I wonder what the weight difference between a 991s with no options and one with all options?

 

Impossible to say. Options don't always add weight. Example: PCCB. Options that do add weight, can add different amounts. Examples: three wheel options and two sunroof options, each with different weights. But even if you get all specific with your list there's still the problem of trying to determine the weight difference between the different seats, for example. How important is it to know how many ounces you're saving going with standard instead of full leather? My guess is the weight difference between the heaviest and lightest optioned cars is somewhere around a half of a tank of gas.

 

PDCC adds weight. Probably the most is the Burmester. Uses much heavier components thann base or bose.

 

Probably about the same. As you add options, your wallet gets progressively lighter, making up the difference!

 

In my research I came across this from the forum Rennteam 2.0 about the weight penalty of some of the options. Take it for what it's worth, but options do in fact add weight. The curb weight of a 991S with zero options is 3120 lbs. (Porsche North America) vs. 3300 lbs +/- of a nicely optioned car. (Motor Trend, Car & Driver etc..)


"Our weight measurements have gotten some attention around Stuttgart, so I received this breakdown of options weight that goes some way (but not all the way) in explaining the difference between the claimed 1415kg DIN and the 1530kg we measured with the first car we tested. These are figures communicated through the PR department:

PASM & PDCC: approx 24 kg
Sunroof: approx 15 kg
18-waysport seats: approx 10 kg (for the pair, delta vs the standard 4-wayseats, does not sound like much)
Soundpaket BOSE: approx 4 kg
Sport-Design wheels: approx 4 kg
Seat ventilation: approx 3 kg
Extinguisher: approx 3 kg (which our car(s) were not equippedwith)

Another 4.5kg go in the fact that the DIN norm specifies a 90%tank while we measure with a full tank, so that's 6.4L of excess(unleaded) liquid at 0.7 density. They did not mention PSE so I amnot sure whether any weight addition results from it, neither PCM."


....and then this regarding the specifics of PDCC:


"PDCC components are:

1 - an electronic control unit (in front of the car);
2 & 8- two valve blocks, one in front of the car and one in the rear;
3& 6 & 12 - one hydraulic pump with a hydraulic reservoir andone oil/water heat exchanger (all three in the rear of the car);
4& 7 - two special designed anti-roll bars (one front-axle bar andone rear-axle bar);
5 & 10 - four actuators, two per each axleor one per each corner of the car (instead of connecting link/suspension/stabiliser on vehicles without PDCC)
9 is the PASM switch. 11 is a T-piece. Also pipes, liquid, joints,etc.

Heavy system for a sport car if you ask me. I estimate about 20kg in parts and the heavier ones are in the rear."

 

It's really pretty significant when you consider the extremes.
Example:

a)C2S, 7 sp manual, few options, no sunroof
b) C4S, cabriolet, PDK, PDCC, etc.etc...

When you factor in extra AWD weight, extra cab. weight, extra PDK weight, and PDCC, etc.... it can potentially add up to 300 pounds of extra weight

 

I'm looking for the source but can't find it now. In all likelyhood it came from Rennteam 2.0, but the difference between the base audio system and the bose was about 7 lbs and another 6 lbs. for the burmester.

 

Found it on Rennteam 2.0
Base: 6.2 lbs.
Bose: 11.97 lbs.
Burm: 14.00 lbs.

So the difference in weight is marginal, however the difference in sq is not proportinate to the difference in weight.

 

i never knew PDCC is soo heavy...

 

Very good info, thanks! Is the 24kg for PASM + PDCC due to just PDCC addition to a PASM suspension? It seems it it since the baseline car is a C2S if I understand correctly?

 

Yes you are correct, the 991 S weighs 3120 lbs in base form. The sunroof and pdcc are two of the heaviest options.