Hopefully, those at Techart know more than I do about springs, but here's some of what I THINK I know.
Aftermarket sport springs and coil-overs both have stiffer spring rates than the OEM springs. That means a somewhat firmer ride with either.
Some have installed sport springs while keeping the OEM shocks, but I wouldn't advise that, especially on
PASM cars, because the shocks (dampers) are not valved to match the stiffer springs, and thus may not dampen optimally, and may wear excessively.
I think the safest route would be a set of coil-overs designed specifically for
PASM suspensions. I'd consider those by Bilstein. They are a lot more expensive than just a set of springs, but the shocks should dampen properly, last longer, and give a more compliant ride.
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PASM - Porsche Active Suspension Management
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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 |
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