I have Ground Control coilovers and Koni Yellows on my MY06 S. I am looking for some advice on what to set the dampers at for the following applications:

1. Autocrossing (and daily driving)
2. Drag racing

Your feedback is most appreciated.

 

Daily driving - adjust to soft on all 4 corners for a more comfortable ride since you will rarely push your car towards the limits on the street.

Drag racing - front full stiff, rear full soft.

Autocross - too many variables like track surface and driver preference.

 

Since the Konis are rebound adjustable, I would think it would be the opposite. If the rebound was set soft in the front and hard in the rear, it would allow maximum weight transfer to the rear and keep the rear planted.

 

Correct you are.

You want the front end to lift, not the rear end to squat

 

Ok...for drag racing I will set the set the fronts at "semi soft" and the rears at "full hard". What about for autocrossing (which would be the same setup I would use for daily driving)?

 

Dude, we have no idea what other suspension modifications you have done to your car. We don't know how your car handles right now. We don't know your driving style. We can't tell you.

For my car and my driving style when I was running 225f /245r hoosiers and the comptech fsb on full stiff with -1.6* f and -2.5* r camber with 1/4 toe in total in the rear, (breath) I ran full stiff in the rear and full stiff in the front on bumpy-ish asphalt.

 

Understood. How about helping me understand the different handling characteristics of having the front/rear on soft/stiff?

 

OK, well the S is kinda weird in one aspect from the regular shock tuning info that you can find anywhere (the latest GRM for example).

The rears can use a lot of rebound damnpening to settle transitioning from side to side like in a slalom. One would think that this may cause looseness as the rear will be more resistant to roll and that would load the outside tire. In reality the rear of our car hates quick inputs which cause the suspension to go through it's range of motion. This motion causes drama and slow transition capability.

Now, I have no idea what your spring rates are like so this may not even apply.

You really should just read some books and hit a test and tune. Check your local region as most will have test and tunes specifically designed for dialing in your suspension.

Also, I personally would not drive daily on a suspension that was tuned for max auto-x performance. I soften my dampening after events because it's just too annoying otherwise.

 

^ Thanks for your inputs.