Helper springs are not significantly cheaper than air bags but are a bit easier to fit  - can be done in 30 minutes in your driveway  however they wont split or puncture.

not really a recommendation just saying that air bags are not the only way to go
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Post by IanH on Mon Sep 21, 2020 4:15 pm

Agreed with most of above, but it wouldn't enter my head to use them to level it on a sloping pitch!
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Post by Tiggs on Mon Sep 21, 2020 4:20 pm

I have been thinking about fitting air suspension on our Broadway FB. Couple of questions. Will it affect the warranty. Does it have to be included as a modification for Insurance. Is there anywhere in the south Wales area that could be recommended.
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Post by modelman on Mon Sep 21, 2020 4:51 pm

To be on the safe-side, I told my insurers about all my additions, solar, air-sus, sat-dish, towbar etc.
That's all they'll need to make any possible claim difficult.

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Post by bolero boy on Tue Sep 22, 2020 9:06 am

there are different types of 'air suspension' from the bellows type 'air assist' from companies like Marcle or Dunlop....or full air suspension from the likes of VB where the existing suspension components are removed and 'full air' units replace them.
the cost difference reflects the different complexities and (presumably) benefits...

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Post by Gabjack on Thu Sep 24, 2020 1:34 pm

Just had Rubena Air suspension fitted to my 2017 Nuevo by TowbarsUk near Cambridge.
Instant difference to road handling and less crashing over potholes. still experimenting with pressures, but found as I don't usually carry a full load (it's only a short van) it seems to be happy with 2.0 to 2.2 Bar. started on 3 bar, but was a bit harsh.
Took 'Modelman's' advice and rang my insurer to fess up to a modification and they were totally fine about it - no additions to premium whatsoever (Direct Line). It is now added to my schedule if there are any future issues.
Looking forward to some (slightly) quieter trips in the future......
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