I tried to get my CS dyno'd last week at a shop at Thunderhill. Unfortunately, the techs there seemed a bit clueless about the CS. In particular, they never had dyno'd a Porsche with the Tip before.
They were running a Dynojet. They were unable to get a reading, each time getting some type of error. During the first attempt, the car started surging, which I realized was the
PSM kicking in. We turned off the
PSM, but the car registered
PSM failure, and ABS failure on subsequent attempts. In addition, the gear selection light kept flashing between 4 and M. After several attempts, I put a stop to it, as they clearly did not know what to do.
The failure lights cleared after a restart and a few minutes of driving.
Q: Are there particular procedures for dyno'ing with the Tip, so the next place I go to I can make sure they do it right?
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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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Linear Mode
