Menu toggle

Koni/M033 refresh - 500 mile report

mf993

New member
I have had the suspension refreshed on my 993 C2 tiptronic S (1996) at circa 82K miles, all work done by Chris Franklin at Centre Gravity (CG).

My brief to CG was "optimize for typical UK roads as well as make it a super GT car for tours on the continent". I'm not bothered about "track" set-up for this car (I 've just bought a Clio 200 cup for those activities!).

before
original standard springs had sagged approx 1 inch over the years
original standard shocks (Munroe) "" all 4 leak free but Chris demonstrated abnormal compression/rebound forces after dismantling "" 1 was very dysfunctional, 2 abnormal, 1 passable
front top mounts split
front wishbone bushes split
bump stops disintegrated
one inner track rod end worn out

after
M033 spring + Koni FSD damper package from Carnewal (Koni UK would/could not match Gerd's prices)
Hartech reconditioned wishbones x 2 (i.e. standard rubber bushes)
one inner track-rod end replaced
new top mounts and bump stops
geometry package

The 18 inch wheels (sport classic II) and recent Pirelli rosso tyres are unchanged.

I think Chris was chuffed that the geo results could be made perfect in terms of factory settings (I presume this indicates that the chassis is completely true). He also centered the reconditioned steering rack to factory settings.

First 500 miles report.

You can feel everything going on underneath you but the harshness over gratings/potholes etc. is now missing. So for instance, the trim does not rattle now and the windscreen does not squeak any-more (fingers crossed!). In terms of ride comfort, it is similar to an Audi on standard tyres or Mini on run-flats. In terms of composure, I feel very confident driving on bumpy B-roads even when you have to use the full width of the road (including the bits at the shoulder that have partially subsided) to avoid oncoming traffic hogging the road. This is to an extent that it is hard to know what "fast-road" would mean in a UK context, you would have to be quite brave to discover that on most public roads.

Summary

Very,very pleased with the new technology road set-up. This car will now be my default "daily drive", just have to source some winter rims/tyres....
 
ORIGINAL: MoC2S

mf993.... (?)

My apologies, I rudely omitted to sign my post, Martin Farrall (Warwickshire)

Sounds like a reasonable result for any refresh of the springs / shocks / bushes / alignment at your mileage .. especially given the faults noted.

Indeed. Actually the alignment had been checked/set up a year/5K miles earlier by CG. The primary motivation for refreshing was the parlous state of the top mounts, wishbone bushes and track-rod end.

Given your comparison benchmarks it is hard to draw any conclusions ..

All I can offer is this anecdote to add to the others I googled when making the "shall I go for standard M033 or these new fangled shocks decision".

There are tyre tests elsewhere on this forum, including snow tyre recommendations. Having spent some months on snow tyres this last winter (non-Porsche), I can only say they make a huge difference in the appropriate conditions ..

Thanks. I used Nokian tyres on a MB CLK last winter and fully appreciate the benefits. I would like to source the official 16" Winterrad wheels, these are obviously expensive new and I suspect will be rarer than hen's teeth used in the UK. Any suggestions would very much be appreciated.

cheers, Maurice

ditto, Martin
 
Hi

Do you know how the damping rates of the Koni's compares to the original Monroes?

This sounds like something I am building up to doing, could you give an indication of the costs?

Pete
 

ORIGINAL: burrow01

Hi

Do you know how the damping rates of the Koni's compares to the original Monroes?

According to the published information, the FSDs has a two-part valving system that is intended to provide different damping rates at different frequencies. I don't have any further technical details. When I made the decision to go Koni FSD over Munroe, I relied on CGs opinion based on Chris driving numerous 993s with various set ups.

This sounds like something I am building up to doing, could you give an indication of the costs?


The spring/shocks were:

993 Koni FSD : 650 Euro
M033 springs for the 993Tip : 372 Euro
Shipping to the UK : 25 Euro.
Total : 1047+21%vat = 1266,87 Euro

The labour + other parts bill was just under 1800 pounds

Martin


Pete
 

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.

Back
Top