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      11-23-2012, 08:56 PM   #89
Technic
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Quote:
Originally Posted by aussiem3 View Post
Hi Technic
Did you install E36 bump stops with the Eibachs or was it the stock one?
OEM bump stops in this E90 M3 and now the same Eibach/OEM bump stops combo again in my E92 M3 with ZCP.
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      11-24-2012, 12:09 AM   #90
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Thank you Technic for your prompt reply
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      11-24-2012, 09:39 AM   #91
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Quote:
Originally Posted by Technic View Post
OEM bump stops in this E90 M3 and now the same Eibach/OEM bump stops combo again in my E92 M3 with ZCP.
How much lower were the Eibachs vs. your stock ZCP set-up? Do you have a comparison pict?
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      11-24-2012, 01:45 PM   #92
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Originally Posted by S65NAPWR View Post
How much lower were the Eibachs vs. your stock ZCP set-up? Do you have a comparison pict?
100% lower at the front (20mm vs 10mm ZCP) and about 50% lower at the rear (15mm vs 10mm ZCP)... no pics, sorry.
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      11-24-2012, 01:51 PM   #93
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Quote:
Originally Posted by Technic View Post
100% lower at the front (20mm vs 10mm ZCP) and about 50% lower at the rear (15mm vs 10mm ZCP)... no pics, sorry.
Thanks. I was thinking H&Rs before but I know they bounce and don't ride properly vs. stock. How does the Eibach feel (new and now?) Seems like you've had it for a couple years now.
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      11-24-2012, 02:56 PM   #94
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Originally Posted by S65NAPWR View Post
Thanks. I was thinking H&Rs before but I know they bounce and don't ride properly vs. stock. How does the Eibach feel (new and now?) Seems like you've had it for a couple years now.
I've been using Eibach Pro Kits since 1990...

IMO, the Pro Kit version feel like OEM but lower; I think that it is their design purpose. If you want stiffer/lower then you may want the Racing Dynamics spring set.
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      11-24-2012, 02:59 PM   #95
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Quote:
Originally Posted by Technic View Post
I've been using Eibach Pro Kits since 1990...

IMO, the Pro Kit version feel like OEM but lower; I think that it is their design purpose. If you want stiffer/lower then you may want the Racing Dynamics spring set.
I don't necessarily need stiffer, just a spring that would match perfectly with struts as-is. Have you tracked your car with the Eibachs? How does it respond?
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      11-24-2012, 03:02 PM   #96
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Quote:
Originally Posted by S65NAPWR View Post
I don't necessarily need stiffer, just a spring that would match perfectly with struts as-is. Have you tracked your car with the Eibachs? How does it respond?
I did track my old E90 M3 twice on Eibachs and it was great for me, extremely planted and responsive. My limiting factor was the tires.
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      11-24-2012, 03:05 PM   #97
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Quote:
Originally Posted by Technic View Post
I did track my old E90 M3 twice on Eibachs and it was great for me, extremely planted and responsive. My limiting factor was the tires.
I might try that and see how it works for me. I want present DD comfort and the ability to use it on the track like an OEM set-up.

Worst case I go back to OEM and sell the springs.
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      11-24-2012, 05:16 PM   #98
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+1 for Eibach Pro-kit springs. I went with the Eibach's over H&R because of the OEM ride quality. I installed springs over a year ago and have 11 track days so far. The ride quality is the same as OEM springs, with no bouncing or harshness as with some lowering springs. They do not lower as much as H&R, but then trade off is OEM ride quality.
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      11-24-2012, 05:42 PM   #99
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Quote:
Originally Posted by ortho281 View Post
+1 for Eibach Pro-kit springs. I went with the Eibach's over H&R because of the OEM ride quality. I installed springs over a year ago and have 11 track days so far. The ride quality is the same as OEM springs, with no bouncing or harshness as with some lowering springs. They do not lower as much as H&R, but then trade off is OEM ride quality.
Thanks for sharing your experience.

Question, doesn't the car slightly dive in the turns upon hard braking given that it rakes the car forward. My issue with springs as well is the fact they lower the car more in the front than rear to improve the look / fill in the gap. Sleeve Kits can prevent this from happening.
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      11-25-2012, 12:55 AM   #100
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Quote:
Originally Posted by S65NAPWR View Post
Thanks for sharing your experience.

Question, doesn't the car slightly dive in the turns upon hard braking given that it rakes the car forward. My issue with springs as well is the fact they lower the car more in the front than rear to improve the look / fill in the gap. Sleeve Kits can prevent this from happening.
No, the change in rake does not cause more dive because lowering springs also have increased spring rates. The car squats, lean and dives less due to the slight increase in spring rate. The amazing thing about the Eibach springs is that the ride quality remains the same, due to use of progressive springs and not increasing the rate so much that the ride becomes bouncy. Here is one of my vids from last HPDE. The EDC was set to normal mode and you will notice the car remains quite level cornering, even under hard braking.

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      11-25-2012, 08:29 AM   #101
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Quote:
Originally Posted by ortho281 View Post
No, the change in rake does not cause more dive because lowering springs also have increased spring rates. The car squats, lean and dives less due to the slight increase in spring rate. The amazing thing about the Eibach springs is that the ride quality remains the same, due to use of progressive springs and not increasing the rate so much that the ride becomes bouncy. Here is one of my vids from last HPDE. The EDC was set to normal mode and you will notice the car remains quite level cornering, even under hard braking.

Thanks for the explanation and video! Great driving.
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      12-27-2012, 11:49 AM   #102
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Pic's are awesome, ordered the Prokit based on responses!
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      12-28-2012, 07:45 AM   #103
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Quote:
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Pic's are awesome, ordered the Prokit based on responses!
Enjoy, you'll love the eibachs
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      09-27-2014, 10:22 PM   #104
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Quote:
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The CSL replicas are gone... OEM ZHP rears in all four corners are in, and the car settled a little bit more since this thread was created (sorry for the photos quality, I had to resize the images):








After the springs settled, is the fender gap at the front more similar to the gap at the back? Please measure both and report back. I'm deciding between these and the Swift Spec-R springs. Since I have a steep driveway entrance and do not have EDC I'm thinking the Eibachs and E36 bump drops might be the ticket (more conservative drop and near stock feel). I have stock ZCP rims and stock tire size. Trying to decide between 18/15mm spacers and 15/12mm spacers... recommendations with the Eibach Pro-Kit and E36 bump stops?
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      09-27-2014, 11:02 PM   #105
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This is a 6 year old thread... this E90 M3 was sold 3+ years ago.

Quote:
Originally Posted by jagman View Post
After the springs settled, is the fender gap at the front more similar to the gap at the back? Please measure both and report back. I'm deciding between these and the Swift Spec-R springs. Since I have a steep driveway entrance and do not have EDC I'm thinking the Eibachs and E36 bump drops might be the ticket (more conservative drop and near stock feel). I have stock ZCP rims and stock tire size. Trying to decide between 18/15mm spacers and 15/12mm spacers... recommendations with the Eibach Pro-Kit and E36 bump stops?
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      09-27-2014, 11:48 PM   #106
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Some people keep their cars more than 6 years. I did not know you sold yours. Even though you sold it a while ago you probably have a pretty good idea how similar the gap was above the front and rear tires and how the springs settling affected the stance and dynamics.
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      09-28-2014, 02:30 PM   #107
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Gap is the same 3/4" or so after settling, front and rear. The thing about Eibach is that you will never look slammed, they look "OEM Lower".

Check other Eibach threads for accurate measurements, there are quite a few of those here...

Quote:
Originally Posted by jagman View Post
Some people keep their cars more than 6 years. I did not know you sold yours. Even though you sold it a while ago you probably have a pretty good idea how similar the gap was above the front and rear tires and how the springs settling affected the stance and dynamics.
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      10-03-2014, 09:52 AM   #108
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Eibach Pro Kit: 20mm front / 15mm rear
H&R Spacers: 15mm front / 12mm rear
18" 260m with 245/40/18 and 265/40/18 Pilot Sport

Shaved top mounts.
E36 bump stops.

EDC: Yes.
Difference in ride quality? Exactly the same as before.

Looks: Subtle like OEM, not slammed but much better than stock. Perfect!







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