View Full Version : GC/Eibach ERS springs 300lb/450lb


todor
03-30-2007, 09:21 PM
EDIT: All 4 springs are sold

These springs are FOR USE WITH COILOVERS (Ground Control or others) so don't even ask if they'll fit a specific model of car or how much they'll lower it. These are Eibach Race Springs (ERS) made for Ground Control (came from a GC coilover kit) with the following dimensions:

Pair of 150.64.53 - 5.9in tall (150mm), 2.5in inner diameter (64mm), 300lb/in spring rate (53kg/cm) - SOLD
Pair of 0700.225.450 - 7in tall, 2.25in inner diameter, 450lb/in spring rate - SOLD

Asking $85 shipped for each pair or $160 shipped for all 4.

This is a very nice setup for street/light-track cars. My E36 M3 handles great with them, but I'm turning it into a more track-oriented car and getting firmer springs. These ones here are a very good compromise for a street-driven E36. I don't know how they behave on a non-E36 chassis - they may effectively be stiffer or softer depending on the suspension setup.

These are constant-rate springs, which can't even be compared to the progressive-rate ones that you find in the stock suspension and the various aftermarket lowering springs from Eibach, H&R, etc.

todor
04-13-2007, 02:19 PM
These are still available
Let's say $85 shipped per pair or $160 shipped for all 4.

JongEXR
04-15-2007, 09:49 PM
is it going to fiy 1993 325i? and do you have any pics pls let me know or pm me back asap thanks

todor
04-15-2007, 09:54 PM
is it going to fiy 1993 325i? and do you have any pics pls let me know or pm me back asap thanks
Do you have coilovers? if so, these will fit if your coilovers take 2.5" ID fronts and 2.25" ID rears. But yes, these are appropriate for use on a E36 body. Read my first post.

NHbmw325I
04-15-2007, 09:57 PM
Do you think these would be stiff enough for auto-x'ing and the odd track day? I might be getting a 325 coupe very soon. I realize what else would be needed besides these springs.

todor
04-15-2007, 10:05 PM
Do you think these would be stiff enough for auto-x'ing and the odd track day? I might be getting a 325 coupe very soon. I realize what else would be needed besides these springs.
well they certainly handle a lot better than the stock springs...
still, the spring rates are more street-oriented, but are not bad on the track either. i'm doing more extensive tracking now though, so that's why i'm replacing these with stiffer springs.
if I remember correctly, the stock spring rate on the M3 is something like 80lb for the first inch and then gets up to around 250lb if you compress it more (stock springs are progressive-rate springs). these ones (ERS) start out at 300lb in the front and 450 in the back and remain at that rate regardless of how much you compress them.

NHbmw325I
04-15-2007, 10:19 PM
thats interesting i'll have to look into this some more, and make sure I get the coupe.

PTGM3
06-19-2007, 04:22 PM
Did you ever sell these? I am looking for the 450lb springs. Please let me know.

put

dean325is

over at hotmail.com for my mail and I will get back to you ASAP, I can pay today, will need shipping to meet me in CO for a track event.

Thanks,

Sean L

todor
06-19-2007, 08:47 PM
Did you ever sell these? I am looking for the 450lb springs. Please let me know.

put

dean325is

over at hotmail.com for my mail and I will get back to you ASAP, I can pay today, will need shipping to meet me in CO for a track event.

Thanks,

Sean L
Sent you an email. All 4 springs are available as of now.

todor
06-22-2007, 01:24 AM
All 4 springs are still available. Already off of my car, boxed and ready to ship. $85 shipped per pair or $160 shipped for the full set.

Haven't heard back from PTGM3... so until further notice, all 4 are available.

todor
07-07-2007, 06:26 AM
Bump... still available.

todor
07-16-2007, 02:05 PM
bump

SG_M3
07-17-2007, 01:21 AM
i'll take the 7" 450's. paypal?

todor
07-17-2007, 01:53 AM
i'll take the 7" 450's. paypal?
sent you a PM

todor
07-17-2007, 02:20 AM
The 450s are sold! Thanks Sean.

todor
07-17-2007, 08:29 PM
The other pair (300lb) is sold as well. Thanks everyone.

todor
07-17-2007, 08:29 PM
and all 4 shipped out today.