"Sport" mode throttle mapping observation
#1
Instructor
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I understand what the sport button does (or at least I think I do) regarding throttle mapping- it essentially moves the pedal travel vs. throttle response curve forward.
On my M5 when I maintain the gas pedal in a constant position and press the sport button I feel a surge of gas and resulting acceleration- exactly what I expect. When I do the same on my 997- nothing. It is exactly the same as before I pressed the button. Why?
On my M5 when I maintain the gas pedal in a constant position and press the sport button I feel a surge of gas and resulting acceleration- exactly what I expect. When I do the same on my 997- nothing. It is exactly the same as before I pressed the button. Why?
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#2
Rennlist Member
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I can feel a slow down in rate of acceleration when I de-activate Sports Chrono on my car, holding all things equal.
#3
Three Wheelin'
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Originally Posted by 997 Owner's Manual
Sport Mode
The electronic accelerator pedal reacts
sooner, and the engine is more responsive to
throttle inputs. When Sport mode is switched
on, this function is activated only after the
driver has floored the accelerator pedal or
released it briefly.
The electronic accelerator pedal reacts
sooner, and the engine is more responsive to
throttle inputs. When Sport mode is switched
on, this function is activated only after the
driver has floored the accelerator pedal or
released it briefly.
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Last edited by stevepow; 10-14-2009 at 04:43 AM.
#5
Instructor
Thread Starter
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Originally Posted by 997 Owner's Manual
Sport Mode
The electronic accelerator pedal reacts
sooner, and the engine is more responsive to
throttle inputs. When Sport mode is switched
on, this function is activated only after the
driver has floored the accelerator pedal or
released it briefly.
Sport Mode
The electronic accelerator pedal reacts
sooner, and the engine is more responsive to
throttle inputs. When Sport mode is switched
on, this function is activated only after the
driver has floored the accelerator pedal or
released it briefly.
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#6
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It's just software. They can program in any logic they want. Maybe they decided not to have it kick like my E39 M5 did. Instead, the change in mapping is more subtle.
On my Cayenne, if I'm moving, the throttle map change is not instantaneous.
On my Cayenne, if I'm moving, the throttle map change is not instantaneous.
#7
Nordschleife Master
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#8
Poseur
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As a test. have sport engaged, and select cruise control to govern your speed. once established on cruise, de-select the sport. See what happens. (nothing). The car maintains the speed needed, without 'moving' the pedal. It proves the electronics are governing the function.
#9
Poseur
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As a test. have sport engaged, and select cruise control to govern your speed. Once established on cruise, de-select the sport. See what happens. (nothing). The car maintains the speed needed, without 'moving' the pedal. It proves the electronics are governing the function.
#10
Instructor
Thread Starter
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As a test. have sport engaged, and select cruise control to govern your speed. Once established on cruise, de-select the sport. See what happens. (nothing). The car maintains the speed needed, without 'moving' the pedal. It proves the electronics are governing the function.
#11
Race Director
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All sport mode does for the throttle is re-map it to a 1:1 ratio. There is no power gain by doing this.
#12
Race Director
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All sport mode does for the throttle is re-map it to a 1:1 ratio. There is no power gain by doing this.
#13
Poseur
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Also, the Sports mode causes you to have a much sharper cutoff of the throttle RPM limiter than the usual one. (Probably a better chance of adding to your numbers in the engine log).
#14
Three Wheelin'
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I don't know why these buttons are not persistent. Especially on the e39 M5 as Sport also gives a much better steering feel. I could never understand buying an M5 for non-sport driving. However, my dog would get sick if I drove in Sport - the car reacted too fast for him. He seems perfectly fine with Sport in the 911.
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