BC Gold Spring advice for a daily driver

E28 technical advice asked and given! Troubleshooting, modifications and more.
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nelson9879
Posts: 56
Joined: Dec 16, 2008

BC Gold Spring advice for a daily driver

Post by nelson9879 »

Hi,
I bought a set of coilovers second hand for my car and they are way too heavily sprung.

Fronts - 62 160 010 ... Im guessing this is a 160mm long 10kg spring?
Rears - 62 180 008 ... Im guessing this is a 180mm long 8kg spring?

It bounces down the road and driving into a driveway is a horrible affair, but I do like the ride height. I have considered going back to lowered springs but I have these now so replacing the springs is easier than switching back.

If someone could give me some advice on what will be as close to a sport feel it would be help.
Possibly a 6kg 160mm front and 4kg 180mm rear? This is about as close as I think i can get in a BC Gold coil spring?
LeiseyJr
Posts: 1566
Joined: Dec 22, 2013
Location: Houston,Tx

Re: BC Gold Spring advice for a daily driver

Post by LeiseyJr »

That is kindve rates I run, 10k is about a 550lb spring and 8k spring is a 450lb spring.

I run 10k and 7k, I have no bouncing issues on bilstein sports. How low are you? Have you messed with dampr adj, if they're bouncing stiffen them up. Sometimes bounce can be caused by a lack of rebound control.

Lowering springs are usually in the 2-300lb range, here's a converter
https://www.redline360.com/garage/sprin ... m-to-lbsin
epearce
Posts: 136
Joined: Feb 01, 2013
Location: Australia

Re: BC Gold Spring advice for a daily driver

Post by epearce »

Check your dampening adjustment, also check the preload on the spring in case that isnt correct.

Those spring rates should ride quite nicely, firm, but not excessive.

(I have those same rates in BC coilovers on both my cars)
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