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I want to replace front FK coilovers, but with ? #698083
27/10/2008 11:27
27/10/2008 11:27

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Stuartl
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I could do with some good advice because with being away from Coupes for a while I'm sort of out of touch with the best way to go.

The car (20vt LE)is fitted with FK coilovers at the moment but if I'm honest I'm not struck on them for everyday use so I'd like to replace them but as the heading says, what with though.
The back ones are fine so I'm happy for them to stay which creates a little problem. If I put standard dampers on the front with standard springs, I suspect the car will sit to high at the front. Therefore lowered springs look to be on the cards.
Now how low springs do I go for and what make. What dampers do I go for and again what make. And were's the best place these days to get them.

I'm looking for sort of a standard feel but not to soft if that makes any sense.

Hope someone can help save me a bit of searching and time.

Re: I want to replace front FK coilovers, but with ? [Re: ] #698090
27/10/2008 11:38
27/10/2008 11:38
Joined: Sep 2006
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west bromwich
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coupedummy Offline
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Posts: 8,960
west bromwich
bisteins as in group buy with standard spring,complete package front and rear.good for day to day general road use and improved on standard kit £365 delivred for bilsteins


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Re: I want to replace front FK coilovers, but with ? [Re: coupedummy] #698603
28/10/2008 10:47
28/10/2008 10:47

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Stuartl
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I take it that would bring the car back up to standard height.
It's only the front end thats bugging me as it bounces over bumps as though the spring is acting as the rebound rather than the damper.
I do like the lower look.

Re: I want to replace front FK coilovers, but with ? [Re: ] #698911
28/10/2008 18:30
28/10/2008 18:30

N
Neal
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Presumably you've played with the damping settings on the FKs?

I can recommend the Bilsteins too - Eibach lowering springs are a very popular choice, especially when combined with the Bilsteins. Perhaps fit front bilsteins and Eibach springs all round?

Re: I want to replace front FK coilovers, but with ? [Re: ] #699084
28/10/2008 23:33
28/10/2008 23:33

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Stuartl
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Stuartl
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No now if I'm honest I only got the car home last Thursday and it hasn't stopped tipping down since so I haven't looked at playing with the settings.

Re: I want to replace front FK coilovers, but with ? [Re: ] #699181
29/10/2008 10:25
29/10/2008 10:25
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Jimbo Offline
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The standard FK's don't have any settings to play with except ride height. FK's are famous for the bouncy ride your suffering with and unfortunately its the same with most uprated springs, the firmer spring will rebound much quicker so unless your rebound damping is uprated then it will feel quite bouncy.

Standard springs and Billys work really well if you can live with the ride height. Eibach springs and Billys is another option if you want it lower - but again it will be a little more choppy although nowhere near as bad as FK's.

Unfortunately, you cant go lower without going firmer unless you spend lots of money.

Re: I want to replace front FK coilovers, but with ? [Re: Jimbo] #699192
29/10/2008 10:49
29/10/2008 10:49

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 Originally Posted By: Jimbo
The standard FK's don't have any settings to play with except ride height. FK's are famous for the bouncy ride your suffering with and unfortunately its the same with most uprated springs, the firmer spring will rebound much quicker so unless your rebound damping is uprated then it will feel quite bouncy.


Oops, sorry my bad - forgot I have the rebound adjustable (Konigsport) kit on my Alfa rather than the standard FKs




Re: I want to replace front FK coilovers, but with ? [Re: ] #699202
29/10/2008 11:22
29/10/2008 11:22

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h2ypr
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I used the stnd 80nm springs for a while and it was far too bouncy.

I uprated to 100nm springs and it was much better!!

Ross

Re: I want to replace front FK coilovers, but with ? [Re: ] #699406
29/10/2008 17:29
29/10/2008 17:29
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But very firm !!

Re: I want to replace front FK coilovers, but with ? [Re: Jimbo] #699677
30/10/2008 01:29
30/10/2008 01:29
Joined: Dec 2005
Posts: 1,576
Glasgow,Near Florence..If only...
paul Offline
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Glasgow,Near Florence..If only...
 Originally Posted By: Jimbo
But very firm !!


errr VERY firm no /yes \:\)


was Paul S,now just paul...Member since Oct 2000,Coupe may be FATALLY injured - :(oh no it's not smile
Re: I want to replace front FK coilovers, but with ? [Re: paul] #700662
31/10/2008 20:13
31/10/2008 20:13
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no/yes

Not unacceptable but I couldn't live with it like that.

Re: I want to replace front FK coilovers, but with ? [Re: Jimbo] #711131
20/11/2008 11:54
20/11/2008 11:54

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Stuartl
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After driving a mates coupe fitted with Eibach and standard shocks I've decided to go down the same route. His car was a Little firmer a nice height and nicely damped for daily use.
Ordered them off Alternative Autos so and they should be here next week sometime. When I get them I'll put up a report on fitting them over on my little site and once in will report on what the setup is like.
Thanks to everyone who took time to post to help me out.

Re: I want to replace front FK coilovers, but with ? [Re: ] #711194
20/11/2008 13:29
20/11/2008 13:29
Joined: Dec 2005
Posts: 8,417
Lightwater, Surrey
DaveG Offline
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I've got FK's too (I think, unless it was the other German outfit) and they're perhaps set a bit too low on my Coop, but didn't they come with the 100Nm spring as standard, with people changing to 80 or 90 as a better compromise, can't remember now \:\?


1996 Portofino 20vt & 2000 Pearl White Plus
1985½ & 2016 2017 Fiat 124 Spider + XF Sportbrake
Re: I want to replace front FK coilovers, but with ? [Re: DaveG] #712102
21/11/2008 20:05
21/11/2008 20:05

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yellow_coop
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Go with the eibach and Bilstein groupbuy, i found it to look good and be comefortable!

Re: I want to replace front FK coilovers, but with ? [Re: ] #713435
24/11/2008 10:32
24/11/2008 10:32

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peanuthead
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i went in lukes coop on sunday with kw coilovers on and the ride was much better than i thought it would be and doesn't feel as harsh as any coilovered cars i have been in

Re: I want to replace front FK coilovers, but with ? [Re: ] #715470
26/11/2008 16:54
26/11/2008 16:54

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gpb
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Just fitted FK's and have exactly the same problem, too bouncy at the front, would like to know what rate the standard FK front springs are, what to change them to and where to get them please ?
Or do I just scrap the FK's, forget about the £450 and go buy Koni's or Billies ?
Really quite depressed about it at the moment.... :-(

Re: I want to replace front FK coilovers, but with ? [Re: ] #715491
26/11/2008 17:19
26/11/2008 17:19
Joined: Dec 2005
Posts: 8,417
Lightwater, Surrey
DaveG Offline
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I'm gonna play with the ride height on my FK's and might go for Bravo top mounts to make it less crashy although I think my ride height is too low and Jimbo thinks I might be riding on the bump stops \:o especially at the front, but on the other hand it doesn't seem at all bouncy to me. Perhaps it will be if I raise the ride height?

When figuring out the ride height, I reckon a more precise measure is to look at the height of the top of the black bottom/centre sill at the front and rear edges each side, if you measure yours I'll measure mine...

IIRC the front shocks have two springs, the changeable one is FK 1768 as standard (the 80 Nm one) and others are available eg: 90 Nm (FK 1769?) and 100 Nm (FK 1700?)


1996 Portofino 20vt & 2000 Pearl White Plus
1985½ & 2016 2017 Fiat 124 Spider + XF Sportbrake
Re: I want to replace front FK coilovers, but with ? [Re: ] #715493
26/11/2008 17:20
26/11/2008 17:20
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FKs get quite a slagging on here, you should have asked a few people before forking out for them \:\(

The 100Nmm springs from FK will reduce the bouncing at the cost of a firmer ride.

Re: I want to replace front FK coilovers, but with ? [Re: Jimbo] #715720
26/11/2008 22:40
26/11/2008 22:40

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Matty
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90Nm springs work well.

Re: I want to replace front FK coilovers, but with ? [Re: ] #715869
27/11/2008 09:54
27/11/2008 09:54

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gpb
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Does anyone know if fitting the optional Koni inserts makes a significant improvement ? Would at least allow you to adjust the rebound...

Re: I want to replace front FK coilovers, but with ? [Re: ] #716243
27/11/2008 19:55
27/11/2008 19:55

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gpb
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gpb
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Any recommendations for where to buy suitable springs?
Are they 2.25 or 2.5 ? Would save me trying to measure mine...

Cheers

Re: I want to replace front FK coilovers, but with ? [Re: ] #719871
03/12/2008 13:07
03/12/2008 13:07

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gpb
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Has anybody tried a softer spring ? Strikes me that if the damper is not up to it, then it is more likely to cope with a softer spring, something slightly stiffer than standard for instance..... I'm gonna measure a standard spring and buy a comparable coil over to try it :-)

Re: I want to replace front FK coilovers, but with ? [Re: ] #721045
04/12/2008 16:47
04/12/2008 16:47
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The standard spring is progressive rate, you can't just buy a comparable coilover spring, you need to start looking at main and tender springs or main and progressive rate tenders to try and match it. Good luck, I've been playing with spring rates for a while, £2K later and I'm not there yet ;\)

Re: I want to replace front FK coilovers, but with ? [Re: Jimbo] #721821
05/12/2008 13:35
05/12/2008 13:35

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gpb
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Thanks Jimbo, I appreciate your advice, just trying to salvage something from the situation, probably end up buying Bilsteins in the end like I should've done in the first place

Re: I want to replace front FK coilovers, but with ? [Re: ] #722555
06/12/2008 19:41
06/12/2008 19:41

S
Stuartl
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Stuartl
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Ok I got to the bottom of why the front of the car has been bouncy,, BOTH the front FK's are knackered !!! completely shot.

I have now fitted Monroe dampers all round with Eibach 30mm lower front springs and kept the FK springs on the rear. The setup's perfect for me. Firmer for when I want a bit of spirited driving but on the right side of comfortable for everyday use.

Must admit I'm well pleased with the result. I'll be posting photo's etc over on my site about how I changed everything.

Thanks to everyone though that offered advice it was greatly appreciated

Re: I want to replace front FK coilovers, but with ? [Re: ] #722588
06/12/2008 21:08
06/12/2008 21:08

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gpb
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Hey Stuart, I'd be interested to know what a set of Monroe dampers cost and perhaps where you got them ?

Cheers

Re: I want to replace front FK coilovers, but with ? [Re: ] #722679
07/12/2008 00:42
07/12/2008 00:42

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Stuartl
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 Originally Posted By: gpb
Hey Stuart, I'd be interested to know what a set of Monroe dampers cost and perhaps where you got them ?

Cheers


I got them from Steve at Alternative Autos http://www.alternativeautos.co.uk/

price list is on the site. Really nice people to deal with.

Re: I want to replace front FK coilovers, but with ? [Re: ] #723563
08/12/2008 19:27
08/12/2008 19:27

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cosmograph
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 Originally Posted By: gpb
Does anyone know if fitting the optional Koni inserts makes a significant improvement ? Would at least allow you to adjust the rebound...


Yes, it won't.

One of the problems with the FKs is that they have bugger all compression damping. The Koni inserts are even worse IMO. Even as new the piston rod would rod would just fall into the casing. Probably why Stuart thinks his are knackered. No, they are all like that.

You can mask the problem by fitting beefier front springs but effectively they were never designed properly in the first place. The mild steel casings rust to shIt in a few thousand miles anyway.

Bilstein B6's are much better either with standard or Eibach springs.




Re: I want to replace front FK coilovers, but with ? [Re: ] #723778
09/12/2008 00:31
09/12/2008 00:31

S
Stuartl
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Mine definately had the oil or something seaping out. They reside in the local skip now. I kep the springs out of them though if anyone wants them.

Re: I want to replace front FK coilovers, but with ? [Re: ] #724090
09/12/2008 15:01
09/12/2008 15:01

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Nobby
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 Originally Posted By: cosmograph
Even as new the piston rod would rod would just fall into the casing. Probably why Stuart thinks his are knackered. No, they are all like that.


I'm confused. Do you mean that by fitting the Koni inserts into FK struts that the Koni inserts aren't secured? The FK struts have a screw cap on the top to hold the inserts in (I even removed mine and cleaned it all out).

Chris

Last edited by Nobby; 09/12/2008 15:02.
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