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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Coilovers or springs/shocks



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      08-10-2008, 01:29 AM   #1
camaross305
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Coilovers or springs/shocks

Right now my car is stock with the "sport" suspension. Im thinking of either KW v1 or v2 coilovers or H and R springs with koni yellows for my e92. I never go to the track and i want to lower my car slightly and have some improved handling without compromising ride quality. For a daily driver, which route should i go? the coilovers are only 100-150$ bucks more than a spring/shock set. Which one out of the two, coilovers and springs/shocks has a better ride quality?
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      08-10-2008, 05:05 AM   #2
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Quote:
Originally Posted by camaross305 View Post
Right now my car is stock with the "sport" suspension. Im thinking of either KW v1 or v2 coilovers or H and R springs with koni yellows for my e92. I never go to the track and i want to lower my car slightly and have some improved handling without compromising ride quality. For a daily driver, which route should i go? the coilovers are only 100-150$ bucks more than a spring/shock set. Which one out of the two, coilovers and springs/shocks has a better ride quality?
I'll throw it out there, the coilovers are about 3-400 more than springs/shocks, and then consider that typical install price (unless you do it yourself) is twice as much for coilovers than spring/shocks (at least in my case thats what I was quoted)

I got koni FSD/Eibach a day ago...and heres what I think:

This car is my daily driver, so I was looking for a moderate drop, without losing ride quality and to pick up some handling. What I got...the car feels SO smooth on regular roads now. All the little imperfections no longer feel jarring. When you finally lay into a turn, it just bites in and goes as you like (vs ZSP). I'm VERY happy with the FSD/eibach combo, I got exactly what I wanted for a car I'm going to be driving every single day. Significantly better ride quality, and a fair amount sportier handling with a sexy but non-slammed drop

I'd highly recommend this combo, as Ive heard the hr sport and koni yellow is a bit more harsh in comparison, and I couldnt really imagine more harsh than zsp for a daily driver...so this makes me immensely happy. From what ive read, FSD's are amazing shocks, and so far, theyre proving to be that way

Cheers
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      08-10-2008, 09:15 AM   #3
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Which eibach did u get the prokit? I was thinking about eibach too but I thought h and r was better quality.
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      08-10-2008, 12:09 PM   #4
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I will be going with the H&R sport + Koni yellows. I track the car occasionally, the reason for choosing H&R sport and not H&R race. FWIW the konis are adjustable, Only the rears need to be taken out to adjust. However, I do not expect to make changes once installed.
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      08-10-2008, 04:03 PM   #5
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Originally Posted by camaross305 View Post
Which eibach did u get the prokit? I was thinking about eibach too but I thought h and r was better quality.
I went with the prokit and the koni FSD's

I dont think the HR is better quality. I would say both are high quality and on par with each other. From what Ive read, you will have better ride quality with the FSD/eibach kit than you would with the HR/koni yellow. The HR/koni yellow will be a harsher ride in comparison. The FSD's are amazing shocks, and yes, they're not adjustable, but like a lot of people, I have no intentions of adjusting, I just want it to be correct at the beginning, and be done with it
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      08-10-2008, 04:39 PM   #6
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Quote:
Originally Posted by Vudoo4u2 View Post
I'll throw it out there, the coilovers are about 3-400 more than springs/shocks, and then consider that typical install price (unless you do it yourself) is twice as much for coilovers than spring/shocks (at least in my case thats what I was quoted)

I got koni FSD/Eibach a day ago...and heres what I think:

This car is my daily driver, so I was looking for a moderate drop, without losing ride quality and to pick up some handling. What I got...the car feels SO smooth on regular roads now. All the little imperfections no longer feel jarring. When you finally lay into a turn, it just bites in and goes as you like (vs ZSP). I'm VERY happy with the FSD/eibach combo, I got exactly what I wanted for a car I'm going to be driving every single day. Significantly better ride quality, and a fair amount sportier handling with a sexy but non-slammed drop

I'd highly recommend this combo, as Ive heard the hr sport and koni yellow is a bit more harsh in comparison, and I couldnt really imagine more harsh than zsp for a daily driver...so this makes me immensely happy. From what ive read, FSD's are amazing shocks, and so far, theyre proving to be that way

Cheers
How did your drop turn out? Is it relatively even front/rear? Just curious because I've seen a couple where the rear dropped more than the front and it looked like crap. -TMc
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      08-10-2008, 04:59 PM   #7
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Quote:
Originally Posted by Vudoo4u2 View Post
I'll throw it out there, the coilovers are about 3-400 more than springs/shocks, and then consider that typical install price (unless you do it yourself) is twice as much for coilovers than spring/shocks (at least in my case thats what I was quoted)

I got koni FSD/Eibach a day ago...and heres what I think:

This car is my daily driver, so I was looking for a moderate drop, without losing ride quality and to pick up some handling. What I got...the car feels SO smooth on regular roads now. All the little imperfections no longer feel jarring. When you finally lay into a turn, it just bites in and goes as you like (vs ZSP). I'm VERY happy with the FSD/eibach combo, I got exactly what I wanted for a car I'm going to be driving every single day. Significantly better ride quality, and a fair amount sportier handling with a sexy but non-slammed drop

I'd highly recommend this combo, as Ive heard the hr sport and koni yellow is a bit more harsh in comparison, and I couldnt really imagine more harsh than zsp for a daily driver...so this makes me immensely happy. From what ive read, FSD's are amazing shocks, and so far, theyre proving to be that way

Cheers

Having mine installed tomorrow .......

Thanks for the post!
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      08-10-2008, 05:40 PM   #8
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as far as the level of drop front/rear...I would say that it looks perfect to my taste...I think most regular non scrutinizing public might not pick up on the fact that the car is dropped because it just looks like there's pretty much very little wheelgap left...doesn't look slammed, just as it should be from the factory with a sport package...the front/rear both look even and not out of place...I'd say it keeps the factory front/rear visual ratio in tact(rear ever so slightly less gap than front
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      08-10-2008, 06:09 PM   #9
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Quote:
Originally Posted by mnkybiznes View Post
Having mine installed tomorrow .......

Thanks for the post!

Let me know what you think!
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      08-10-2008, 06:11 PM   #10
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Quote:
Originally Posted by Vudoo4u2 View Post
Let me know what you think!
Definitely will post my overall impression ......
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      08-10-2008, 09:02 PM   #11
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well thanks for the input guys. At first I was thinking coilovers now I'm leaning toward eibach/fsd instead of yellows and h and r.
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      08-10-2008, 09:08 PM   #12
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The install on coilovers is far easier then shock and springs anyday. No sping compressor ftw!
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      08-10-2008, 09:13 PM   #13
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Quote:
Originally Posted by ThepowerofM View Post
The install on coilovers is far easier then shock and springs anyday. No sping compressor ftw!
thats only if the coilovers comes with the top mounts
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      08-10-2008, 09:17 PM   #14
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Quote:
Originally Posted by camaross305 View Post
well thanks for the input guys. At first I was thinking coilovers now I'm leaning toward eibach/fsd instead of yellows and h and r.
The FACT that Lamborghini uses the Koni FSD as oem equipment is reassuring as well.
If I was going to track it ALL THE TIME then I would look at the H/R. This is a daily driver for me though.

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      08-10-2008, 10:49 PM   #15
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Originally Posted by mnkybiznes View Post
The FACT that Lamborghini uses the Koni FSD as oem equipment is reassuring as well.
If I was going to track it ALL THE TIME then I would look at the H/R. This is a daily driver for me though.

As far as performance on a track...given, this is all just from what Ive read on this forum (and Ive probably spent a few hours too many doing it)...the koni fsd/eibach should not perform any less competently on a track than the hrsport/yellow combo. Its just that FSD's are a higher end shock overall (from koni), and being that the hr sport and eibach pro kit are very comparable (drop heights are similar, and spring rates as well), the only real difference comes in that the shocks are better. So if you ask me, both combos should do as good on the track, but the FSD allows for better everyday comfort due to its dual-valved nature

woo hoo
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      08-10-2008, 10:53 PM   #16
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Quote:
Originally Posted by Vudoo4u2 View Post
As far as performance on a track...given, this is all just from what Ive read on this forum (and Ive probably spent a few hours too many doing it)...the koni fsd/eibach should not perform any less competently on a track than the hrsport/yellow combo. Its just that FSD's are a higher end shock overall (from koni), and being that the hr sport and eibach pro kit are very comparable (drop heights are similar, and spring rates as well), the only real difference comes in that the shocks are better. So if you ask me, both combos should do as good on the track, but the FSD allows for better everyday comfort due to its dual-valved nature

woo hoo

Just when I thought I was finished posting for the night .........

I'll sleep better now!
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      08-11-2008, 12:06 PM   #17
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For most street based setups, a spring/shock combo is more than adequate. Given that you are not going to track the car very often and are not serious about adjusting the suspension, a spring/shock combo will more than suit your needs. The H&R Cup Kit or a set of springs with the Koni Yellows would be suitable for the street as well as occasional track sessions so they are quite versatile.

Coilovers are fantastic if you have the budget for them as you get that range of flexibility in terms of height and in some cases dampening adjustment. The only thing I would caution is to make sure that you are going to take advantage of these features as there is no reason to pay extra for something you won't use very often.
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      08-11-2008, 04:37 PM   #18
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Quote:
Originally Posted by Nick@Jlevi SW View Post
For most street based setups, a spring/shock combo is more than adequate. Given that you are not going to track the car very often and are not serious about adjusting the suspension, a spring/shock combo will more than suit your needs. The H&R Cup Kit or a set of springs with the Koni Yellows would be suitable for the street as well as occasional track sessions so they are quite versatile.

Coilovers are fantastic if you have the budget for them as you get that range of flexibility in terms of height and in some cases dampening adjustment. The only thing I would caution is to make sure that you are going to take advantage of these features as there is no reason to pay extra for something you won't use very often.
+1
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      08-12-2008, 07:23 AM   #19
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Quote:
Originally Posted by Nick@Jlevi SW View Post
For most street based setups, a spring/shock combo is more than adequate. Given that you are not going to track the car very often and are not serious about adjusting the suspension, a spring/shock combo will more than suit your needs. The H&R Cup Kit or a set of springs with the Koni Yellows would be suitable for the street as well as occasional track sessions so they are quite versatile.

Coilovers are fantastic if you have the budget for them as you get that range of flexibility in terms of height and in some cases dampening adjustment. The only thing I would caution is to make sure that you are going to take advantage of these features as there is no reason to pay extra for something you won't use very often.
Nick, as a vendor you've just scored lots of points with me!
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      08-12-2008, 07:54 PM   #20
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Quote:
Originally Posted by camaross305 View Post
I never go to the track and i want to lower my car slightly and have some improved handling without compromising ride quality.
Get some Tein S-Tech springs

Perfect if you just want the look and a cushy ride

http://www.tein.com/tech_info/j14.html
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      08-15-2008, 08:15 AM   #21
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I have S-techs on my Rx and I love them. Best of both worlds esp with bimmer shocks your set.
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      08-15-2008, 11:12 AM   #22
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http://www.**********s.com/product.a...ilovers_E90_RS

^Those are probably your best bet.
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