Suspension Air Bags
Submitted: Monday, Apr 07, 2008 at 17:22
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CraigB
Just looking for some
feedback from those who have installed air bags in the rear such as Polyairs etc. How do they hold up on corrugated roads? Any brands to avoid. I have an LC100 with the ATS upgraded
suspension. Looking to increase ground clearance at rear just a little when loaded up.
Regards
CraigB
Reply By: Outbacktourer - Monday, Apr 07, 2008 at 17:39
Monday, Apr 07, 2008 at 17:39
I've had polyairs on 3 vehicles with no problems, know of others with coil rites, no problems either. If you get from www.trucksprings.com direct from the US you'll save a few $.
OT
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Reply By: Dave from P7OFFROAD Accredited Driver Training - Monday, Apr 07, 2008 at 17:47
Monday, Apr 07, 2008 at 17:47
I have polyairs all around on the GU, no problems whatsoever
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297221
Follow Up By: Member - shane (SA) - Monday, Apr 07, 2008 at 19:00
Monday, Apr 07, 2008 at 19:00
Dave, i am thinking about putting polyair's in the front of the gu also. what if anything did you change to fit them?
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Follow Up By: Dave from P7OFFROAD Accredited Driver Training - Monday, Apr 07, 2008 at 21:31
Monday, Apr 07, 2008 at 21:31
We have fairly long springs, so we had to install spacers top and bottom, these were certainly not a drama!
In terms of steering and
suspension changes, the airbags were done at the same time as our lift, hence just about everything had to be changed anyway.
If you are putting them into a standard car, then I can;t really see what would need to be changed to make them work!
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Follow Up By: Member - shane (SA) - Monday, Apr 07, 2008 at 21:53
Monday, Apr 07, 2008 at 21:53
thanks for that.
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Reply By: MEMBER - Darian (SA) - Monday, Apr 07, 2008 at 17:52
Monday, Apr 07, 2008 at 17:52
Had the Polyairs on my Jackaroo for quite a few years - got them from Truckspring in the US via the web - employed them to stop the minor tail sag when the camper was hooked up - they did many a long mile on corrugations (Gibb - Tanami -
Kalumburu Rd) - no issues at all.
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Reply By: Member - joc45 (WA) - Monday, Apr 07, 2008 at 18:13
Monday, Apr 07, 2008 at 18:13
Had Polyairs on my Mav for 10 yrs, no probs. Have had them on the GU Patrol for over 7 years, again, no probs.
Gerry
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Reply By: Crackles - Monday, Apr 07, 2008 at 18:17
Monday, Apr 07, 2008 at 18:17
The bags themselves hold up very
well. Most issues come from incorrect fitting particularly ensuring the rough edges are filed off where the hoses passes through the spring towers and making sure the air lines are protected from stone damage.
I'm a firm believer in not running the bags at their max 30 psi as have heard of a handful blowing out.
Fitting air bags increases the spring rate so ideally the shocks should be valved to suit. I had my Koni's re-valved & improved the rebound noticeably. With a 3.5 tonne Cruiser, med weight springs & 25 psi I find the ride on corrugations excellent although a heavier spring matched to the weight carried will always be better.
("Looking to increase ground clearance at rear just a little when loaded up") Of course Polyairs are not for lifting vehicles just maintaining the existing height.
Cheers Craig C.............
HZJ105 Polyair/Lovells/Koni.
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Reply By: zacc - Monday, Apr 07, 2008 at 18:46
Monday, Apr 07, 2008 at 18:46
put them on my nm pajero , handles a lot better aswell.
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Reply By: Kev & Darkie - Monday, Apr 07, 2008 at 19:31
Monday, Apr 07, 2008 at 19:31
I will let you know Friday as I am getting
mine fitted on Thursday :))
Cheers Kev
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Reply By: TD100 - Monday, Apr 07, 2008 at 19:51
Monday, Apr 07, 2008 at 19:51
Craig,
i have a 100s as
well with coil-rites in the rear,in cab adjuster connected to the ARB compressor and air tank.one of the best bits of kit i have.stops the bum drop when towing and trippin around with a fair bit of weight in it.im not going to bag other brands but i know my best mate had many dramas with another brand whereas others have had none.each to their own.cheers Paul
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Reply By: Member - Dick (Int) - Monday, Apr 07, 2008 at 20:19
Monday, Apr 07, 2008 at 20:19
Craig,I installed Polyair's on the rear of my Troopy today. It has a TJM GVM increase taking it to 3,700kg and heavy springs but with the 180L Aux tank it was sitting down a bit much. With the Polyairs fitted and with 50psi in them it is now very level.
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Reply By: Dave B (NSW) - Monday, Apr 07, 2008 at 20:56
Monday, Apr 07, 2008 at 20:56
I put Boss air bags on my 60 and am very happy with them.
I let all the air out of them when I haven't got the CT on and I am back to my standard
suspension then.
I only put air in them when I have the CT on the back.
Bought them direct from the manufacturer.
Dave
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Reply By: Old Dave - Monday, Apr 07, 2008 at 21:00
Monday, Apr 07, 2008 at 21:00
Craig
After having the information from this
forum my GU3 is booked in
on wednesday for lovell springs kyb shocks & polyairs
so it is ready for all my trips
dave
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Reply By: wendys - Monday, Apr 07, 2008 at 21:26
Monday, Apr 07, 2008 at 21:26
Have had polyairs fitted for rear coils on Defender 110, for 10 years. Done about 250,000 km over that time, including towing caravan some 35000km and also taken vehicle over some rough, corrugated tracks (e.g.
Cape York, Gulf track,
Simpson desert,
Mitchell Plateau etc). Only had one problem, in 2006, with a fitting at the top of bag, and the design of this is different on current ones. Other half swears by them for easing impact of van weight on vehicle
suspension.
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