Okay, thanks NoCones, I guess I've been told! If anyone challenged me I'd point out that the car has two (100% OEM) cats, they perform their function perfectly, and the car passes our state's rigorous emissions easily.
But you know what, it's all pretty academic because frankly I don't have the patience to sit around all day, at least the way it is in our area, at an SCCA event for 3 runs/day, when I can go to a
PCA or BMWCCA event and get 8. The later PAX non-BMWs on the SCCA system and certainly don't go around counting cats...if the car has cats and passes emissions it's cool. And at
PCA events the system is 100% legal hands down in production classes.
Regarding
PSM, I assume that's the PCar traction control system? Oh yeah, definitely off autocrossing. I typically recommend students keep it on at the track for their first couple of days, and monitor how often the light flashes on. If it's lighting up like a Christmas tree all the time, might want to do a few more days with it on. If it only comes on from time to time, the brave may want to start experimenting with it off at the track. But autocrossing? No way, off from day one. This is THE place to spin. Get it out of your system now. It gets a LOT more expensive after this!
Finally, Jamazz...please note that the R888s, great tires as they may be, are "r" compounds and will knock you out of the "strictly stock" class in
PCA. You'll suddenly be in "Production" where folks will have lots of suspension mods that could be discouraging to compete against. And, while I love the RA1/R888 tire as a durable track tire, it's not a great autocross tire by any means...it takes too long to heat up vs. a Kuhmo 710 or Hoosier A series. If you want to go with a Falken Azenis or similar you could skip the roof rack/trailer route and just drive to and from events no problem, and stay in strictly stock. If it's a long drive to events, just go easy on the shaving.
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PSM - Porsche Stability Management
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While it can’t overcome the laws of physics, the revolutionary Porsche Stability Management (PSM) system does lend an added degree of balance and control to the Cayman’s mid-engine driving dynamics, inspiring surefooted confidence in corners and extreme situations.
A standard feature on the Cayman and Cayman S, PSM continuously monitors steering input, road speed, yaw velocity and lateral acceleration to calculate the actual direction of travel. If the car begins to steer off line, PSM instantly intervenes with precision brake inputs on individual wheels to help bring the car back onto the driver’s intended path.
If braking alone isn’t enough to correct the vehicle’s cornering line, PSM then calls on the Cayman’s engine management system, adjusting engine output as needed to help stabilize handling. PSM can also compensate in an instant for mid-corner changes in load resulting from deceleration or braking. When Sport mode is selected with the optional Sport Chrono Package, PSM’s threshold for intervention is raised, allowing for greater driver involvement. If you prefer driving without automatic PSM assistance, the system can be set to standby at any time. In this case, it will only intervene under heavy braking, where both front wheels exceed the ABS threshold.
For all of its technical ability, PSM goes virtually unnoticed in everyday driving situations, preserving the Cayman’s natural agility. |
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