Let me turn in to Slicky Rick for a second ... any way to eliminate the kick down feature for PDK cars? I'm assuming the throttle is wide open at the point you feel the kick down trip, but would be great to floor it without the gearbox kicking down. Easier for short shifting.

 

Not sure this is what you are after, but try Sports Plus. Since upshifts only occur at redline, you can keep the gear of choice slightly below redline and the when you "floor it" should not get a kick down. Running in PDK manual may even give you a boit more control.

 

Thanks for your input. I drive exclusively in manual, and most typically in Sport. I haven't experimented with Sport Plus with short shifting. I just assumed it would be the same. Ultimately what I'm after is to never engage kick down, no matter how liberal I am with the throttle. Would be ideal to me in Sport as well as Sport Plus, if that's the case.

 

OK, you forced me to go outside and bring in the operators manual. Apparently kickdown operates the same in D or M. So the only way to avoid kickdown is to not depress the throttle beyond the full-throttle point (their words). Interestingly, the only way PDK upshifts for you in M is when you are in the kickdown throttle position, in other words, to the absolute floor. This I was unaware of as I inherently shift myself at about redline from feel.

Still I'd prefer no kickdown in any situation. I don't want the gearbox to shift for me. Too bad for me then, apparently

 

I can confirm that in manual mode, under full throttle, it does up shift for you. BUT, if just lees than full throttle, it hits the rev limiter. I inadvertently discovered this at the track. Maybe it is assuming if you are full throttle, you were just too slow to hit that button before it banged into redline, so it does it for you. I wish we could customize how we wanted our cars to up shift . How hard could it be to give you custom modes. Maybe I want auto up shift at 7200, sport plus throttle response, manual downshifts, sport Pasm chosen when I hit my Memory 1. It would be cool!,

 

I would think you would be better off in Normal mode, manual, for short shifting. That is when the car wants you to get good gas mileage.

 

Copy all. Typically I use short shifting in tighter bends so you can apply more liberal throttle earlier and without spinning up the tires and kicking out the rear. I'm not looking for economy . In this situation, kickdown is not an issue. Sometimes in mid gears you want to apply lots of power and if it kicked-down unexpectedly it's annoying. Guess I'll just need to pay more attention to where full throttle ends and kickdown begins. Just coming from a 997S 6-speed, never had to think about it.

 

I have a week-old 991 Turbo S, and just want to confirm that when you get to the point of resistance in throttle travel where kick down engages, you have reached full throttle. Is this correct? In other words, you don't have to push past the kick down point to get full throttle?

This is my first non-manual in my life and I like the PDK but need to understand it a little better.

Thanks for any input.

 

If you are not already a member of Renntech.org, you may want to consider joining to be able to download the "Service Information Technik" for the 991 Turbo that is posted here: http://www.renntech.org/forums/files...bo-turbo-spdf/

I have an actual hardcopy of this publication for my 2009 and it goes to great lengths (8 pages) describing the shift strategy of the 2009 PDK. The info for the PDK in that above-referenced Turbo book doesn't seem as complete, and I don't immediately see this level of a description in your book, so you might want to look at the PDK pages in the 2009 version here: http://www.renntech.org/forums/files...arrera-models/

Others wondering about PDK shifting behaviors will probably find that last one very interesting too. I'd offer to post the photos of those pages from my book to make it easier but that is verboten here. BTW, I bought my copy on eBay, it's an interesting read about many things about our cars (177 pages). It's called the "Service Information, 2009 Technik Introduction". The oddest thing was the very last entry describing the optional TV tuner/display for the PCM, who knew? I guess that must be unavailable in the US. Lot's of tech specifics overall... I learned a lot.

 

Hi all,

I am racing driver and during the last seven years I have participated in all racetrack events of the Porsche Club of Brazil (and others private track days), always driving Porsches with manual gearbox.

Recently I bought a 997.2 Carrera S PDK to drive in manual mode, but I did not like the PDK system shifiting gears up automatically, especially in the middle of corners, leaving the car without traction.

With a simple change in the accelerador control the car is now improved for track days (only upshifting). I removed the original kickdown switch and installed a fixed hand made part, with exactly the same measures of original piece.

The electronic pedal remains the full throttle, but stops before sending the signal to upshifiting. Now I can control the gearbox to use all 8K rpm of engine, using the paddle shifters steering wheel.

The system is similar the new 991 GT3 PDK-S without kickdown, and can to be installed in any model Porsche PDK.

I hope you enjoy.