What are people's thoughts on PDCC? Do you think it will increase lateral grip? Has any publication compared the Cayenne back to back to see if it does? Hopefully someone will do both lateral grip and slalom testing back to back.

 

Go to YouTube and enter PDCC slalom.

 

For sure.... I passed on it when ordering 991 S..... How much roll can there be in a 911 to begin with.....?

 

I have PDCC on my '08 Cayenne GTS and while I can't say for sure if lateral grip is increased, I certainly think it is. Given that my house-weight truck doesn't lean at all in corners I'd have to think allot more tire stays on the road because of that, subsequently increasing grip. I just love PDCC and in fact, I traded in a month-old Cayenne without PDCC just to get one with it! I'm just amazed at how flat it stays in corners and that's a great feeling! Well, that's my $.02 anyway. I'm interested in hearing other, more technical responses as well...

 

Whoa! Those videos are pretty amazing. The one with PDCC looks so calm and motionless. The one without PDCC looks very jerky and unsettled. Great video on the benefits. Thanks.

 

991S is 4 seconds faster on the Nürburgring with PDCC, enuff said.

 

I've had it on Cayennes and Panameras and definitely could tell the difference compared to Cayennes I had without it and loaner vehicles when mine were in for service.

911's that I have had have not needed it but I can see why they now offer it. If they want to ease up the stiffness of the ride (like you get with a 997) they would recalibrate the springs to a more compliant resistance. This would introduce more body roll. This would be easy to counter with the proven (both in the Cayenne and Panamera) technology of PDCC. So you get both: more supple ride and flat cornering. And I understand the PDCC in the 991 is both lighter and simpler than the one in the bigger cars and a generation more advanced. I ordered it on mine.

It looks like a lot of the technology was proven on the Panamera before being used on the 991.

 

PDCC is one of the new options that I think it most noteworthy on the 991 (Carrera models), along with PTV and Dynamic Engine Mounts.

 

It is clear PDCC makes a big difference on bigger vehicles like cayenne or panamera. Whether the cost is justified on a 991 is questionable. I don't think it is necessary for city driving with a 991. Perhaps for track use and increasing lap time it is handy. Reviews seem to suggest it is one of those things that takes the fun out of driving a 991 and takes it closer towards numbness as does the electric steering. Sedan lovers may appreciate it, but those who want a responsive sports car that provides feedback may not.

 

On a somewhat related note, the Cayman R has a traditional passive suspension, and PASM isn't even an option as with the Cayman S (and 911). I like what PASM does, but in a pure sports car I prefer the more natural feel of the passive suspension (which also provides a comfortable ride, BTW). For me, enjoyment from an interactive and communicative car is way more important than lap times.

 

The PDCC is most important in the Cayenne, other than that it is not that important, but off course makes the car handle a little better again, but you can usually stiffen the chassis with the sport button anyway.

I have a PTT, so I cant speak for the 991, but with the PDCC came the LSD, and nowadays it has PTV included. So I only took the PDCC to get the LSD. I am not sure if in the 991 it is the same that the two are packed together, but I think PTV is the most crucial for everyday roadholding.

SOmeone said the PDCC 911 was 4 s faster on the Nurburgring, but I am pretty sure it was pecause of PTV, not PDCC.

 

Given that I'm not a tracker, I don't care if PDCC makes my vehicle trim seconds off of my "here to there" time. I wanted PDCC purely for the feel of the flat cornering. In a vehicle as big, heavy, and tall as a Cayenne, for me it simply increases my driving pleasure whether I'm driving a bit on the spirited side or just tooling around. I also think that it increases stability on the highway as I like the flat, uneventful lane changing it provides as well. I drove a BMW 750iL (early 2000's model) with a similar setup and I remember that feeling being just as amazing, if not even more so given the size of that car. In summary, I suppose what I'm saying is that I enjoy performance mods for what they provide in every day and somewhat spirited driving as that's the way I drive 99% of the time. For that rare occasion where I'm driving at 7 or 8/10ths for a few seconds, it's nice to have the wonderful performance engineering as well. PDCC is WAY up there on my must have option list...

 

Also this subject has been extensively discussed here:

https://www.6speedonline.com/forums/...miss-pdcc.html

 

There are other things that come with PDCC you might be interested in. From the Porsche website:

Porsche Dynamic Chassis Control (PDCC)
with PASM sport suspension

Active chassis control system reduces body roll in corners for increased agility, driving performance and comfort on uneven road surfaces, combined with an electronically controlled damper system with 2 manually selectable settings (“Standard” and “Sport”) with a reduced ride height of 0.39 inches (10 mm) from the standard Carrera S suspension

Includes aerodynamically adapted front spoiler lip and further extension of automatically deploying rear spoiler for further lift reduction