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United Kindom, Ireland RegionDiscussion for members in the UK & Ireland, local events, etc.
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I have an 'S' Originally fitted with 19" Sport Designs but bought some standard 18" as well as some Boxster II 17" for use with Winter Tyres......Then changed the 17" Boxster II's for standard Cayman 17", thinking they would go straight on...WRONG.... but although the diameter of the discs may be the same the callipers have a different thickness/mounting? because although the wheels will go over the discs they need 8-10mm spacers to sit flush and not foul the callipers.....Good time to find out when everybodies closed for christmas....not
I'm amazed at this. If I remember correctly, the calipers are the same, the rear disks are the same diameter, and the only difference is a small increase in the diameter of the front disks. Do the rears fit OK? Is it just the fronts? All the more surprising that the Boxster 17s should fit.
Does anyone have a parts CD to check if there is a different caliper mount for the S over the 2.7?
Tess, I would really appreciate a report on the difference in ride harness between the 17" and the 18" once you have resolved this.
My wife has a lower back injury from being thrown off a horse, so ride quality is a really big issue for us in trying to decide if I should buy the standard Cayman and forego the extra HP. Based on all I've read to date I am under the impression that the 17" will offer her the smoothest ride.
Qman ... the best ride would probably come from a base car, 17" wheels, but with PASM, set to normal. If I understand it right, this is a bit softer than just the standard suspension. The seating position is quite low though, so she might want to try getting in and out too, in case that give her back issues.
Kwaaiman ... I stand corrected, there is more difference than I thought.
John H
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
Based on my readings that is exactly the same conclusion I've come to. She does not have difficulty on entry or exit, but from the combo of stiff suspensions, firm seats, etc. Strangely enough the one car I have which gives her the least problem is my '59 MGA as the heavily padded seats are more forgiving.
For someone with a sensitive back, I'd say the Cayman is quite a firm ride, irrespective of wheels or suspension choice. Try and get the dealer to lend you one for a longish test drive to see if it really is suitable. An hour or two should do, but 5 minutes round the block certainly won't.
Your point is well taken. Frankly I try to do that with every car I buy after having a bad experience many years ago when I found I hated a certain car's seats within 45 minutes but it was too late to do anything about it.
Currently I have an S2000 which has proven too firm for her on rides of any length. I won't go into the lengths we've gone through trying to find a suitable daily driver. She hated the new BMW 330 within 5 miles. But, and this is a big but, she drove a Cayman for a short trip and didn't come back complaining. Even if it became just a short trip car for us, it would be better than the the S2000 - at least that's what I'm hoping.
Tess, I would really appreciate a report on the difference in ride harness between the 17" and the 18" once you have resolved this.
My wife has a lower back injury from being thrown off a horse, so ride quality is a really big issue for us in trying to decide if I should buy the standard Cayman and forego the extra HP. Based on all I've read to date I am under the impression that the 17" will offer her the smoothest ride.
All I can say is the difference between 19” and 18” was unbelievable. The ride is so much better on 18”s so can only presume that on 17” is will be more compliant again. When I can get the chuffin front wheels on, I’ll let you know. Only other advice is “don’t go for the sports seats if you want a bit more “soft padding” between your wife’s bottom (doesn’t sound quite right, but you know what I mean) as said sports seat are quite firm
For Reference I think a 5mm spacer will let the standard 17” front wheel clear the S Calliper, but I’ll check after the holiday and let you all know (Yes JH the rears go on no problem)
Last edited by Tess Tickle; 01-03-2007 at 08:41 AM.
Discussion for members in the UK & Ireland, local events, etc.
