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View Poll Results: Which best described you and your car
I've read a lot of posts here on the dreaded 'Clunk' and 'Sonic Boom' that seems to exist in a lot of Caymans when going over certain bumps.
From the posts here, it seems the problem exists in both 2006 and 2007 models suggesting that the problem has not yet been corrected, though there is talk that Porsche is working toward a solution.
As someone who isn't yet a Cayman owner, I am very curious if this problem is more or less prevalent in cars equipped with PASM.
Please take a second to participate in the poll so we can see if there is any pattern to this anomaly.
Thanks.
PASM - Porsche Active Suspension Management
This active damping system offers continuous adjustment of individual damping forces based on current road conditions and driving style.
The driver can choose from two setup modes, ‘Normal’ and ‘Sport’, using a separate ‘damper’ button on the center console. ‘Normal’ mode is designed for general road driving and circuits with uneven tarmac. ‘Sport’ mode is intended for smoother track surfaces, where the harder settings help eliminate pitch and roll.
In either mode, PASM continuously evaluates the current conditions while automatically selecting the corresponding damper rates from the respective set of mapped values.
A range of sensors are used to monitor the movement of the body under acceleration, braking and cornering maneuvers, as well as on poor road surfaces. The PASM control unit then evaluates this data and modifies the damping force on each individual wheel in accordance with the selected mode. The result is a significant reduction in body movement as well as a better grip on the road.
For example: if ‘Sport’ mode is selected, the suspension is automatically set to a harder damper rating. If the quality of the track surface falls below a certain threshold, the system immediately changes to a softer rating within the ‘Sport’ setup range. When the quality of the tarmac improves once more, PASM automatically returns to the original, harder rating.
Need more information about PASM? Click this link: FAQ for PASM
My car went in and had new "rubbers" fitted, which improved the situation. I've just taken 19" sport designs off and put 18" std wheels on and there's now no clunking at all!!!! Maybe you should inclued wheel size in the Poll
Last edited by Tess Tickle; 11-10-2006 at 02:22 PM.
I had dinner last night with one of my cycling buddies who happens to be a longtime Porsche mechanic, currently working at an independent Pcar only facility. He has heard the clunk and I was telling him about Rainer's fix posted here in the articles section. His first comment was "why not let the dealer fix it?" I pointed out that apparently the dealers' attempts have been futile in most cases, while someone here on the forum has identified the problem and come up with an easy fix. He's going to do it for me in the next couple of weeks. Not trying to be a nanny, but waiting for Porsche to acknowledge and come up with a fix when there already is one posted here seems??? I'm not waiting.
Good suggestions about tires and aftermarket suspension. It would be interesting to know how these two items affect the dreaded clunk.
I think it would be safe to assume that a stiffer suspension and larger wheel will add to the problem.
Let's see how this shakes out. As it is, we will already have to break the results into two different charts to see the whole picture. If we had more answers, we would need to cook it down even further.
As of now, with a real small cross section of responses, it is looking like 80% of non PASM cars are affected versus only 20% of PASM equipped cars.
PASM - Porsche Active Suspension Management
This active damping system offers continuous adjustment of individual damping forces based on current road conditions and driving style.
The driver can choose from two setup modes, ‘Normal’ and ‘Sport’, using a separate ‘damper’ button on the center console. ‘Normal’ mode is designed for general road driving and circuits with uneven tarmac. ‘Sport’ mode is intended for smoother track surfaces, where the harder settings help eliminate pitch and roll.
In either mode, PASM continuously evaluates the current conditions while automatically selecting the corresponding damper rates from the respective set of mapped values.
A range of sensors are used to monitor the movement of the body under acceleration, braking and cornering maneuvers, as well as on poor road surfaces. The PASM control unit then evaluates this data and modifies the damping force on each individual wheel in accordance with the selected mode. The result is a significant reduction in body movement as well as a better grip on the road.
For example: if ‘Sport’ mode is selected, the suspension is automatically set to a harder damper rating. If the quality of the track surface falls below a certain threshold, the system immediately changes to a softer rating within the ‘Sport’ setup range. When the quality of the tarmac improves once more, PASM automatically returns to the original, harder rating.
Need more information about PASM? Click this link: FAQ for PASM
As of now, with a real small cross section of responses, it is looking like 80% of non PASM cars are affected versus only 20% of PASM equipped cars.
The reason for that being the PASM cars do have a continuously adaptive suspension that reads the road bumps (even when sport mode is not engaged) steering angle, ride height, how demanding you're driving the car, and a myriad of other factors and instantaneously adjusts the shock valving on the fly. Many people think that the PASM option is only for the "sport" mode cool, stiff suspension for the track, but this shows another reason to pay all that money for a fully adaptive suspension.
brad
PASM - Porsche Active Suspension Management
This active damping system offers continuous adjustment of individual damping forces based on current road conditions and driving style.
The driver can choose from two setup modes, ‘Normal’ and ‘Sport’, using a separate ‘damper’ button on the center console. ‘Normal’ mode is designed for general road driving and circuits with uneven tarmac. ‘Sport’ mode is intended for smoother track surfaces, where the harder settings help eliminate pitch and roll.
In either mode, PASM continuously evaluates the current conditions while automatically selecting the corresponding damper rates from the respective set of mapped values.
A range of sensors are used to monitor the movement of the body under acceleration, braking and cornering maneuvers, as well as on poor road surfaces. The PASM control unit then evaluates this data and modifies the damping force on each individual wheel in accordance with the selected mode. The result is a significant reduction in body movement as well as a better grip on the road.
For example: if ‘Sport’ mode is selected, the suspension is automatically set to a harder damper rating. If the quality of the track surface falls below a certain threshold, the system immediately changes to a softer rating within the ‘Sport’ setup range. When the quality of the tarmac improves once more, PASM automatically returns to the original, harder rating.
Need more information about PASM? Click this link: FAQ for PASM
That's exactly the point I am trying to coroborate.
I hope lots of people vote so we can get an accurate picture. Once it's received more votes, I'll do the math again and see if we can draw any conclusions.
Of that table posted how many "cars" make up the 100% of the PASM and 100% of NON? That makes a big diffreance.
PASM - Porsche Active Suspension Management
This active damping system offers continuous adjustment of individual damping forces based on current road conditions and driving style.
The driver can choose from two setup modes, ‘Normal’ and ‘Sport’, using a separate ‘damper’ button on the center console. ‘Normal’ mode is designed for general road driving and circuits with uneven tarmac. ‘Sport’ mode is intended for smoother track surfaces, where the harder settings help eliminate pitch and roll.
In either mode, PASM continuously evaluates the current conditions while automatically selecting the corresponding damper rates from the respective set of mapped values.
A range of sensors are used to monitor the movement of the body under acceleration, braking and cornering maneuvers, as well as on poor road surfaces. The PASM control unit then evaluates this data and modifies the damping force on each individual wheel in accordance with the selected mode. The result is a significant reduction in body movement as well as a better grip on the road.
For example: if ‘Sport’ mode is selected, the suspension is automatically set to a harder damper rating. If the quality of the track surface falls below a certain threshold, the system immediately changes to a softer rating within the ‘Sport’ setup range. When the quality of the tarmac improves once more, PASM automatically returns to the original, harder rating.
Need more information about PASM? Click this link: FAQ for PASM
Thanks for creating this thread. Like you, I have been debating with myself over the advantages of PASM and the benefits of waiting until Porsche answers the bell to knock out the clunk.
PASM - Porsche Active Suspension Management
This active damping system offers continuous adjustment of individual damping forces based on current road conditions and driving style.
The driver can choose from two setup modes, ‘Normal’ and ‘Sport’, using a separate ‘damper’ button on the center console. ‘Normal’ mode is designed for general road driving and circuits with uneven tarmac. ‘Sport’ mode is intended for smoother track surfaces, where the harder settings help eliminate pitch and roll.
In either mode, PASM continuously evaluates the current conditions while automatically selecting the corresponding damper rates from the respective set of mapped values.
A range of sensors are used to monitor the movement of the body under acceleration, braking and cornering maneuvers, as well as on poor road surfaces. The PASM control unit then evaluates this data and modifies the damping force on each individual wheel in accordance with the selected mode. The result is a significant reduction in body movement as well as a better grip on the road.
For example: if ‘Sport’ mode is selected, the suspension is automatically set to a harder damper rating. If the quality of the track surface falls below a certain threshold, the system immediately changes to a softer rating within the ‘Sport’ setup range. When the quality of the tarmac improves once more, PASM automatically returns to the original, harder rating.
Need more information about PASM? Click this link: FAQ for PASM
