Suspension suggestion - 964

Suspension suggestion - 964

Author
Discussion

Glaston

Original Poster:

58 posts

190 months

Tuesday 20th April 2021
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I think time has come to replace the suspension on my C2. The existing suspension springs (Red) are looking a rusty and the rubber boots on the struts a bit knackered. The car is currently at RS height and is running 18” RUF rims with 80k on the clock.

Ideally I would like it to look the same, but with a less harsh ride, my back can’t take it anyone. The car isn’t tracked.

Possible options currently being considered include Bilstein B16, KW V3, or if I can justify it a set of Ohlins. Also whilst the suspension is in bits is it worth replacing all the rubber bushes, with new Rubber or should I go for PU.

Your thoughts, and recommendation would be gratefully received.

take-good-care-of-the-forest-dewey

5,134 posts

55 months

Tuesday 20th April 2021
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I'd add Exe-TC to that list if funds permit. Superb dampers.

IIRC Tuthill use them on their rally cars.

n12maser

580 posts

92 months

Tuesday 20th April 2021
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https://rennlist.com/forums/964-forum/795638-walte...

I have these on my 993 - highly recommend!

blackmamba

823 posts

236 months

Tuesday 20th April 2021
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If you car is mainly for road use, I am not sure it is worth going overboard on the dampers. A good set of Bilsteins or KWv3 would be sufficient and I would definitely avoid PU bushes and stick to rubber. The 18 inch wheels and lower profile rubber isn't helping the ride but I appreciate you like the look of 18s.

Steve Rance

5,446 posts

231 months

Wednesday 21st April 2021
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It really depends on what you are looking for. Elephant produce two very good bushing sets. One which is more compliant - which may well be what you are looking for - and a sport version which is a bit less compliant than RS bushing. I’d definitely look at fitting rose jointed spring plates as they will really tighten up the rear end of the car.

Dampers are a subjective topic. In terms of value for £ the KW Clubsport take some beating. They have the valving from the race damper so damping control is very good. The possible downside for you oils that the spring rates are reasonably high.

My 964 build thread is on here somewhere. There’s some useful info on there. My car has a sharp set up. I went Elephant sport busing and KW Clubsport dampers and find the car extremely good. The damping control is impressive.

Glaston

Original Poster:

58 posts

190 months

Wednesday 21st April 2021
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Many thanks for all your comments.

ras62

1,090 posts

156 months

Wednesday 21st April 2021
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Before looking at dampers you should look at your wheel / tyre choice. Go down to 17 inch and up a profile on the tyre. Also the Ruf wheel is very heavy. Using a lighter 17 wheel can save you 3-4kg on each wheel which makes a huge difference to how the spring/damper works and also livens up the performance to a surprising degree.

Orangecurry

7,421 posts

206 months

Wednesday 21st April 2021
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ras62 said:
Before looking at dampers you should look at your wheel / tyre choice. Go down to 17 inch and up a profile on the tyre. Also the Ruf wheel is very heavy. Using a lighter 17 wheel can save you 3-4kg on each wheel which makes a huge difference to how the spring/damper works and also livens up the performance to a surprising degree.
This x100

The RUF wheel is not the choice if driving enjoyment/ability is higher on your list than looks.

Thanks again to Florian for compiling.
http://www.944racing.de/wheelweights.php

Glaston

Original Poster:

58 posts

190 months

Wednesday 21st April 2021
quotequote all
ras62 said:
Before looking at dampers you should look at your wheel / tyre choice. Go down to 17 inch and up a profile on the tyre. Also the Ruf wheel is very heavy. Using a lighter 17 wheel can save you 3-4kg on each wheel which makes a huge difference to how the spring/damper works and also livens up the performance to a surprising degree.
It’s a very valid point. I noticed how heavy there were when I was messing about with car earlier in the week. The problem however is that the springs and gatters are rusty/split so need to be changed anyway, in which case I might as well do the struts at the same time.

Ref wheels, I do have a mint set of 16” Cups, but not what I am looking for, and set of original 17” Fuchs (which I quite fancy), will cost me over £2400.

Orangecurry

7,421 posts

206 months

Wednesday 21st April 2021
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What colour is the car?

If I were you, I'd source some BBS Sport Classics, in 17" not the SC2 in 18". They are OE, strong, and very lightweight. They also look great on 964s. There's a set on the bay that need painting, but very cheap to start with, so even after the cost of a pro-refurb they will still have 'value'.

Glaston

Original Poster:

58 posts

190 months

Wednesday 21st April 2021
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The car is black. But not a fan of the BBS classics, as they are a bugger to keep clean, but it still doesn’t fix the issues of the 30 year old suspension.

I do have a old RUF suspension in garage, but I haven’t fitted it because I think it might be no different to what is currently on the car, except less rusty.

Armitage.Shanks

2,274 posts

85 months

Wednesday 21st April 2021
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When I was looking several years ago I had a chat with Centre of Gravity and they suggested for mainly road use Koni FSD with (I think) Eibach springs were a good choice.

Slippydiff

14,815 posts

223 months

Wednesday 21st April 2021
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ras62 said:
Before looking at dampers you should look at your wheel / tyre choice. Go down to 17 inch and up a profile on the tyre. Also the Ruf wheel is very heavy. Using a lighter 17 wheel can save you 3-4kg on each wheel which makes a huge difference to how the spring/damper works and also livens up the performance to a surprising degree.
This ^ It'll totally transform the car along with the way it drives and give it some much needed compliance into the bargain.
The Ruf rims are boat anchors.

Nothing wrong aesthetically with RS ride height, but any additional suspension travel will improve compliance ...

For road use I'd be trying these : http://www.carnewal.com/products/964/p64017/Bilste...

or these :

http://www.carnewal.com/products/964/p64013/Bilste...

n12maser

580 posts

92 months

Thursday 22nd April 2021
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Orangecurry said:
What colour is the car?

If I were you, I'd source some BBS Sport Classics, in 17" not the SC2 in 18". They are OE, strong, and very lightweight. They also look great on 964s. There's a set on the bay that need painting, but very cheap to start with, so even after the cost of a pro-refurb they will still have 'value'.
These are what I'm running, they don't look half as pretty as my 18" turbo twists (hollows) but the ride on our stty roads is transformative + agree the car feels faster at least based on butt dyno smile

Orangecurry

7,421 posts

206 months

Thursday 22nd April 2021
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Glaston said:
The car is black. But not a fan of the BBS classics, as they are a bugger to keep clean, but it still doesn’t fix the issues of the 30 year old suspension.
I think people are suggesting you do both; as even with perfect suspension, the RUFs prove you canna change the laws of physics.

Personally I think the 964 doesn't suit much earlier or much later wheels, but hey. If cleaning is a worry, I'd source some D90s for winter, and really make friends with gravity.

EFClarity

Edited by Orangecurry on Thursday 22 April 08:38

Orangecurry

7,421 posts

206 months

Thursday 22nd April 2021
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n12maser said:
These are what I'm running, they don't look half as pretty as my 18" turbo twists (hollows)
Weirdo. hehe

Blib

44,014 posts

197 months

Thursday 22nd April 2021
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Slippydiff said:
For road use I'd be trying these : http://www.carnewal.com/products/964/p64017/Bilste...
I have these fitted to my C4. They're an excellent choice for road use, imo.

I bought them from Carnewal too. A good company to deal with.

ffc

611 posts

159 months

Sunday 25th April 2021
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Armitage.Shanks said:
When I was looking several years ago I had a chat with Centre of Gravity and they suggested for mainly road use Koni FSD with (I think) Eibach springs were a good choice.
I did this from standard (knackered dampers). The real transformation came about after Centre Gravity set it up, highly recommended.