What is PDCC?
Race Car
Joined: Mar 2013
Posts: 4,424
Likes: 737
From: Northern Virginia
to each their own. I had two identical 991.1s cars. Literally the only difference was pdcc, both had spasm.
noticeable difference in ride quality and stability at least on the street. Both handled great but the pdcc to me, is a noticeable improvement. Cornering feels otherworldly flat. Maybe some more talented driver (moderate de experience with average to slightly below average driving talent) dislike it due to it perhaps feeling a little unnatural, but it feels right to me.
first real track day with the pdcc car Friday.
As kennypowers says, it offers flat cornering and improved ride quality. Like having your cake and eating it!
Instructor
Joined: Nov 2014
Posts: 213
Likes: 2
From: SF Bay Area
The next gen PDCC is likely to be electric, thus simpler and lighter.
It might then make its way to the GT models. Witness the RWS system, which being electric, is used in the GT's.
Race Car
Joined: Jun 2012
Posts: 3,628
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From: Maryland USA
If I recall correctly, when the 991 S was introduced, Porsche claimed it was 13 seconds faster around the 'Ring than S' without these options. They attributed half the gain due to PDCC, half due to SPASM (lower and stiffer rate springs). Less roll provided better tire contact patches for superior cornering traction and lower CG provided additional mass control and aero.
That's a lot of improvement and it may not matter for those not planning to conquer the Nurburgring. But what each gives individually or together is immediate and obvious whenever a car with them is pushed even mildly.
Porsches GT series achieve the body control with more conventional anti roll bars and stiffer springs- with great track performances results at the cost of street ride comfort and noise control.
They also don't use turbos (yet), is why they get outrun on longish courses by more comfortable, quieter Turbo Ss you use for grocery shopping. Something to keep in mind.
That's a lot of improvement and it may not matter for those not planning to conquer the Nurburgring. But what each gives individually or together is immediate and obvious whenever a car with them is pushed even mildly.
Porsches GT series achieve the body control with more conventional anti roll bars and stiffer springs- with great track performances results at the cost of street ride comfort and noise control.
They also don't use turbos (yet), is why they get outrun on longish courses by more comfortable, quieter Turbo Ss you use for grocery shopping. Something to keep in mind.
Last edited by chuckbdc; Jun 28, 2018 at 08:19 AM. Reason: correction of fact
Pro
Joined: Jan 2006
Posts: 515
Likes: 204
The hydraulic PDCC version currently used in the Carreras and Turbos is engineeringly compromised: it's too complex and heavy.
The next gen PDCC is likely to be electric, thus simpler and lighter.
It might then make its way to the GT models. Witness the RWS system, which being electric, is used in the GT's.
The next gen PDCC is likely to be electric, thus simpler and lighter.
It might then make its way to the GT models. Witness the RWS system, which being electric, is used in the GT's.
RL Community Team
Rennlist Member
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Joined: Sep 2005
Posts: 18,831
Likes: 14,772
The hydraulic PDCC version currently used in the Carreras and Turbos is engineeringly compromised: it's too complex and heavy.
The next gen PDCC is likely to be electric, thus simpler and lighter.
It might then make its way to the GT models. Witness the RWS system, which being electric, is used in the GT's.
The next gen PDCC is likely to be electric, thus simpler and lighter.
It might then make its way to the GT models. Witness the RWS system, which being electric, is used in the GT's.
Advanced
Joined: Sep 2017
Posts: 66
Likes: 3
Is PDCC retrofittable on a 2016 991.1 GTS?
Anyone venture to guess (roughly) what this would cost for parts and installation?
- - -
UPDATE:
I just got off the phone with the Porsche dealer. The Service Dept. Manager said that unless Porsche offered a "kit" for this (for which they could install) - it would be a "no go" to put into my GTS. He checked, and... no kit available. So I guess that answers my question.
- - -
UPDATE:
I just got off the phone with the Porsche dealer. The Service Dept. Manager said that unless Porsche offered a "kit" for this (for which they could install) - it would be a "no go" to put into my GTS. He checked, and... no kit available. So I guess that answers my question.
Last edited by passion4audio; Jun 28, 2018 at 05:01 PM. Reason: additional information
RL Community Team
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As all of the GT models, as well as the 918, do not have the PDCC (either as standard equipment or as an option)
And I don't think the PDCC and PTV are really substitutes (either partially or wholly) for one another. The former allows for less body roll, the latter allows for better turn-in via a locking differential.
Drifting
Joined: Mar 2012
Posts: 2,452
Likes: 145
If I recall correctly, when the 991 S was introduced, Porsche claimed it was 13 seconds faster around the 'Ring than S' without these options. They attributed half the gain due to PDCC, half due to SPASM (lower and stiffer rate springs). Less roll provided better tire contact patches for superior cornering traction and lower CG provided additional mass control and aero.
That's a lot of improvement and it may not matter for those not planning to conquer the Nurburgring. But what each gives individually or together is immediate and obvious whenever a car with them is pushed even mildly.
Porsches GT series achieve the body control with more conventional anti roll bars and stiffer springs- with great track performances results at the cost of street ride comfort and noise control.
They also don't use turbos (yet), is why they get outrun on longish courses by more comfortable, quieter Turbo Ss you use for grocery shopping. Something to keep in mind.
That's a lot of improvement and it may not matter for those not planning to conquer the Nurburgring. But what each gives individually or together is immediate and obvious whenever a car with them is pushed even mildly.
Porsches GT series achieve the body control with more conventional anti roll bars and stiffer springs- with great track performances results at the cost of street ride comfort and noise control.
They also don't use turbos (yet), is why they get outrun on longish courses by more comfortable, quieter Turbo Ss you use for grocery shopping. Something to keep in mind.
I'm guessing for Porsche it isn't worth the trade-off.
As all of the GT models, as well as the 918, do not have the PDCC (either as standard equipment or as an option)
And I don't think the PDCC and PTV are really substitutes (either partially or wholly) for one another. The former allows for less body roll, the latter allows for better turn-in via a locking differential.
As all of the GT models, as well as the 918, do not have the PDCC (either as standard equipment or as an option)
And I don't think the PDCC and PTV are really substitutes (either partially or wholly) for one another. The former allows for less body roll, the latter allows for better turn-in via a locking differential.
