Thread: EAS self inflation valves

Thats exactly what I have at the moment ie I have to individually pump up each bag from a control box under the drivers seat and attached to the car electrics and the compressor with buttons for each bag plus on, pumping and exhaust buttons. Sounds good, but can be a PITA. Can't show a photo at the moment cos the car is away.

you could adapt an existing emergency pump up system to feed from the tank. Install a separate switch for the compressor with a safety cutout. With the ECU disabled, an airline feed from the tank to 4 x two-way taps (one for each airbag) set on a manifold would enable you isolate the valveblock and direct the air to each bag in turn rather than put an external airhose on a schrader valve as is done at present...

The Rovair system developed by Lee Bourgeois at LAB Electronics does this. You disconnect the ECU & plug in the manual height controller.

Thanks for the replies lads!

It would be good to utilise the existing hardware and simply run a few wires to the valves. Setting up new manifolds and what-not would be more headaches!

The compressor could be set up to run off the tank pressure switch rather than the ECU, that's easy enough, and four 3-way toggle switches into the engine bay might be pretty easy too.

As Gavin has said, there will likely need to be exhaust valves wired in too. Would be good to see pics and get more detail of your setup mate, when you find a moment!

I haven't had a look at exactly what is in that little EAS box to know how to go about it.

Cheers
Keithy

Start swotting up the RAVE manual...

Applying constant voltage to the individual valve solonoids may shorten their life a bit... they're designed to be driven by a pulsed current. - Known in some circles as a 'Hit & drop'. That is, a long 12-volt pulse is applied first, this stays on for a pre-set time, enough for the solonoid to pull all the way in, then the current is pulsed at a high frequency, with a 50% duty-cycle. - Effectively 6~8 volts. This is to hold the relay/solonoid in place, which needs less magnetic force to accomplish.

I guess you could do the same with a capacitor and resistor. No, have'nt worked out the values... !

The box of ZAPS that lives inside the EAS valve-box is the dumb thing that does the 'hitting & dropping', AFAIK. The ECU under the driver's seat does all the clever thinking and tells the peasant underneath which one to fire.

Or go the whole hog and duplicate the air 'circuit' using off the shelf solonoids, maybe from EvilBay. Drive it via a panel of push-buttons, pressure gauges, switches etc.

The second option would be the simple option.

If he has no luck with his dramas soon he will probably do that and ditch the factory setup!

Cheers
Keith

Something like this should work without the factory setup

1 2" Fast Air Valve Manifold 250 PSI FBSS Control Air Ride Suspension 574 | eBay

There's more info on Rovair here (although the link is out):
http://www.aulro.com/afvb/d3-d4-rrs/...de-system.html