C5 X7 rear hydro shock specs for use in hotrod?

[Jay-Bruce]

Hate to say it guys, but Joshua has run circles around you with the C5 suspension set up...

The BX used a valve connected to the anti rollbars via a springy link, and also connected to a pushrod from a position selectable lever beside the hand brake to control its height, far too clunky for what you want to achieve, go with the arduino controlling the pumps as you first mentioned. On the topic of the pumps, the citroen pump uses some proprietary fitting design, which cannot be flared by normal "citroen flaring tools", however, I can supply nipples and tube nuts to cross over from this proprietary "LDS fitting" to standard 45° single flare using a good quality flaring tool for 3/16" brake pipe. But be advised that normal brake pipe is only rated for pressure lower than the operating pressure of the system, so I'm using some thick walled cuni I've sourced with the nipples to make my own pipes and voila, we have a working LDS pipe / fittings system.

The fluid port on the rear struts is another proprietary thing with a spigot that has a couple of o-rings going and a single tab with a bolt hole, I haven't reverse engineered it yet, but another forum member going by the name SVOD has, however, I suspect you'll be able to engineer a connection for this given what you've said elsewhere in this thread. Another pit of useful information for you is that the spheres are an m36x1.5 thread, sealing on an o-ring.

It wouldn't take an expert in cad to knock up an adapter to say 3/8" NPT to allow you to remove the sphere, and screw in a 3/8" NPT --> JIC6 nipple, which would allow you to remotely mount the spheres inboard on your chassis, and thus prevent any packaging concerns from where the sphere that hangs below the upper pivot would be catching on other chassis/body parts. It would also allow you to put in any valving of your choice between the suspension cylinder and the sphere(s) to enable electronic controlled damping.

On the topic of electronic controlled damping, have a look into AMVAR, this is something on the C6, but not the C5, and was electronically variable damping on the C6. Alternatively, if you decide to stick with your conventional damper, have a look for citroen BX pressure regulator spheres, these came without any damping as standard, they were simply a pulsation dampener/pressure storage for the hydraulic system, and don't feature the valve stack in between the entrance port and the fluid chamber.

Most importantly, keep us up to date, I'm genuinely fascinated to see how this pans out