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New suspension

RichardLW

RichardLW

New member
Got the car back today with the new bits on - M030 springs, Bilstein HD shocks and turbo roll bars 22f/21r - and what a difference. The car seems so much better planted; theres far less understeer; it doesn't dive under braking; the roll through bends is far far less and, guess what, its also an awful lot quieter. The tyres noise is much reduced and the joins between the concrete strips on the M25 produce half the racket they did before.

The ride is much better too, with far better damping, and it doesn't crash into potholes. One satisfied customer - but a shame that it wasn't ready in time for the BH trackday on Sunday. Oh well, Bedford beckons...
 
Sounds nice Richard, congratulations on the upgrade - bet she hustles along nicely now!?

You obviously got balancing and geometry done too?
 
Hi Richard

Did you get your suspension done in Camtune? Think I saw your car in there when I went to pick up mine. If so it was looking in great condition :) I also have a silver C4S and was having the suspension done too (Bilsteins from Gert).

Did you get a copy of the alignment settings from Tim? And did you specify any particular certain setup?

Cheers
Mark

P.S. Car handles so much more securely now. It's a bit like getting new glasses - suddenly realise what you've been missing!
 
Hi Mark

Yes, Camtune did the work - mine is B911OLM - and Gert sent the stuff over. He was very helpful and stopped me specifying the PSS9 kit as he felt that my limited track use made a lot of it superfluous. I didn't get a printout from Tim but I did ask them to go more track orientated, and I do have a bit of history with them on this topic. I have had the front dropped another 10mm but the rear is still at the previous M033 height as I have driveway problems - funnily enough the new springs have probably resolved those though.

The car feels an awful lot more positive now and round a couple of local roundabout it seems about 10mph quicker before getting too understeery (and heading for the Texaco station...).

I though the car looked good too, thanks. Was yours in there when I collected at about 4.30 yesterday?

Richard
 
Hi Richard,

Can I ask how much the total damage was ?

I'm looking at getting my 993 C2 done and looking at various options.

Thanks,

Ravi
 
ravi911 - sorry for the delay in getting back to you. I got the whole suspension kit from Gert Carnewal and that cost 1891 euro including shipping and the fancy scrape bar that goes on the front to protect it. Fitting it and setting it up took Camtune 10 hours in total, plus a few more little bits - I got this discounted because they didn't finish on time and I missed the BH GP trackday - but you can take your chosen specialist's rate and work it out. All in all, I think the job cost about £1900 which is quite a lot but the end result is so much better.

Richard
 
Congrats.

Just been through the pain barrier with my suspension on my C2S. Only just bought the car--concours winner supposedly-but not at all happy with it. Was hoping that it would spontaneously combust and leave the 30 plus grand that I paid for it on the driveway.

Anyhow, decided to cansel Christmas and spend all my drinking vouchers with Gert. Went for the Pss9 and Mo 30 roll bars and drop links.

Car was previoulsy lowered to approx RS height using Eibach springs and std shocks but was awful on the road.

Bump steer gone, crashing noise going over rumble strips gone, severe shaking through the steering wheel gone. brown underpants gone. Smile on face--restored.

Had it all done and set up at Ninemeister--can recommend Robin--it's a bit of a trek from Kent but worth it for me anyway.

Also had oil leaking rocker cover replaced, dodgy paint on turbo spoiler grille repainted, non working cd changer repaired, dissy cap replaced, K & n air filter fitted, dyno testerd etc blah blah.

Into Wayne the wizard on Monday for a re-map and then I'll probably get bored with it and sell i !

Cliff

 
And I just noticed that I have lost the awful vibration I used to get between 55 and 65 mph. How does that work then?

Without a doubt, scrapping the original suspension is a superb upgrade.
 
Maurice

I had a bad vibration before I had the wheels restored and after this it moved up to its last point. Given that the wheels were stripped and all the weights and crap removed prior to refitting and rebalancing, I was a bit surprised to encounter the problem again. But, and its a big but, it only ever occured when dawdling and accelerating gently; on slowing down it was much higher up at around 85/90mph. It is now gone completely and the control arm bushes have not been changed so I can only assume that it was some other component causing the problem. And the tyre wear is pretty much even.

Richard
 
Richard,

I would be willing to put money on it that the vibration is due to your tyres. Quite often the wheel assembly can be out of balance radially rather than laterally. Unfortunately, most wheel balancing machines only check lateral balance and not radial.

The reason the vibration changed when when you had the wheels refurbished is becasue the tyres were removed and then replaced on the same rims but in a different position rotationally. There's not much you can do about it but it will probably disapear when it is tyre change time.

Here's a link explaining radial force measurement and radial force variation (RFV)

http://www.gsp9700.com/pub/technical/4202T/5THEO004.cfm

Taj
 
I reckoned it was the tyres or maybe a bent wheel - either way, theres not much I can do as you say except, maybe, a few more trackdays....
 
Richard, apologies for delay

No technical advice to give or definitive reason for it, but severe shaking on the wheel between 55 and 60 has been eliminated. Wheels have not been balanced or tyres removed and repositioned. The wheel shake felt exactly like unbalanced or damaged wheels giving lateral shake, but thankfully the problem has gone away and the car is entirely different now.

Cliff
 
Maurice.

Yes it is the very same car. I have spoken with you about the suspension and wheel issue before and checked out the tech forum which lead me to the pss9. Gert recommended the change of roll bar and drop links so I went for that.

Ninemeister set up 6 rears and 4 front the 4 front was based on my complaint about the previous set up being too 'bouncy' and I think Robin interpreted that as being too hard, but it was down to the rebound capabilities of the monroes with shortened springs.( I think--but no longer really care [:D])

Ride height etc set up as RS.

Yes it still has 19's--discussed with you previously--will probably change to 18's (when I have recovered from the suspension costs) and give myself a bit more flex in the deeper tyre sidewalls.

Will register with the 993 register now that I have decided to keep it.

Rgds

Cliff
 
I must admit I would have liked to lower mine to RS height but given that a half decent bag of shopping has to be taken out of the car before I can reverse onto my drive kind of stopped that idea. Funny, my 964 was lowered about 40mm and I had no problem - greater overhangs maybe on the 993.
 
Hello all,
I currently have MO30 springs and standard dampers fitted.If MO33 springs were fitted with standard dampers I understand the ride height will be lowered.Will this make a difference when it comes to the current trend of traffic calming(ie Speed humps).At the moment I can drive over them all and the underneath of the car never hits them.Will using MO33 springs change that?Grateful for your views.
Richard.
 
Hi all,
I had a MO30 kit fitted with HD bilstiens as supplied from Gert and strut brace, fiited by a secialist and supposedly all set up to RS height etc. 18" rims with P zero Asametrico or what ever your call them. I wanted Rosso but mistake was made. Any way now to the point, my car when driving along country lanes really pulls from side to side with every contour of the road, it feels like you are fighting it to keep it in a straight line. Makes it a lot harder to drive compared to when it was standard. I guess on the track with smooth surface it would be fine.
Has any one else experianced this.
Im not complaining it handles the corners great , just not sure if this is normal.
Regards
Stephen 993 C4
 

ORIGINAL: sturman

Hello all,
I currently have MO30 springs and standard dampers fitted.If MO33 springs were fitted with standard dampers I understand the ride height will be lowered.Will this make a difference when it comes to the current trend of traffic calming(ie Speed humps).At the moment I can drive over them all and the underneath of the car never hits them.Will using MO33 springs change that?Grateful for your views.
Richard. 
Click to expand...

M030 and M033 are the same height. It's only if you have the car lowered to RS height that it wil be lower.

Ian.
 

ORIGINAL: SECTOR

Hi all,
I had a MO30 kit fitted with HD bilstiens as supplied from Gert and strut brace, fiited by a secialist and supposedly all set up to RS height etc. 18" rims with P zero Asametrico or what ever your call them. I wanted Rosso but mistake was made. Any way now to the point, my car when driving along country lanes really pulls from side to side with every contour of the road, it feels like you are fighting it to keep it in a straight line. Makes it a lot harder to drive compared to when it was standard. I guess on the track with smooth surface it would be fine.
Has any one else experianced this.
Im not complaining it handles the corners great , just not sure if this is normal.
Regards
Stephen 993 C4
Click to expand...

If the tracking was set to RS specs rather than normal road specs when lowering the height then it makes the car more nervous in a straight line. As does going from 17" wheels to wider 18" wheels on country lanes. You should ask the specialist what geometry settings were done as a first step.

Ian.
 
Hi Ian,
Im a member of the R8 region also. Its the white one. Thanks for the replay I will chat with you when I see you next.
Hope your race car is going to plan.
Regards
Stephen.
 
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