Sport PASM Ride Height
#1
Rennlist Member
Thread Starter
Sport PASM Ride Height
With Sport PASM, the car is lowered 20mm. Is this drop fixed or dynamic. That is, is the ride height at the standard/non-PASM height and when you toggle Sport PASM on the console, the ride height drops? Or is the ride hide fixed, and when you toggle Sport PASM, only the dampers and anti-roll bars dynamically stiffen up?
#3
Drifting
Here's a GTS with PASM Sport (I checked the sticker.) Gives you an idea of the ride height of the shorter, stiffer springs. The car next to it is a base Carrera, but I don't know if it has PASM; not even sure if PASM is optional on 3.4s?
#4
Banned
This isn't an air suspension that lowers and raises the car. Valving on the shocks are electronically controlled for shorter travel over bumps in pasm mode. Springs are 20 mm lower than a stock 911 spring and 10 mm further lower than a pasm optioned car. Electronically controlled roll bars are part of a different option. Called pdcc.
#5
Race Car
This isn't an air suspension that lowers and raises the car. Valving on the shocks are electronically controlled for shorter travel over bumps in pasm mode. Springs are 20 mm lower than a stock 911 spring and 10 mm further lower than a pasm optioned car. Electronically controlled roll bars are part of a different option. Called pdcc.
#6
Banned
Compression and rebound are both affected. Distance is the byproduct of tighter valving. A shock travels less when the orifice in the shock becomes smaller. It takes more time for the gas or oil to travel to the opposite side of the valve. I should have make it more clear. Sorry
#7
Race Car
Compression and rebound are both affected. Distance is the byproduct of tighter valving. A shock travels less when the orifice in the shock becomes smaller. It takes more time for the gas or oil to travel to the opposite side of the valve. I should have make it more clear. Sorry
The speed of the action of rebounding against the spring deflection is varied by PASM. When it is more instantaneous due to a shorter path for fluid to move, it is more responsive and feels stiffer; when its slower due to a shorter path for fluid to move, it is less responsive and feels softer.
The big question is how Porsche missed minting a new P acronym for its air suspension technology!
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#8
Banned
We are likely agreeing. the key point is that the hydraulic processes inside of the shock do not affect the ride hight of the car.
The speed of the action of rebounding against the spring deflection is varied by PASM. When it is more instantaneous due to a shorter path for fluid to move, it is more responsive and feels stiffer; when its slower due to a shorter path for fluid to move, it is less responsive and feels softer.
#11
#13
Front Chin Spoiler W and W/O Sport Suspension
Hopefully someone can assist before I make a mistake I'll regret. I have a 2013 Carrera 911S with standard dual mode PASM, no Sport Suspension. However, I want the extended front spoiler that comes with the sport suspension, the tongue looking front spoiler. I have done exhaustive physical measuring and reading but still not 100% sure on this one. Can someone please offer a factual suggestion on whether this is a Total Clearance Mistake? Std PASM on/off vs Sport Suspension PASM on/off clearance details. Actually, just a simple it's OK or don't mess with your car would be fine but I do love the technical details. Thank you all very much for any help.
#14
Race Car
Hopefully someone can assist before I make a mistake I'll regret. I have a 2013 Carrera 911S with standard dual mode PASM, no Sport Suspension. However, I want the extended front spoiler that comes with the sport suspension, the tongue looking front spoiler. I have done exhaustive physical measuring and reading but still not 100% sure on this one. Can someone please offer a factual suggestion on whether this is a Total Clearance Mistake? Std PASM on/off vs Sport Suspension PASM on/off clearance details. Actually, just a simple it's OK or don't mess with your car would be fine but I do love the technical details. Thank you all very much for any help.
Mine is now 4 years old, has some scrapes on the bottom where they are unobtrusive. I managed to pop it off once when I first got the car.
Last edited by chuckbdc; 02-13-2016 at 07:46 PM.
#15
Drifting
Rflanaga, welcome to RL.
A common misconception about PASM and PASM Sport (SPASM unofficially) is that it adjust ride height in some way. As chuck above says, it does not do that.
In a nutshell, PASM and SPASM are the same things EXCEPT for one difference: SPASM has shorter springs and thus the ride height is (permanently) 10mm lower than PASM.
No PASM: Sea Level
PASM: Sea Level minus 10mm
SPASM: Sea Level minus 20mm
A common misconception about PASM and PASM Sport (SPASM unofficially) is that it adjust ride height in some way. As chuck above says, it does not do that.
In a nutshell, PASM and SPASM are the same things EXCEPT for one difference: SPASM has shorter springs and thus the ride height is (permanently) 10mm lower than PASM.
No PASM: Sea Level
PASM: Sea Level minus 10mm
SPASM: Sea Level minus 20mm