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Barryn
Monza


Joined: 19 Oct 2013
Posts: 169
Location: Cumbria and West London


PostPosted: Mon Aug 28, 2017 8:55 pm    Post subject: Öhlins Fitted to my 993 Reply with quote

Ok. Embarassed
It's been a while.

The suspension has been in the car since May so now full bedded/settled in.
Now I must admit I'm a bit of an Öhlins fan, so may be biased, but this is really based on using their dampers for thirty years on different things over that time.
I fitted them myself (roughly) just so I could reduce the costs and do all the prep and cleaning that I knew I would need to do "while I was there" so spent two days going through all the bits and pieces.
New ARB's were also on the list as it was obvious I was still on the originals.

So, the plan was fit suspension then the ARB's then drive to Centre of Gravity to get all the important geometry set.
Some images..






The old bushes.. shot.




The previous shocks were Koni FSD's, I had no real issues with these but for a need (or perceived need) for the ability to adjust the damping.



Hub separated, before a good clean..


Then the top mounts.


New top mount plate offered up.



But decided that they should go the other way round, these are solid top mounts and are very nicely machined.





Initial fitting, with new bushes and clamps. (SuperPro bushes used)

The car was then driven to Center of gravity for everything to be finished off properly
Chris and Pete really do know what they are doing and they share all the details of what, where, why and when, it was great to watch (I tried to help by not getting in the way too much)
The car was birthed after a test drive to assess the current handling then the before geometry was taken.
The company couldn't be better, a beautiful RS.





The only surprise of the day was my lower arms, they had to go, but every cloud...
Chris has some brand new genuine replacements, so the job wasn't stopped.



So then on to the final fitting and geometry set up, all the parts touched received a mark after torque checks.
The ride height was set at RS plus 10mm making for a best real world balance.






The day ended with Pete and I going for a test drive around the same route as the morning to ascertain any differences.

Amazing results, the confidence the car gave as soon as you got going was well worth all the effort. What was a surprise was the better initial acceleration, due to less weight transfer to rear and vice versa, better more stable braking the front as there was less dive, and it tracks so straight..
Turn in, stability, transition through corners then out through to the exit was so well damped, really impressed. (Very happy)
This was straight out of the box, I have done about three thousand miles or so now and the newness (stiction) is none existent.
The combination of the the geometry and the dampers has been well worth it, and after all the checks I'm 100% sure everything under the car is right.
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1997 CarreraS

Last edited by Barryn on Tue Aug 29, 2017 9:40 pm; edited 2 times in total
 
  
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JonnyBaddeley
Monza


Joined: 07 Feb 2017
Posts: 170



PostPosted: Mon Aug 28, 2017 9:10 pm    Post subject: Reply with quote

I fancy these on my 997. I was immensely impressed with the damping on my Megane that had them. Superior to any other suspension I've had or been driven on.
 
  
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ms2015
Monza


Joined: 28 Oct 2015
Posts: 169



PostPosted: Tue Aug 29, 2017 6:53 am    Post subject: Reply with quote

Lovely job Barry.
Have C of G done your setup yet?
 
  
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Barryn
Monza


Joined: 19 Oct 2013
Posts: 169
Location: Cumbria and West London


PostPosted: Tue Aug 29, 2017 9:37 pm    Post subject: Reply with quote

JonnyBaddeley wrote:
I fancy these on my 997. I was immensely impressed with the damping on my Megane that had them. Superior to any other suspension I've had or been driven on.


I can't recommend them enough.. go for it.
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1997 CarreraS
 
  
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Barryn
Monza


Joined: 19 Oct 2013
Posts: 169
Location: Cumbria and West London


PostPosted: Tue Aug 29, 2017 9:38 pm    Post subject: Reply with quote

ms2015 wrote:
Lovely job Barry.
Have C of G done your setup yet?


See above.. more details ^ 🙂
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1997 CarreraS
 
  
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ms2015
Monza


Joined: 28 Oct 2015
Posts: 169



PostPosted: Tue Aug 29, 2017 10:39 pm    Post subject: Reply with quote

Barry a fascinating write up - great pictures and looks like the job was handled very well - you did the dirty bit of course:-)
The Lower arms were considered worn or not quite at the same degree of machined angle that they left the factory?
Lovely stuff - hope you are having a lot of fun driving it.
 
  
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Jamesyg
Hockenheim


Joined: 13 Aug 2013
Posts: 714



PostPosted: Wed Aug 30, 2017 8:22 am    Post subject: Reply with quote

Great write up.

Looking to switch my dampers our in the next 6 months for something more track orientated, but still road useable.

Currently looking at KW V3 or Bilstein PSS10 - maybe I need to add some Ohlins into the mix!
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996 Twin Turbo - Manual
79 MG Midget
 
  
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Sutton
Monza


Joined: 04 Mar 2009
Posts: 234
Location: Surrey


PostPosted: Wed Aug 30, 2017 9:10 am    Post subject: Reply with quote

Nice work!

What is the compliance like over small and large bumps?

My friend's 996 C4S on sports suspension was horrible. Hard and jiggly over all surfaces unless perfectly smooth, with lots of noise and felt thumps coming through into the cabin.

My C4 on B8's and H&R springs has better compliance and less noise than his C4S but big lumps in the road do come through. Body control is better though than other 993s I've ridden in.
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1994 993 C4
 
  
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MaxA
Imola


Joined: 11 Oct 2015
Posts: 805
Location: Helsinki


PostPosted: Wed Aug 30, 2017 9:52 am    Post subject: Reply with quote

Nice to see a 993 on Ohlins. What a great combination. I just took delivery of a set of R&Ts for my old 2006 MINI: I just got a bit tired of the ultra firm ride of the Bilstein B14s and - like you - wanted a bit of adjustability. The poor 997 on the other hand will need to stay on its Damptronics...
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2010 997.2 in Finnish "Suomi-100" spec: 4S, white over blue, Nokian studded tyres.
 
  
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MilSub
Spa-Francorchamps


Joined: 10 Jun 2014
Posts: 301
Location: Hampshire


PostPosted: Wed Aug 30, 2017 10:41 am    Post subject: Reply with quote

Nice one Barry, great pics and write-up Thumb

I take my hat off to you for removing the old suspension and installing the new - nice job. Also a fantastic opportunity to spend some time checking the condition of bodywork and undercarriage and give it a bit of a clean-up too.

It must have been a great feeling when you experienced that immediate improvement once it was all set-up correctly.

Now it's all bedded in, when does the playing with adjustments start?? Laughing
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1996 Carrera 4
 
  
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Barryn
Monza


Joined: 19 Oct 2013
Posts: 169
Location: Cumbria and West London


PostPosted: Wed Aug 30, 2017 11:50 am    Post subject: Reply with quote

The best way to describe the feel of the car now is firm, it is just very well damped, it doesn't dive, crash or skitter, and no extra noise.
It is harder but in a good way Embarassed

The roads up here can be rough with dips, crests and compression's that did upset the car especially if you backed off on the power (due to unfamiliarity of the road for example) you could feel the weight of the engine trying rebound a little bit fast and "push" you a bit or threaten to over take you..
The car is balanced now, I feel the front end better and the back end of the car now has a controlled depth to it, the dampers are in control not the other way round.

The chap who does my MOTS races a Renault cup car with track Ohlins on and he said I was going to ruin my car!! So I was a little worried, these are not track dampers, they are absolutely perfect for the driving I do.
My wife has been with me on a few trips this summer and hasn't batted an eyelid, no complaints at all. (whilst she isn't fully calibrated she would have certainly complained if the ride was harsh)



Sutton wrote:
Nice work!

What is the compliance like over small and large bumps?

My friend's 996 C4S on sports suspension was horrible. Hard and jiggly over all surfaces unless perfectly smooth, with lots of noise and felt thumps coming through into the cabin.

My C4 on B8's and H&R springs has better compliance and less noise than his C4S but big lumps in the road do come through. Body control is better though than other 993s I've ridden in.

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1997 CarreraS
 
  
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Cameltoe & Heel
Suzuka


Joined: 26 Jan 2009
Posts: 1026
Location: Preston - Lancs


PostPosted: Wed Aug 30, 2017 11:59 am    Post subject: Reply with quote

I think I would have considered Ohlins if I was intending to track the car as they make excellent components, my experience of them is mainly on motorcycles when I raced.

I have a Targa so no intention of track use and thought the FSD set-up maybe more suitable, not to mention cost.

Trev
 
  
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Barryn
Monza


Joined: 19 Oct 2013
Posts: 169
Location: Cumbria and West London


PostPosted: Wed Aug 30, 2017 12:01 pm    Post subject: Reply with quote

Thanks Tony.

I like to take some time over this stuff and I'm not paid by the hour so I can really make sure it is spot on. Though rolling around under the car for few days certainly works some muscles..
Everything is so well put together on these it is a pleasure to
work on them. So this is a win win.

Off to Fort William next week I will be tweeking then.


MilSub wrote:
Nice one Barry, great pics and write-up Thumb

I take my hat off to you for removing the old suspension and installing the new - nice job. Also a fantastic opportunity to spend some time checking the condition of bodywork and undercarriage and give it a bit of a clean-up too.

It must have been a great feeling when you experienced that immediate improvement once it was all set-up correctly.

Now it's all bedded in, when does the playing with adjustments start?? Laughing

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1997 CarreraS
 
  
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Barryn
Monza


Joined: 19 Oct 2013
Posts: 169
Location: Cumbria and West London


PostPosted: Wed Aug 30, 2017 12:06 pm    Post subject: Reply with quote

FSD's work really well are great value for money and are a definite improvement over standard so good choice Thumb


Cameltoe & Heel wrote:
I think I would have considered Ohlins if I was intending to track the car as they make excellent components, my experience of them is mainly on motorcycles when I raced.

I have a Targa so no intention of track use and thought the FSD set-up maybe more suitable, not to mention cost.

Trev

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1997 CarreraS
 
  
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ChrisT70
Barcelona


Joined: 26 Mar 2015
Posts: 1441
Location: The Sea


PostPosted: Wed Aug 30, 2017 12:08 pm    Post subject: Reply with quote

would suggest some clear wax (bilt hamber) for those lovely threaded sections for the spring collars/locknuts, altho Ohlins are great quality they still rust up on there in winter etc. i put ohlins on my mx5 sprint car and it transformed the handling Thumb
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Afraid of dipping a toe- beware Sharks
Ex 993S now sold
 
  
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Sutton
Monza


Joined: 04 Mar 2009
Posts: 234
Location: Surrey


PostPosted: Wed Aug 30, 2017 2:20 pm    Post subject: Reply with quote

Thanks for the feedback Barry.

I don’t mind a firm ride although I would like to keep my lumbar discs uncrushed!

I think for road use, getting the right balance (which differs from driver to driver) between ride comfort and control is the holy grail. It sounds like you're getting towards the optimal position for your needs. Keep us up to date with your thoughts. thumbsup
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1994 993 C4
 
  
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Cameltoe & Heel
Suzuka


Joined: 26 Jan 2009
Posts: 1026
Location: Preston - Lancs


PostPosted: Wed Aug 30, 2017 4:07 pm    Post subject: Reply with quote

So your A arms were shot then?, ball joint or bushes or both.

Looks like you've gone for original items there?, must have cost a fair bit?, I opted for exchange items from Hartech which look pretty good also.

I'm pretty sure good A arms on the rear is essential for decent handling, I guess you could make a case for the control arms too.

Trev
 
  
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Barryn
Monza


Joined: 19 Oct 2013
Posts: 169
Location: Cumbria and West London


PostPosted: Wed Aug 30, 2017 8:05 pm    Post subject: Reply with quote

Hey Trev.

It was the ball joint end, they actually got through the MOT fine a few months earlier.
But when you are dealing with perfectionists, no movement is acceptable, it would have been a false economy to leave them in.
Yes, OE.

They had no Hartec left (they normally do)
Happy to get these TBH, Chris let me have them at a great price.
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1997 CarreraS
 
  
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harryk
Spa-Francorchamps


Joined: 24 May 2007
Posts: 339
Location: N.Ireland


PostPosted: Thu Aug 31, 2017 8:24 am    Post subject: Reply with quote

Thanks for the information OP, I've had my car set up by CG and it's great, but it's on Monroes that are as new. I want to remove some of the floatiness that occurs on our roads (sounds quite similar to your situation) and was considering Ohlins.

Think you've made my mind up: anyone want some as new MO33 springs and Monroes next springtime ?
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1995 993 C4 Coupe. Schwartz/Flamenco Red soft nappa leather. Exclusive leather everything, Exclusive extended centre console, MO33 suspension set up by CG, Chipwizards 287bhp remap, FDM Goldenrod & SSK, Techart exhaust, Techart pedal set, Tequipment dials, Tequipment handbrake & gearlever.
 
  
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nickjonesn4
Monza


Joined: 10 Aug 2017
Posts: 165
Location: Edinburgh


PostPosted: Sun Nov 05, 2017 1:48 pm    Post subject: Reply with quote

Barry

Good to meet you briefly today and thanks for the chat on your suspension set up. Mind now firmly made up to go with Onlins.

Hopefully see you at a PCBG event soon. Hope you made your lunch date!!
 
  
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