I've got a question for folks who go to multiple tracks. I took my 996TT to Thunderhill Raceway for the first time and had a blast. However, I did notice that the PSM seemed to kick in more at Thunderhill than I've experienced at either Sonoma or Laguna Seca. In fact, I've never noticed the PSM kicking in at those other tracks.

Has anyone else noticed this at Thunderhill? I'm thinking it may have to do with the elevation changes and the several turns where there are hills and off-cambered slopes. Unfortunately, it's not apples-to-apples comparisons since I am running a new set of MPSS instead of MPS2 tires.

Here are some of my favorite pictures from the day -- the lighting and colors are pretty good in these photos:

 

I've never been to Thunderhill but yes, PSM does kick in on certain track situations. I've noticed while cresting a hill in a turn and while accelerating out of slow turns when PSM goes into a traction control mode. Depending on your skill level,, you might try turning it off.

 

I posted the same on the other thread...."This is very true and more with grippier tires, I had my guy disconnect fuses for all PSM and ABS and ran slicks at our local track, wow I can't believe how much the systems hold back and control the car. I had him install separate switches for ABS and PSM so when I'm at certain tracks I can turn off and control one or both. It is a lot of fun. Did you try turning off your PSM button to see how different it would handle? Not completely removing it but little different for the taste..."

 

PSM activation on the car you want to drive home from the track is trying to tell you something.

I am a long term Porsche HPDE instructor and coach. Another coach told me this week "PSM stands for: Please Save Me"

Leave the PSM on and learn to drive more smoothly. The time will come that PSM will save you.

 

+1. The smoother you are, the less PSM will kick in. If you're getting a lot of interference, odds are there is something in your driving style that can use improvement.

 

Try trail braking into a bumpy turn (example turn 17 @ Sebring) no matter how smooth you drive, trail braking the abs/psm grab the car and slow it way down, yes it is great for learning a new track or beginning but as you change to grippier tires and push the car harder it becomes more of a hinderance. Just my .02

 

I don't disagree with you - the nannies will ultimately slow an advanced driver. I should qualify my statement further and say until you are confident in your car control, and have advanced to more senior levels at track days, PSE should stay on. Once you've progressed, PSM can become optional - but really depends on skill level.