Air suspension & alignment
#1
Air suspension & alignment
I have the air suspension option, and am wondering about alignment. For nearly all of my driving, I keep my Cayenne at the lowered setting. I've made the assumption (based on nothing!) that this should impact the camber of my wheels. Is that true? Or has Porsche done some fantastic engineering so that when the Cayenne is raised or lowered it is taking into account the camber changes that must be happening? I did google around for this without good results.
Anecdotally, the inside shoulders of my tires are wearing more than the outside shoulders. Of course, that could just be from needing an alignment, not running lowered all the time (confirmation bias).
If the air suspension doesn't take into account the camber changes, should I have my next alignment done at the lowered setting?
Anecdotally, the inside shoulders of my tires are wearing more than the outside shoulders. Of course, that could just be from needing an alignment, not running lowered all the time (confirmation bias).
If the air suspension doesn't take into account the camber changes, should I have my next alignment done at the lowered setting?
#2
Race Car
I also drive mine on the lowered setting. I had the alignment done on the lower setting. So far in about 16k miles tire wear seems to be even. The tires that I removed, unknown mileage, were worn on the inner shoulders.
It's pretty obvious that there is no compensation for camber changes. When I put it into "special terrain" the front wheels are cambered inwards quite a bit.
It's pretty obvious that there is no compensation for camber changes. When I put it into "special terrain" the front wheels are cambered inwards quite a bit.
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davidpriebe (07-29-2024)
#3
RL Community Team
Rennlist Member
Rennlist Member
Have the alignment shop do the alignment at the sport height. Camber changes with the different heights - more camber (wheels in at the top) the lower it is.
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davidpriebe (07-30-2024)
#4
Rennlist Member
Can I jump in here with an easy question for the professionals to answer. Cayenne is going 1,5 inch lower from normal high at speed higher than 125 mph.
if I am driving always in low level mode, there is no additional lowering at a certain speed?!
thank you
if I am driving always in low level mode, there is no additional lowering at a certain speed?!
thank you
Last edited by ekstroemtj; 07-30-2024 at 02:31 PM.
#5
RL Community Team
Rennlist Member
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It drops to the lower sport mode height at somewhere between 75-80 mph depending on the tire size you run, which is around 125 kph (maybe that's what you meant to type but used mph). There is no further drop below the sport height at 125 mph or any other speed. Lowest setting is loading height - you can't drive at that speed. Next up and the lowest height you can drive at is Sport height, then Normal height, then Terrain height, then Special Terrain height..
#6
Rennlist Member
Ok I got it. Yes I mean 125 km/h. Sorry I am German. But the main question you have answered. No further drop from low level. I asked because the car feels really uncomfortable driving at highway speed lately.
thank you Petza.
thank you Petza.
#7
Three Wheelin'
Per the 955 Turbo Technic manual:
Low level
This level is intended for high-speed driving. Above
speeds of around 78 mph (125 km/h), the car is
lowered by around 1 in or 27 mm compared to
normal level.
When the speed drops to below around 25 mph
(40 km/h), the car is automatically raised to normal
level.
Special low level
At extremely high speeds, for example when operated
on a race track, the car is lowered at approx 130mph
(210 km/h) and returned to normal at approx 80mph.
Low level
This level is intended for high-speed driving. Above
speeds of around 78 mph (125 km/h), the car is
lowered by around 1 in or 27 mm compared to
normal level.
When the speed drops to below around 25 mph
(40 km/h), the car is automatically raised to normal
level.
Special low level
At extremely high speeds, for example when operated
on a race track, the car is lowered at approx 130mph
(210 km/h) and returned to normal at approx 80mph.
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ekstroemtj (08-02-2024)
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#8
RL Community Team
Rennlist Member
Rennlist Member
Per the 955 Turbo Technic manual:
Low level
This level is intended for high-speed driving. Above
speeds of around 78 mph (125 km/h), the car is
lowered by around 1 in or 27 mm compared to
normal level.
When the speed drops to below around 25 mph
(40 km/h), the car is automatically raised to normal
level.
Special low level
At extremely high speeds, for example when operated
on a race track, the car is lowered at approx 130mph
(210 km/h) and returned to normal at approx 80mph.
Low level
This level is intended for high-speed driving. Above
speeds of around 78 mph (125 km/h), the car is
lowered by around 1 in or 27 mm compared to
normal level.
When the speed drops to below around 25 mph
(40 km/h), the car is automatically raised to normal
level.
Special low level
At extremely high speeds, for example when operated
on a race track, the car is lowered at approx 130mph
(210 km/h) and returned to normal at approx 80mph.
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davidpriebe (08-06-2024)
#10
Rennlist Member
OP - Porsche engineers are truly wizards of the suspension art, but, sadly, they can’t make adaptive alignment a thing for the Pepper.
I can also attest the “go fast and low” mode works at >130mph. I couldn’t tell when it was lowering, but I noticed the bags pumped back up when I slowed somewhere below 90. I have my Sport height set 25mm below standard and had my alignment done at that height. I was happy the alignment procedure on the 955 is pretty simple.
I can also attest the “go fast and low” mode works at >130mph. I couldn’t tell when it was lowering, but I noticed the bags pumped back up when I slowed somewhere below 90. I have my Sport height set 25mm below standard and had my alignment done at that height. I was happy the alignment procedure on the 955 is pretty simple.
Last edited by hatchetf15; 08-01-2024 at 11:47 AM.