Have read various posts on 993 suspension upgrades and was wondering if anybody could help with specific comments for a 97 cabriolet 4. It runs on 17' Cup wheels. I have measured the current ride height based on Adrian Streather stats the current susp must have settled - current heights (f)145mm and (r)132mm. looks like red and violet (poss pink) std springs. Mileage 45K. If I want to replace the shocks and it seems opinion is best to buy Bilstein HD but what are best springs to get? Do not really want to lower from where its sits now (3 speed bumps into house) and should not think a cabriolet body really appropriate for Mo30 stiffer rating. Like the sound of recent posted Mo33 comments but that was on a coupe. The front of my car feels light and floaty (unless full tank full etc) when pushing on over less than flat roads and that is I suppose why I want to replace, particularly if all web comments of std shocks "gone" at 45k miles are to be believed. If I do not go Mo30 or Mo33 route am I left with only choice = std new springs on Bilstein HD shocks which will I assume take the car back to original heights of (f) 154 (r) 147. The car is only likely to be use on the road not tracked .
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
993 cabriolet suspension upgrade
- Thread starter pj2015
- Start date
Have read various posts on 993 suspension upgrades and was wondering if anybody could help with specific comments for a 97 cabriolet 4. It runs on 17' Cup wheels. I have measured the current ride height based on Adrian Streather stats the current susp must have settled - current heights (f)145mm and (r)132mm. looks like red and violet (poss pink) std springs. Mileage 45K. If I want to replace the shocks and it seems opinion is best to buy Bilstein HD but what are best springs to get? Do not really want to lower from where its sits now (3 speed bumps into house) and should not think a cabriolet body really appropriate for Mo30 stiffer rating. Like the sound of recent posted Mo33 comments but that was on a coupe. The front of my car feels light and floaty (unless full tank full etc) when pushing on over less than flat roads and that is I suppose why I want to replace, particularly if all web comments of std shocks "gone" at 45k miles are to be believed. If I do not go Mo30 or Mo33 route am I left with only choice = std new springs on Bilstein HD shocks which will I assume take the car back to original heights of (f) 154 (r) 147. The car is only likely to be use on the road not tracked .
Pickled Piper
New member
Hi, little point in buying replacement original spec springs unless the old ones have actually failled. If you go for Bilstein HDs then the installer will be able to set it to the correct height by using the threaded adjustment on the shock absorbers.
I would suggest your best options are just to replace the shock absorbers with Bilstein HDs plus new bushes etc. or M033 springs with Bilstein HDs. M033 springs have the same rates as the standard springs but are shorter thus giveing you a lower ride height. MO30 springs will give the same ride height as M033 but are stiffer (with a progressive rate) giving a firmer ride.
If it were my Cabriolet and used just on the road I would probably go M033 with Bilstein HDs. Anything more "hard core" will result in a deterioration in ride and given that the Cabriolet is less structurally stiff than the coupe, probably little improvement in handling.
I am sure others will be along to give their views.
pp
I would suggest your best options are just to replace the shock absorbers with Bilstein HDs plus new bushes etc. or M033 springs with Bilstein HDs. M033 springs have the same rates as the standard springs but are shorter thus giveing you a lower ride height. MO30 springs will give the same ride height as M033 but are stiffer (with a progressive rate) giving a firmer ride.
If it were my Cabriolet and used just on the road I would probably go M033 with Bilstein HDs. Anything more "hard core" will result in a deterioration in ride and given that the Cabriolet is less structurally stiff than the coupe, probably little improvement in handling.
I am sure others will be along to give their views.
pp
Thanks for advice what bushes do you mean the wishbones/anti rol bar? I will change shocks to HD Bilstein just need to decide whether to stick with original shocks or get M033. Does not seem much point in changing springs to M033 if the same spring rate as original but simply shorter to give lower height, surely that just means car will bottom out quicker. But that said the current springs appear to have "settled". In that context I assume that the new shocks will be better than the existing and not allow the car body movement to push through the shorter (M033) spring or the originals as fast? Take the point about cab not being as "strong" but I wanted the soft top so had to compromise.
Pickled Piper
New member
Hi pj,
yes by bushes I mean the anti roll bar bushes and the front wishbones. I agree about the springs. No point spending on the M033 springs unless you want the car to be lower.
You will probably find with new shock absorbers the car has less of a tendancy to bottom out.
Also, have you thought about front strut brace? I have been told by cabriolet and Targa owners that it is an improvement.
pp
yes by bushes I mean the anti roll bar bushes and the front wishbones. I agree about the springs. No point spending on the M033 springs unless you want the car to be lower.
You will probably find with new shock absorbers the car has less of a tendancy to bottom out.
Also, have you thought about front strut brace? I have been told by cabriolet and Targa owners that it is an improvement.
pp
Posts made and opinions expressed are those of the individual forum members
Use of the Forum is subject to the Terms and Conditions
Disclaimer
The opinions expressed on this site are not necessarily those of the Club, who shall have no liability in respect of them or the accuracy of the content. The Club assumes no responsibility for any effects arising from errors or omissions.
Porsche Club Great Britain gives no warranties, guarantees or assurances and makes no representations or recommendations regarding any goods or services advertised on this site. It is the responsibility of visitors to satisfy themselves that goods and/or services supplied by any advertiser are bona fide and in no instance can the Porsche Club Great Britain be held responsible.
When responding to advertisements please ensure that you satisfy yourself of any applicable call charges on numbers not prefixed by usual "landline" STD Codes. Information can be obtained from the operator or the white pages. Before giving out ANY information regarding cars, or any other items for sale, please satisfy yourself that any potential purchaser is bona fide.
Directors of the Board of Porsche Club GB, Club Office Staff, Register Secretaries and Regional Organisers are often requested by Club members to provide information on matters connected with their cars and other matters referred to in the Club Rules. Such information, advice and assistance provided by such persons is given in good faith and is based on the personal experience and knowledge of the individual concerned.
Neither Porsche Club GB, nor any of the aforementioned, shall be under any liability in respect of any such information, advice or assistance given to members. Members are advised to consult qualified specialists for information, advice and assistance on matters connected with their cars at all times.
