Hi, I am now the proud owner of Eibach Anti Roll Bars front and rear.
The existing ARB's have a brackets that control the bias of the rear brakes. So I need to transfer the bracket onto the new ARB's . I am also fitting lowering springs at the same time. I have looked on this forum and on a Barchetta tech manual CD, but cannot find any reference to how you setup the correct tension of the spring that attaches to the rear pressure regulators.
Would appreciate any ideas or info
Thanks in advance Dave M.

I took mine out and the brakes seem to work better. Good balance on the MOT too.

Never thought of that Pete, presume you took out the pressure regulators altogether, I will have to have a think about this, would it impact on an insurance claim perhaps.

I did some pretty intensive testing to make sure it doesn't affect the stability by trying silly things like hard braking mid corner (where I had room for mishaps!) and I've not had any issues. I thought I might end up with the ABS kicking in more if the rears locked up, but no. The brakes feel more responsive too.
Foot brake performance and balance were borderline for the MOT before removal but fine afterwards, I had wondered if there would be too much rear brake but apparently not.

Okay Thanks Pete for your input, I can only try it out without the bias valves. If I feel uncomfortable regarding the handling I will review. One point though I don't have ABS, would this be a problem?

From the results on mine, I don't think it'll be an issue.

Found this thread on the Fiat Coupe forum, I would presume the process would be the same just different weight values.
http://www.fccuk.org/forum/ubbthreads.php?ubb=showflat&Number=330922

I would think if you can get them properly set up and balanced, you would be better off using them. Welcome to have a blast in mine for comparison if you're over this way.

May take you up on that Pete, will have to be next year, the "B" is sorned now till next spring.
Perhaps we could persuade on or two others to join us.

Hi Dave, not sure what you are referring to here??? Barchetta rear brakes have restrictors but they are not controlled by anything, there is no spring or bracket certainly not on my 1997 model.
I have removed mine as the rear brakes are so under used and have had no issues at all. it also allows the brakes to bed in better and give the handbrake (sore point) a half chance of actually doing something.

Mine are the same as yours blackydog, assumed it was a later model thing?

Hi Blackydog, the pressure regulators are controlled by a spring that is attached to a bracket on the anti-roll bar, well it is on my 1996 car, I don't have ABS, could that be why mine is different perhaps.
Item 4 is the bracket that locates the spring.



Items 6 & 7 are the regulators



The method of operation is that under hard braking the rear of the car body will lift, this will effect the operation of the regulators against the attitude of the suspension, hopefully easing the rear brake effect, and stopping the car from going into a spin.

In that case Dave i guess lowering will make the car think braking is not so hard and allow more force through the restrictors. Personally I would remove them completely, but that's your call ultimately.