Hopefully someone has had this experience and can help me. Earlier today I was at Willow Springs doing NASA's HPDE class. On the 3rd session we were going at it pretty hard and as I was coming off the track I noticed the clutch felt funny. Once I was off the track I realized I had almost no pressure on the pedal until just before it hit the floor. Once I stopped and let the car cool for a few I got out and pushed it with my hand to see if perhaps I was imagining things. I wasn't and it even stuck a few times. I had to run to the de brief so I left the car. By the time I returned (maybe 20 min) the clutch had returned to normal and I was able to run the last session. At the end of that session it was a little soft but nothing like #3. Now it's back to normal. Did I heat up the fluid? If so, is there a better choice than the stock stuff? Other than hat, what a great day. This car is incredible. I can see I have a lot to learn but figure that's half the fun!

 

Try bleeding the clutch system. Since you do not bother to state your S's age, I don't kinow if you have an AP1 or 2. If you own a 2, get rid of the clutch delay valve.

 

Sorry, 2006 AP2. Thanks, I hadn't thought of that

 

CDV =

 

I experienced the same thing on the track a few years back. I'm 99% sure you need to bleed your system.

Good luck!