Thread: Disco 2 SLS Resurrection. Help needed.

Now I need help understanding how the system levels.

There is a single line that comes from the Compressor. The compressor has a exhaust valve on the end so it can both inflate and deflate.

But only 1 hose leads to 2 solinoids for left and right bags.

Easy if both are low then the compressor will come on and both valves will open. When one bag reaches the correct height, that valve will turn off leaving the second bag to inflate until it reaches correct height and then both the remaining valve and compressor will tunr off. Happ Days.

Same goes if both are over height. Exhaust opens and both valves. One reashed correct height and valve closes then the second follows and all valves close.

What I dont know though is what happens when one is heigh and the other low. The compressor/exhaust unit can only do one or the other. If the rear wheel is proped up on something the pressure will be higher but height in relation to the chassis will be lower.

Im guessing it will lower the high side until its at correct height and then raise the low side. My guess is then the previously lowered side will then be high again?

Help please.

Excuse my spelling and grammer, Ive had a few drinks after pulling this thing apart today.

Happy Days.

Maybe I should just stop posting until tomorrow but here's what I'm thinking.

Why do we need this complicated computer to control the height? Why not just connect taps to the axles. When the axle is up, the valve will open and inflate the bag, when the axle is down, another valve will open and deflate the bag.

Then I thought. This would be no good. When you are going around a corner the outside bag will be inflating and the inside bag will be deflating. When you exit the corner the vehicle could be on and lean and you could tip over on the next corner. Plus we have ACE to look after this stuff.

So now I'm thinking maybe the system understands that if one side is down and the other side is up the vehicle is just parked on uneven ground and it will not infalte the lower side or raise the lower.

Just lost to how it works.

Happy Days.

"How it works" is described in RAVE: Rear Suspension >> Description and Operation.

Why do you need it? Perhaps you don't - it self levels the vehicle and provides 40mm lift via the off-road mode. Is any of that important to you?

Cheers
Paul

As far as my limited understanding goes i didnt think it would make changes for one corner. I know it lets air out when i have stopped and turned the Disco off and it puts some in when i start it up. The same happens when i put my trailer on or i load up the rear cargo area.

Mind you i subscribe to the KISS principle.

Craig

Originally Posted by Mudguard

As far as my limited understanding goes i didnt think it would make changes for one corner.

Hey mate,

The reason I think it makes changes spesifically to each side is the 2 seperate valves for each side. Otherwise I'd expect just a T peice.

Happy Days.

Originally Posted by OffTrack

"How it works" is described in RAVE: Rear Suspension >> Description and Operation.

Why do you need it? Perhaps you don't - it self levels the vehicle and provides 40mm lift via the off-road mode. Is any of that important to you?

Cheers
Paul

Yep, looks like I'm going to have to get me a RAV CD. I'm I can get one through AULRO but I haven't been able to find the link yet. I know I can get on on eBay but I'd rather support the site.

Yeah, I want to know how it works because I'm slightly modifying it. My compressor has had the possum. Firstly I'm using a different compressor, it'll feed a air tank that will feed the SLS system. Using another compressor has been done before and nothing new but fine details are not defined. Knowing how the system works will help me getting it closer to right with the first setup.

Happy Days.

Originally Posted by joel0407

Hey mate,

The reason I think it makes changes spesifically to each side is the 2 seperate valves for each side. Otherwise I'd expect just a T peice.

Happy Days.

I think Mudguard means that the height doesn't change by turning one corner.
The height control is a very dampened system, it is designed to keep height constant for a long term change in load on the axle, not for a short term change due to track conditions.

Originally Posted by biggin

I think Mudguard means that the height doesn't change by turning one corner.
The height control is a very dampened system, it is designed to keep height constant for a long term change in load on the axle, not for a short term change due to track conditions.

Yeah, sorry. When he said corner, I thought he meant vehicle corner not road corner.

Yeah I also realize it doesn't make changes that quickly. I was tring to explain that an instant system like valves connected directly to the axle would not work.


Happy Days