Thread: 4 corner airbags ( spring replacement) - anyone running them?

Originally Posted by mark2

Could those with the Airbag Man rear kit advise how it affected overall suspension travel, in particular droop? I can see that the bump stop spacer reduces theoretical compression travel, which is ok with me because my tyres and current spring rate dont let me get near the bump stops anyway. However I'd be reluctant to give up much droop travel.

Putting the question another way, does droop travel run out before the shock is at full extension, or is the shock the extension limiter with some further travel once the shock is disconnected?

I dont think it has reduced it. These are TJM shocks for I think a 50mm lift.

Car is on a hoist and it is the shock that is limiting the droop. Although, probably wouldn't want to drop much further.

Originally Posted by mark2

Could those with the Airbag Man rear kit advise how it affected overall suspension travel, in particular droop? I can see that the bump stop spacer reduces theoretical compression travel, which is ok with me because my tyres and current spring rate dont let me get near the bump stops anyway. However I'd be reluctant to give up much droop travel.

Putting the question another way, does droop travel run out before the shock is at full extension, or is the shock the extension limiter with some further travel once the shock is disconnected?

As I only have the heavy duty Bilstein shock which are not 50mm lift. The shock is the limiter . As I use the 130 for towing and camping manly now I don't need the droop travel as much but if I needed one of the rear wheels to drop further I have released air out of the other side Airbag , have also done this when I have been traversing on a cross slop as well and I have lockers front and rear and a good winch.
Cheers

I've spoken to a guy at Airsprings WA about in cab controls.

He has recommended this (two sets to do front and rear)
AC1041D - Kit - Dual Digital Air Control Electric – Airbag Man Suspension



He had said that this will be compliant in WA, as long as it is wired to the handbrake switch (only operable when handbrake is engaged). I had queried him as to whether it needed to be self leveling. he had said, no only needs to be inoperable when the vehicle is moving.

I then phoned a vehicle engineer and asked what was needed etc. to get it engineered. He had said the same. Was happy for me to install it myself, as he would certify it and inspect it. Also said he was happy for me to install switches in the rear if I wished. They did not need to be within reach of the driver.

Originally Posted by clintooo

I've spoken to a guy at Airsprings WA about in cab controls.

He has recommended this (two sets to do front and rear)
AC1041D - Kit - Dual Digital Air Control Electric – Airbag Man Suspension



He had said that this will be compliant in WA, as long as it is wired to the handbrake switch (only operable when handbrake is engaged). I had queried him as to whether it needed to be self leveling. he had said, no only needs to be inoperable when the vehicle is moving.

I then phoned a vehicle engineer and asked what was needed etc. to get it engineered. He had said the same. Was happy for me to install it myself, as he would certify it and inspect it. Also said he was happy for me to install switches in the rear if I wished. They did not need to be within reach of the driver.

That’s the kit I have for the rear of mine......

where did you mount your gauge and switches?



I've also got the same kit, which I am yet to install in the camper trailer I am building.

Originally Posted by clintooo

where did you mount your gauge and switches?



I've also got the same kit, which I am yet to install in the camper trailer I am building.

I have a raptor engineering double din dash....gauge is mounted as it’s only wires....there are spots for the paddle switches but I have got around to running the air lines up to the dash. Currently they are next to the drivers seat base.

No interlocks on mine, in the early days I made slight adjustments while driving but it pretty much set and forget on the hard top. Engineer didn’t seem worried about where the paddle were mounted.

pic of Koni raid 0-40mm compared to the buggered tjm shock

konis look massive compared to the tjm, plus they are alot heavier.

that shock length seemed to be at the limit of my airbags droop

Thanks.

What would be the main advantage of air springs to coil? In a defender? If....Not for the adjustable ride height

Cheers

Originally Posted by MLD

not quite. more PSI at static the bag extends giving you lift. If you hit a speed bump the axle moves up. the piston (lower seat as described earlier) is pushed into the void in the bag. That action decreases the available volume in the bag for the same volume of air, thus increasing PSI. The increase in PSI gives you a firmer rate while the bag is compressed but then equalises as the suspension returns to its static height. the same principle applies wherever you set your initial ride height (within reason). the reverse applies at extension of the bag. clear as mud?