rbeggs

Lots of stuff on the list about suspension. This question is quirky enough not to have been addressed, at least not directly in previous posts.

Car is a '96C4S. New Bilsteins all around. The car came with ROW M030 on the front (Orange Green green) ROW M033 (pink) on the rear.

I understand that the front M030's are progressive, stiffer and provide some lowering. The rear M033's are a standard ROW issue for the C4S and are linear and softer than the rear ROW M030, or so I believe. I Don't know if the rear ROW M030 is linear or progessive.

The questions are, what kind of performance hit am I going to take with this configuration? Why would someone do this in the first place? Car is a DD.

Many thanks,

RB

TroyN

Clearly the balance is not going to be right with softer springs in the rear. The rear is heavier so requires a stiffer spring than the front in order to balance the car. Your car will understeer a lot with the configuration you have. It's probably a safer configuration than going M030 in the rear and M033 in the front. No good reason for the PO to do this.

The ROW M030 is a progressive-rate spring, fyi.

Garth S

Hummm - I thought that the rear ROW springs were linear: the fronts are clearly progressive.
I have no idea of the spring rate difference between your MO33's vs MO30's .... but rather than tear them out, you might consider going to a stiffer rear bar like the 21mm ROW turbo. This may give a better idea of what handling change to expect ..... and can be done with far faster and with less grief than a spring change.

rbeggs

Thanks for the info.

RB