05-07-02, 11:25 AM
I have been seraching for a good suspension upgrade for the c900 for some time now. The problem seems to be that all the available sports springs only make the car marginally stiffer, just about 30 percent or so.
Does some of you have springs that are hard enough for serious track driving?
I know I can get racing shock absorbers from Bilstein (you can order these for Saabs at Speedparts), but where do I get springs that are hard enough without making wheel arch modifications necessery?
A fully adjustable suspension is available as found in Finnish 900 Turbo Cup cars, but that drops ride height way too much for the car to be usable on the road.
05-07-02, 12:14 PM
Sounds like your best bet would be to get a bespoke set-up made if you cant find anything suitable, i would bet that what you find to be good on the track would always be a compromise on the road and vice-versa.
I used to have a fully (height and damping) adjustable suspension kit by Koni on my Mk1 16valve Golf and whilst it was brilliant on the track and smooth roads it was a pig day to day even on its softest setting.
I really think your fighting a losing battle and a compromise is always the best bet, i think the Abbott springs on my Aero are borderline in terms of harshness for the road but even these would be a compromise for the track.
Good luck! :smile:
05-07-02, 12:28 PM
The 'sports' springs on mine are supposedly about 30% stiffer than stock and are really only comfortable on the smoothest new tarmac. On any rough road they are simply a pain!
05-07-02, 02:10 PM
I'm actually not concerned about comfort - ride quality isn't an objective, performance is :smile:
The only trouble with the "Cup" suspension is that it's too low - stiffness is just right (= stiff as hell). Height becomes a problem with speed bumps and bad gravel roads, like the one that leads to my home.
No, I really want a hard core suspension, but it must not be as low as to make ground clearance impossibly low for road use.
And winter driving would really be a problem is the bottom of the car always scrapes with snow and ice...
05-07-02, 02:10 PM
Geez and you guys are complaining. Over here they haven't even heard of road maintainance. Half the roads have metal plates sticking up and the freeways are just raked concrete. I was in England a week ago and saw all these roadworks on the M6 (I think) and I was wondering why on earth they were resurfacing a perfectly good road.
05-07-02, 06:56 PM
americans are lazy, we wait until we truly "need" it
I have made 1 set up for the classic 900 that allows for ride heigth adjustment and to in stall spring with rates of 500 pounds per inch to 1200 pound per inch. Currently we are running 500# front and 650# rear for day to day driving works great will most likely go to 600# fronts and 750 or 700# rears. We also have spacers that go between the coil in rates of 25#,50# and 75# for fine tuning and track days. We will work on the second prototype next week.
06-07-02, 07:39 PM
i would like to know more about you suspension set ups / or kits
06-07-02, 07:44 PM
i autocrossed on the 4th with new goodrich g-force drag radials 205-50-15 and nearly wore the fronts bald in 6 runs where the rears look almost new . i need help in the suspension dept.
We have made adjustable spring mounts for the car side of the spring. To adjust the rear ride height the suspension has to be hanging down so the car has to be jackedup. You screw a threaded collar up or down to change the ride height. On the front you take a 1/2" extesion and rachet to turn a bolt to raise or lower the front, the hood is open for this. the range of low to high is a 3" travel at the wheel. Springs come in 50# steps so you can try different ones to make the car to you liking, If you want the back stiff to remove the push just chose a stiffer spring.It is hard to say more and stay in the rules of this board as it is something that will be offered for sale.
06-07-02, 11:24 PM
I think we're all interested enough. I'm sure the admins won't mind :smile:
What information would you like.
go to aa proper racing suspension specialist and have tthem set your car up for you..
If you are serious about track work you will realise stiffness is not the absolute be all and end all to suspension setup.
It must be balanced with other handling factors. Get somebody who rreally knows their stuff to spend the time setting your car up well.
you will not be disapointed...