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  1. FreshDriver

    Porsche 718 Cayman GTS bumpsteer on a factory SPASM setup problem..any idea where to look ?

    Here are two videos. First one is using normal suspension setting, second one is using sport suspension(stiffer) setting. First Video https://www.youtube.com/watch?v=37jCYJl2WpY Here, the vehicle is passing over a diagonal highway joint, and you may notice steering shake, indicating that the...
  2. FreshDriver

    Porsche 718 Cayman GTS bumpsteer on a factory SPASM setup problem..any idea where to look ?

    I have 20" inch wheels Any way to measure the damping ? After alignment have not checked carefully, will do it today.
  3. FreshDriver

    Porsche 718 Cayman GTS bumpsteer on a factory SPASM setup problem..any idea where to look ?

    We took two cars to the hunter machine: my car, equipped with a retrofitted 20mm drop Porsche suspension, and another identical car with the same suspension, but factory-installed. Essentially, we had two identical cars, both with the same suspension setup; one was installed by a Porsche dealer...
  4. FreshDriver

    Porsche 718 Cayman GTS bumpsteer on a factory SPASM setup problem..any idea where to look ?

    Hello Cibachrome Will take a video this weekend.. When you say "But the ride steer is still horrid)..." You refer to the reading shown in the graphic after alignment ?
  5. FreshDriver

    Porsche 718 Cayman GTS bumpsteer on a factory SPASM setup problem..any idea where to look ?

    Hello All I had my car aligned using the Hunter alignment values specified for the -20mm Porsche Cayman 718, which are included in the Hunter machine's database. I've attached the graph showing new reading, as well as the charts comparing the alignment before and after the procedure. Any...
  6. FreshDriver

    Porsche 718 Cayman GTS bumpsteer on a factory SPASM setup problem..any idea where to look ?

    Thank You for your feedback. Do you suggest that the technician should review the installation of the parts, considering the unexpected symmetrical toe movement when the suspension compresses?
  7. FreshDriver

    Porsche 718 Cayman GTS bumpsteer on a factory SPASM setup problem..any idea where to look ?

    I hope this message finds you all well. It's been some time since our last correspondence, but just recently, we had the opportunity to use a Hunter Alignment Machine with a bumpsteer reader kit, and I believe the results warrant a discussion. To give you a brief background, my car was...
  8. FreshDriver

    Porsche 718 Cayman GTS bumpsteer on a factory SPASM setup problem..any idea where to look ?

    Hey everyone, Thank you so much for taking the time to respond in such detail. I really appreciate it. I'm going to add more information that might help with the diagnosis. Regarding the question "Hang on, are you hitting the joints with both wheels?", the problem is much more noticeable when...
  9. FreshDriver

    Porsche 718 Cayman GTS bumpsteer on a factory SPASM setup problem..any idea where to look ?

    Hello Brian The way I experience bumpsteer is when I go over the asphalt joints on highway bridges. When I pass over those types of joints at speeds over 140 km/h, the steering moves on its own, it turns by itself. I believe this is bumpsteer in the front suspension. When my car arrived from...
  10. FreshDriver

    Porsche 718 Cayman GTS bumpsteer on a factory SPASM setup problem..any idea where to look ?

    Hello Everyone, I have a problem with my Porsche Cayman 718 GTS. There are two types available: a 10mm drop with PASM (Porsche Active Suspension Management) and a 20mm drop with SPASM (Sport Porsche Active Suspension Management). Initially, my car came from the factory with the 10mm drop...

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