Re: sport chrono and mlti fct steering wheel
Quote:
DavidS said:
Actually - The "sport" mode does a number of things.
If you are not into track days - You might never notice many of them.
The program is activated by the sports button in the centre console, varying the:
gas pedal control lines
engine speed limiter
dash-pot on the throttle butterfly
PSM (Porsche Stability Management)
PASM (Porsche Active Suspension Management) and Tiptronic S as required by the driver.
The E-gas control line is switched to a steeper configuration restricted in models equipped with Tiptronic S to the manual mode.
The throttle butterfly will respond even more quickly to movements of the gas pedal, and the driver will enjoy an even more spontaneous response from the engine.
Should the driver furthermore keep his foot on the gas pedal without shifting gears, the engine speed limiter in gears 1 -5 will intervene far more abruptly than in standard trim, meaning that the engine responds directly to the gas pedal up to the maximum speed limit.
Dash-pot response is less oriented to motoring comfort, the throttle butterfly closing faster whenever the driver takes his foot off the accelerator to provide an even more dynamic, racing-like driving experience.
The operation and intervention of Porsche Stability Management also changes in response to the sports button, providing greater agility and driving dynamics.
Accelerating out of a bend, for example, the car is even faster and more dynamic thanks to the higher anti-spin control threshold allowing more slip on the drive wheels when giving gas.
The system thus consciously accepts greater swerve action at the rear - particularly on slippery surfaces - without endangering driving safety.
The other PSM activation thresholds are likewise raised to a higher level allowing a bigger deviation between the actual and the desired movement of the vehicle before PSM cuts in.
The result, clearly, is greater agility when driving to the limit in lateral dynamics.
Raising the ABS intervention limits, in turn, the system allows the driver to apply the brakes with more neutral behaviour when entering a bend.
A further point is that PSM allows more drag momentum from the engine whenever the driver takes his foot off the gas pedal, ensuring a smoother load change for taking bends with a tighter angle and in more dynamic style.
And for even greater agility, all the driver has to do is switch off PSM with the sports mode active.
Porsche Active Suspension Management also switches automatically to the sports program with harder bumper control.
The car thus steers even more spontaneously into bends, body movements are significantly reduced, and road contact is improved accordingly.
With a "softer" suspension being advantageous on slippery surfaces such as wet or snowbound roads, on the other hand, the driver is able, pressing the PASM button, to set the car to its normal damper position even when the sports mode is active.
Wow! What he said.
That's impressive. I forgot totally about the rpm thing. I can feel there's a lot of differences but didn't know exactly why or what they all were.
"throttle butterfly closing faster whenever the driver takes his foot off the accelerator to provide an even more dynamic, racing-like driving experience."
That's a big part of the whole difference in feeling imo, it's not just the "spontaneous response from the engine." when you hit the gas, it's they way the car feels when you take your "foot off the accelerator" as well.
Appreciate the great info!
