PDCC: yes or no?
Race Car
Joined: Jun 2012
Posts: 4,522
Likes: 63
Okay, my bad. And maybe this is another one, but I thought I remembered reading somewhere that PDCC cars also have a different power steering setup. They use the old always-on hydraulics where the cars without PDCC get the newer on-demand system.... or something like that....?
Race Car
Joined: Jun 2012
Posts: 3,629
Likes: 346
From: Maryland USA
Okay, my bad. And maybe this is another one, but I thought I remembered reading somewhere that PDCC cars also have a different power steering setup. They use the old always-on hydraulics where the cars without PDCC get the newer on-demand system.... or something like that....?
Race Car
Joined: Jun 2012
Posts: 4,522
Likes: 63
Okay, so I tried posting this on the Autocross forum too but there's like one guy there.... which was, uh, me.... so... has anyone tried Autocrossing PDCC? Does it work with really fast transitions like slaloms? And yes I do plan to autox this car a lot.
Rennlist Member
Joined: Dec 2009
Posts: 1,429
Likes: 15
From: Southern California
Oh, and I should say that dynamic roll response is crucial to the autocross venue.
Gary
Instructor
Joined: Jul 2012
Posts: 171
Likes: 0
From: Devon, UK
Yes to PDCC - love it!
I was able to compare my PASM PDCC 991 with a similarly equipped non-PDCC 991 loaner which i drove for several days while my PDK software crash was fixed. Driving on fast country roads (not track) the PDCC car is extremely smooth and more comfortable over bumpy roads. It's stiff when you want it to be and compliant when you don't and it feels grippy as hell!
If nothing else I would order it purely for the additional comfort in daily driving. Also I am really looking forward to exploring its limits on track. The whole long-term maintenance thing is a non-issue to me. The 991 is full of technological marvels so why wold one worry about PDCC going wrong more than any other system on the car? As suggested in a previous post, the advanced technology is something you buy into with a 991. If you have negative thoughts about this from the start then maybe its not the car for you!
I was able to compare my PASM PDCC 991 with a similarly equipped non-PDCC 991 loaner which i drove for several days while my PDK software crash was fixed. Driving on fast country roads (not track) the PDCC car is extremely smooth and more comfortable over bumpy roads. It's stiff when you want it to be and compliant when you don't and it feels grippy as hell!
If nothing else I would order it purely for the additional comfort in daily driving. Also I am really looking forward to exploring its limits on track. The whole long-term maintenance thing is a non-issue to me. The 991 is full of technological marvels so why wold one worry about PDCC going wrong more than any other system on the car? As suggested in a previous post, the advanced technology is something you buy into with a 991. If you have negative thoughts about this from the start then maybe its not the car for you!
Track Day
Joined: Dec 2012
Posts: 16
Likes: 0
From: Canada, Quebec
Yes to PDCC - love it!
The whole long-term maintenance thing is a non-issue to me. The 991 is full of technological marvels so why wold one worry about PDCC going wrong more than any other system on the car? As suggested in a previous post, the advanced technology is something you buy into with a 991. If you have negative thoughts about this from the start then maybe its not the car for you!
The whole long-term maintenance thing is a non-issue to me. The 991 is full of technological marvels so why wold one worry about PDCC going wrong more than any other system on the car? As suggested in a previous post, the advanced technology is something you buy into with a 991. If you have negative thoughts about this from the start then maybe its not the car for you!
Three Wheelin'
Joined: Feb 2012
Posts: 1,458
Likes: 233
From: SF Bay Area
Okay, my bad. And maybe this is another one, but I thought I remembered reading somewhere that PDCC cars also have a different power steering setup. They use the old always-on hydraulics where the cars without PDCC get the newer on-demand system.... or something like that....?
Three Wheelin'
Joined: Feb 2012
Posts: 1,458
Likes: 233
From: SF Bay Area
My other observation was how much less understeer the 991 does compared to my 7.1 -- which is why I read the PDCC might increase understeer references with some amazement.
Can't wait for my first proper DE (the track in my avatar was fun fun fun, but now I need some instructions).
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Race Car
Joined: Jun 2012
Posts: 4,522
Likes: 63
I haven't done it myself, Chuck, but I can offer one technical observation. PDCC should increase the frequency of dynamic roll response. That is, the car will be able to go from full loading in one direction to full loading in the other more quickly than a car without PDCC. I can't guarantee that, because I've neither read the spec's on PDCC implementation nor driven one in anger, but it seems almost inevitable.
Oh, and I should say that dynamic roll response is crucial to the autocross venue.
Gary
Oh, and I should say that dynamic roll response is crucial to the autocross venue.
Gary
Race Car
Joined: Jun 2012
Posts: 3,629
Likes: 346
From: Maryland USA
Chuck, you appear to be coming to the same conclusion that Porsche did about PDCC. That is good, because the bottom line is that by better controlling roll rate it keeps tire contact patch in optimal position. Other things being equal, that will get around faster.
Race Car
Joined: Jun 2012
Posts: 3,629
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From: Maryland USA
Burning Brakes
Joined: Nov 2004
Posts: 957
Likes: 3
From: USA
In 2005, it was PASM and PSM. Sigh. People just need to give up and go see a doctor. 
http://youtu.be/85PcMJ9D8X0
http://youtu.be/85PcMJ9D8X0