To Eibach or not to Eibach? Advice appreciated

2003 - 2009, roadster, coupe, facelift
ben84
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To Eibach or not to Eibach? Advice appreciated

Post by ben84 » Thu Oct 12, 2017 10:49 am

Hi guys

Just had an mot failure for single front and rear broken springs plus anti roll bar links need replacing.

After some advice as to whether to re fit standard components or use this as an opportunity to upgrade.

Wouldn't mind a slight height drop but don't want to compromise the ride or ability to get over speed bumps!

I am also running 20mm spacers on the rear and 15mm on the front if that will contribute to any issues!

2004 E85 3.0

Thanks for your help in advance, ben

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Steve84N
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To Eibach or not to Eibach? Advice appreciated

Post by Steve84N » Thu Oct 12, 2017 11:02 am

It goes over speed bumps no problem but is harsher than standard.
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idej_jedi
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To Eibach or not to Eibach? Advice appreciated

Post by idej_jedi » Thu Oct 12, 2017 12:08 pm

You'll be fine with Eibachs - I've had no issues with speed bumps. The only issue I've had is with arch rub...but my front alloys were 8J (and 8.5J is the better fit).

On the plus side I did notice the handling was improved. Not hugely, but enough for me to raise an eyebrow + it looks cooler lowered as well. ;)
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mr wilks
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To Eibach or not to Eibach? Advice appreciated

Post by mr wilks » Thu Oct 12, 2017 12:14 pm

My 10 x Z4s

E86
E85
Grey///MR
3.0Si E85
E89 23i
3.0Si E85
E86
3.0Si E85
Imola///MR
current 35i Msport 6spd :driving:


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ben84
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To Eibach or not to Eibach? Advice appreciated

Post by ben84 » Thu Oct 12, 2017 12:28 pm

Thanks for your input guys, think I am going to go with the eibachs, £143 including delivery so pretty reasonable. FK's are a fair bit cheaper at £89 but im guessing there is a reason for that.

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ph001
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To Eibach or not to Eibach? Advice appreciated

Post by ph001 » Thu Oct 12, 2017 12:32 pm

You will be happy with the Eibachs I think. I don't find them crashy at all.
2007 E85 Z4 3.0Si manual :driving:
19" CSL's | Eibach Springs | Aeroskirts | Z4M front bumper | Clear brake light | ZHP | RCH+| Stubby

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To Eibach or not to Eibach? Advice appreciated

Post by hopz121 » Thu Oct 12, 2017 1:08 pm

You may need new shocks OP too so check them at the same time.

If you do id recommend going for Bilstein B8 shocks :thumbsup:
Now - 2004 BMW E46 M3 3.2 Manual Coupe, Silver Grey :D
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Steve84N
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To Eibach or not to Eibach? Advice appreciated

Post by Steve84N » Thu Oct 12, 2017 1:14 pm

idej_jedi wrote:
Thu Oct 12, 2017 12:08 pm
The only issue I've had is with arch rub...but my front alloys were 8J (and 8.5J is the better fit).
Is that a typo?

8J fits better on the whole in the front but the real issue is offset. You need a higher offset on an 8.5 to avoid rubbing than you do on an 8.
3.0si Coupe | Quaife Torsen | B12 | H&R ARBs | Vibratech Engine Mounts | Weichers Strut Brace | 10mm Spacers | Z4M LCA Bushes | RTAB Limiters | Grom USB3
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https://tinyurl.com/yac7sxfv

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To Eibach or not to Eibach? Advice appreciated

Post by Chris1981 » Thu Oct 12, 2017 2:16 pm

Lowered springs all the way for me... they supposedly don't have the same tenancy to crack as OEM springs do, combined with improved look and handling!

I fitted H&R springs on mine which I believe are slightly lower than the Eibachs.... I won't lie it is pretty damn low and i do have to take speed bumps with care but totally manageable and the improvement in handling was instant!

As already mentioned it would be highly recommended to change the shocks if lowering, I bought just springs and found out the drivers side rear shock was completely blown so have since upgraded to Bilstein B6's... in hindsight buying the complete B12 kit (eibachs and B8 shocks) would have been the most cost effective but was too eager to lower mine as the moron who owned it before me had SE springs on the rear and M-Sports on the front but I didn't have the £700 a complete kit costs so have done it piece meal over the past few months! :headbang:

Bilstein B6's or B8's have improved damping rate to suit the lower firmer springs! B8's are shorter so ideal for lowered cars, but B6's have the same characteristics as B8 without being shorter so will allow for the car to be returned to standard height at a later date should you wish!?

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To Eibach or not to Eibach? Advice appreciated

Post by idej_jedi » Thu Oct 12, 2017 3:38 pm

Steve84N wrote:
Thu Oct 12, 2017 1:14 pm
idej_jedi wrote:
Thu Oct 12, 2017 12:08 pm
The only issue I've had is with arch rub...but my front alloys were 8J (and 8.5J is the better fit).
Is that a typo?

8J fits better on the whole in the front but the real issue is offset. You need a higher offset on an 8.5 to avoid rubbing than you do on an 8.
I would have to check the offsets to be 100% sure.
BMW Z4 Coupe 3.0si (Instagram: @idej_z4)

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ben g
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To Eibach or not to Eibach? Advice appreciated

Post by ben g » Thu Oct 12, 2017 3:48 pm

idej_jedi wrote:
Thu Oct 12, 2017 3:38 pm
Steve84N wrote:
Thu Oct 12, 2017 1:14 pm
idej_jedi wrote:
Thu Oct 12, 2017 12:08 pm
The only issue I've had is with arch rub...but my front alloys were 8J (and 8.5J is the better fit).
Is that a typo?

8J fits better on the whole in the front but the real issue is offset. You need a higher offset on an 8.5 to avoid rubbing than you do on an 8.
I would have to check the offsets to be 100% sure.
The offset is the ET number of the wheel. 8j/8.5j refers to the width of the alloy. 1J is 1 inch. I think you're getting them confused.
Red Soft-top Sterling grey 3.0i - Z4M Front, Eibachs, Polybushed, Clear headlights, Quad clear spot rear lights, Sport MFSW, ZHP, Gaptech RCH, Strut Brace.

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mr wilks
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To Eibach or not to Eibach? Advice appreciated

Post by mr wilks » Thu Oct 12, 2017 4:08 pm

ben g wrote:
Thu Oct 12, 2017 3:48 pm
idej_jedi wrote:
Thu Oct 12, 2017 3:38 pm
Steve84N wrote:
Thu Oct 12, 2017 1:14 pm

Is that a typo?

8J fits better on the whole in the front but the real issue is offset. You need a higher offset on an 8.5 to avoid rubbing than you do on an 8.
I would have to check the offsets to be 100% sure.
The offset is the ET number of the wheel. 8j/8.5j refers to the width of the alloy. 1J is 1 inch. I think you're getting them confused.
Dan's (idej_jedi) problem iirc was also he initially had 235 35 19 tyres on a 8j rim with low offset (et35ish ?? ) & lowered .
Problem cured with 215 35 19 rubber on the 8js & again now on 8.5js with slightly higher offsets
My 10 x Z4s

E86
E85
Grey///MR
3.0Si E85
E89 23i
3.0Si E85
E86
3.0Si E85
Imola///MR
current 35i Msport 6spd :driving:


Image
https://www.instagram.com/andybmwheels/

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idej_jedi
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To Eibach or not to Eibach? Advice appreciated

Post by idej_jedi » Thu Oct 12, 2017 4:46 pm

ben g wrote:
Thu Oct 12, 2017 3:48 pm
idej_jedi wrote:
Thu Oct 12, 2017 3:38 pm
Steve84N wrote:
Thu Oct 12, 2017 1:14 pm

Is that a typo?

8J fits better on the whole in the front but the real issue is offset. You need a higher offset on an 8.5 to avoid rubbing than you do on an 8.
I would have to check the offsets to be 100% sure.
The offset is the ET number of the wheel. 8j/8.5j refers to the width of the alloy. 1J is 1 inch. I think you're getting them confused.
I know what the J is...
BMW Z4 Coupe 3.0si (Instagram: @idej_z4)

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ben g
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To Eibach or not to Eibach? Advice appreciated

Post by ben g » Thu Oct 12, 2017 6:10 pm

idej_jedi wrote:
Thu Oct 12, 2017 4:46 pm
ben g wrote:
Thu Oct 12, 2017 3:48 pm
idej_jedi wrote:
Thu Oct 12, 2017 3:38 pm


I would have to check the offsets to be 100% sure.
The offset is the ET number of the wheel. 8j/8.5j refers to the width of the alloy. 1J is 1 inch. I think you're getting them confused.
I know what the J is...
Your previous reply insinuated you didn't, that's all. Now mr wilks has explained it, it makes sense now :thumbsup: calm down :lol:
Red Soft-top Sterling grey 3.0i - Z4M Front, Eibachs, Polybushed, Clear headlights, Quad clear spot rear lights, Sport MFSW, ZHP, Gaptech RCH, Strut Brace.

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dhobbs
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To Eibach or not to Eibach? Advice appreciated

Post by dhobbs » Thu Oct 12, 2017 8:15 pm

I have the b12 kit and I do find them crashy compared to standard. The lowered look I like and the handling is so much better (but then my shocks were knackered).
3.0si roadster. Requisite stubby. Sound gen mod. LED numberplate lights. LED boot strip. Interior lights LED too. Dension. ZHP gearknob. Daily drive :driving:
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