PDK - Sport Plus/Chrono in manual mode - SURPRISE DOWNSHIFT !!!
09-13-2012, 04:32 PM
#16
Race Car
I am still on the learning curve of this techno marvel and with only 2800 km on the odo, just starting to explore the aggressive side. Such a different beast than the now departed '99 996 with MT.
This exploring of the 991S 's Mr Hyde side has suddenly turned all the other drivers on the road into grandma's!
This exploring of the 991S 's Mr Hyde side has suddenly turned all the other drivers on the road into grandma's!
09-14-2012, 04:56 PM
#17
Rennlist Member
I wish the kickdown was disengaged when in manual mode. I have been surprised a few times as well.
09-20-2012, 05:02 AM
#18
Burning Brakes
Not all the time, just during very heavy spirited moments. Anyway..hehe. Car is amazing. After two hours of very dedicated shiftwork with the manual, I felt very connected and everything was fluid, no jerkiness..this car is taking me some time to become completely smooth with the manual transmission, more than others I have driven in the past. I don't know..for me this is a lot of fun..I will not master this automobile overnight even for simple spirited personal driving..it is something that will need to be worked on and grown with. These cars are truly amazing...whew.
09-20-2012, 08:30 AM
#19
Burning Brakes
+1 I feel as if I learn something new every day about this car in how it handles, accelerates and brakes.
09-20-2012, 09:46 AM
#20
My old 996 tiptronic definitely didn't do this in manual mode. If you were lugging the motor in 5th and floored it, you went - nowhere. Back then I thought I would have preferred the automatic kickdown worked.
I realize some are concerned about getting the smoothest power delivery at certain times, but if you're flooring the accelerator you want maximum power, and if the car knows it has more to give in a lower gear, why not downshift?
I realize some are concerned about getting the smoothest power delivery at certain times, but if you're flooring the accelerator you want maximum power, and if the car knows it has more to give in a lower gear, why not downshift?
09-20-2012, 01:30 PM
#21
Rennlist Member
Thread Starter
My old 996 tiptronic definitely didn't do this in manual mode. If you were lugging the motor in 5th and floored it, you went - nowhere. Back then I thought I would have preferred the automatic kickdown worked.
I realize some are concerned about getting the smoothest power delivery at certain times, but if you're flooring the accelerator you want maximum power, and if the car knows it has more to give in a lower gear, why not downshift?
I realize some are concerned about getting the smoothest power delivery at certain times, but if you're flooring the accelerator you want maximum power, and if the car knows it has more to give in a lower gear, why not downshift?
Questions to ask Porsche mechanic. Can the kickdown button be disengaged through programming in Sport Plus? Can the button be physically removed from the pedal assembly or simply unplugged?
09-20-2012, 03:12 PM
#22
Race Car
You are correct if the car can provide better delivery why not downshift when flooring. The challenge is when you are very aggressive it is much more difficult to floor it without hitting the kickdown button. You are never quit sure where the max pedal is. This is why manual mode should be completely manual mode, in particular during Sport Plus engagement.
Questions to ask Porsche mechanic. Can the kickdown button be disengaged through programming in Sport Plus? Can the button be physically removed from the pedal assembly or simply unplugged?
Questions to ask Porsche mechanic. Can the kickdown button be disengaged through programming in Sport Plus? Can the button be physically removed from the pedal assembly or simply unplugged?
09-20-2012, 03:35 PM
#23
Drifting
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...After two hours of very dedicated shiftwork with the manual, I felt very connected and everything was fluid, no jerkiness..this car is taking me some time to become completely smooth with the manual transmission, more than others I have driven in the past. I don't know...
I had the same problem and replaced the factory spring with a much lighter one. My clutch work smoothed out immediately.
Just a thought if it bothers you.
05-26-2014, 05:19 PM
#25
Race Car
05-26-2014, 05:34 PM
#26
Track Day
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Hi chuckbdc
Thank you for your prompt reply. If the technical solution becomes available it would be great to know about it. So far I have tried to stay away from flooring the pedal, but sometimes the adrenaline kicks in.
Thank you for your prompt reply. If the technical solution becomes available it would be great to know about it. So far I have tried to stay away from flooring the pedal, but sometimes the adrenaline kicks in.
05-26-2014, 06:02 PM
#27
05-26-2014, 06:20 PM
#28
Race Car
Now wait just a minute there, chuck. This is sounding suspiciously close to advocating the development of real driving skills. If there's one thing we all know, its that the car is supposed to do just what we want it to do, regardless of how contrary our inputs may be. Better Grey Poupon should spurt out the cup holders for Jives to spread on our canapés than we learn to be smooth and deliberate with our $100k+ Porsches. Sheesh!
05-26-2014, 08:43 PM
#30
Rennlist Member
I'm not too knowledgeable about these matters but aren't you supposed to drive like there's an egg between your foot and the gas pedal?
You can't disable the kickdown switch without using something like a Sprint Booster to intercept the CAN/LIN bus traffic and modify it on the fly, because it's not a real button, just a plunger with a stiff buckling spring that impedes the last 10% or so of pedal travel:
What you could do is attach an object to build up the flat plastic surface that determines the total extent of pedal travel. If you raise that surface another 6 mm, the pedal won't be able to act on the plunger. Assuming that the last 6 mm of travel is what triggers a kickdown request, that should prevent it from happening.
Needless to say, tinkering with the accelerator pedal assembly is done at your own (possibly substantial) risk.
You can't disable the kickdown switch without using something like a Sprint Booster to intercept the CAN/LIN bus traffic and modify it on the fly, because it's not a real button, just a plunger with a stiff buckling spring that impedes the last 10% or so of pedal travel:
What you could do is attach an object to build up the flat plastic surface that determines the total extent of pedal travel. If you raise that surface another 6 mm, the pedal won't be able to act on the plunger. Assuming that the last 6 mm of travel is what triggers a kickdown request, that should prevent it from happening.
Needless to say, tinkering with the accelerator pedal assembly is done at your own (possibly substantial) risk.