ajmza

I am building a 992 C4S and trying to understand the PASM (Lowered 10mm) option.

Does PASM make the car 10mm lower than a standard car all the time, or only when it is in the Sport setting?
Likewise, is the PASM ride as comfortable as a standard C4S when Sport setting is off or does it make for a permanently stiffer ride?

detansinn

SPASM (Sport PASM aka Sport Chassis) is always lower and is a sportier ride than the standard PASM. Every 911 comes with PASM.

If you want to drive a 911 like it should be driven, I would spec SPASM. If your idea of ride quality has been shaped by luxury cars versus sports cars, skip it.

BondJ

PASM only adjusts bump/rebound of the front & rear dampers NOT the hight. It remains 10mm lower in both standard and sport mode. IMO the PASM is slightly softer in standard mode and harder in sport mode than the static, non PASM suspension.

jfb992

You may want to check out this string. There is a table with the spring rates for the PASM vs. PASM Sport.

https://rennlist.com/forums/992/1342...pension-2.html

The PASM Sport is lowered 10 mm all the time and is definitely stiffer than standard PASM. The dampening is stiffened in Sport Plus in PASM Sport by adjustment of shock absorbers. I have the PASM Sport in my 2023 C2S and it is fine for driving around town and long highway trips. I do have front axle lift because I live in a place with a lot of steep entries and exits to drives and even roads.

rasetsu

PASM is Porsche acronym for active dampers. Every 911 has it. Active dampers will make the car ride more comfortably when set in comfort mode and firmer when set in sport mode.

Sport PASM option lowers the car 10mm all the time via shorter springs. Changing PASM mode does not change spring height. 10mm loweing makes very little to no difference in ride comfort but it does reduce the fender to wheel gap for a visually sportier look.
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ipse dixit

​​​​​​​This question (and answer) REALLY should be a sticky.

aggie57

There is no such thing as ‘non PASM suspension’ in a 992. All 992’s have it; you’re getting confused between standard and sports suspension.

BondJ

Yes, base 992s now have PASM.

-10mm remains -10mm regardless of mode 👌

PSPorsche

I think the confusion arises because the Configurator refers to the option as PASM Sport Suspension (Lowered 10mm), and people (myself included) simply shorten this to PASM when talking about it.

I have see the term SPASM used. Is this the correct way to refer to the PASM Sport Suspension (Lowered 10mm) option?

detansinn

Incorrect. You cannot spec SPASM/PASM sport on a base Carrera.

AlterZgo

Yes, most of us on the forum refer to the standard height cars having PASM and the 10mm lower cars having SPASM (i.e. sport PASM).

gthal

-10mm is only SPASM and not PASM on the base 992

F8Driver

The lowered suspension is lower full time. The Standard PASM is quite stiff (and hardly Luxury car soft), the SPASM (lowered) is notably stiffer. The GTS standard SPASM is stiffer still. As one progresses from PASM to SPASM to GTS SPASM spring rates go up and handling response is improved at the expense of ride quality. To get a feel for the effects, you really need to drive all three over similar roads to find your personal sweet spot.

CanAutM3

Just to clarify, you might have misread the post. Base Carrera do come standard with PASM while the PASM Sport (SPASM) is not offered as an option, as you stated earlier. Ride height does not change with the dash selected S-PASM mode.

timothymoffat

There are lots of vague and/or incorrect references to PASM and specifically Sport PASM on youtube "reviews".

PRIOR to PASM becoming standard on 911s there were three different ride heights:
1. Base suspension with passive shocks: baseline.
2. PASM: adaptive shocks and shorter springs (-10mm).
3. Sport PASM: adaptive shocks with more "sporty"/stiff tune and shorter/stiffer springs (-20mm).

Since PASM has become standard on the base Carrera, we only have 2 & 3, with 2 now being the baseline. A LOT of reviews do not differentiate between PASM and Sport PASM. A lot of Carrera T reviews for example refer to the car as having PASM as if it were something different from the base model. It IS different but not merely by inclusion. It is different because it is the stiffer Sport PASM (optional on the S, standard on GTS though the GTS gets some additional differences such as helper springs from the Turbo models).