Does anyone know what the camber should be on a 951 with the car on jackstands? An approximation would be fine. I'd like to set camber reasonably close before setting it down again.

 

I think you should expect about a 3 degree change. So, if you want negative 1, start with positive 2 at full droop.

 

front or rear?

 

I was referring to the front.

 

I was asking about the front. Thanks !

 

I saw an odd thing this weekend. Swapped in some M474 stuff onto an S2, and did what you are talking about. We measured camber at several times: baseline, baseline with car on jackstands, and then post change. The odd part was that one side changed about 3 degrees (as Van stated) from flat and level to full droop, and the other side changed about 4. It traveled about 3/4 of an inch more than the other side. It followed the car, rather than the struts/springs. You might want to measure something to see how close they are (I assume the car is already apart, and you have no baseline) to each other. Any way you cut it, though, you won't hit it on the first time. ONe thing we did that helped was to leave it just loose enough to be able to kick or pull the top of the tire to get it closer. You'll lose that ability as the eccentrics get closer to the top or bottom, though.

 

I can measure mine tonight. It has a recent alignment and is up on stands with the wheels off (new rotors to measure from too.
The cars (yours and mine) may or may not be level, so this could skew the numbers a little.

 

Interesting- I would think the locations of the suspension pickup points would be well controlled during production, but maybe they weren't perfect.

Fortysixandtwo, if you get a chance to do that, I'd appreciate it. I think my car is pretty close to level (and I can check and correct for difference anyway).

 

Bushings are rubber, and forces are relatively low. I doubt it is build variability, probably just flex from the bushings, which are 20 years old.

 

car on jack stands on concrete floor
1.0° rear rake (rear lower) measured at center of drivers side door sill.
stearing wheel straight
measurement taken by placing protractor against wheel mounting surface of hub, in the vertical position, ahead of spindle.
Drivers side 3.5°
Passengers side 3°

 

Very dependent on how much droop or travel there is in the struts - which depends on the strut model/brand.

 

Could also be an issue with the strut towers flexing. A few weeks ago Chris White was saying 1/8" plus deflection was normal when you list the car up...