Skwerl

In my 90S2 I believe it's possible to change the rear ride height. Is there a reason I would do this, altering the stock ride height? Ideally the car would sit level, right? Is it not level from the factory? How will lowering the rear effect handling?

keith

American spec cars tend to be high in the rear to meet US bumper height laws.

Lowering should RESTORE handling and braking perormance.

An easy way to check is to park on a level surface, and place a level on the bottom of the door sill (with door open, of course).

IceShark

If you have a north american market car, the rear was jacked higher than ROW cars just so they could meet bumper height requirements.

If you lower the rear you will lower the center of gravity which *will* be good. And I would think there should be less weight shift forward under braking and less side roll also, but I'm no suspension expert.

Skwerl

Here http://www.tech-session.com/Paragon/Tech/944_rrha.htm it says the S2's rear is set at 522mm versus 533mm for the front. Does this not mean the front is higher than the rear? In any case, for a perfectly level ride, how far would I adjust the 36mm eccentric bolt?

Skip

Depending on what you are doing with the car... it should be level, or just slightly raked to the rear (rear lower than front). The ride height adjustment eccentric is not a calibrated unit... i.e. there is not magic number or angle to turn it to. You just have to trial and error your way to levelness.

The wheel arches method of measuring can be a bit inaccurate, best to measure from a more reliable point. For more info on this, check out this link: 944 Ride Height Measurement

Also, the front and rear wheel arches are different heights in relation to the horizontal edge of the lower frame. Hence the difference in wheel arch measurements.

Good Luck!