[harms]

Hi Guys (and girls?)

I have M-sport suspension, and am looking at Non-Coilover suspension options to even out the stance a bit more. Right now it looks so low in the rear. The 70k old shocks could probably do with replacing anyway.

I'm thinking Koni FSD's and Eibachs, but i've read the Eibachs are not much different in height to M-sport.

It would be interesting to hear others' height measurements.

So tell me, what springs do you have and what is the height measurement?

My factory M-sport measurements are (centre of hub to guard):
FR 355mm
FL 355mm
RR 330mm
RL 345mm

I'm not sure why the RR is so low - I have a full tank of fuel; perhaps this is why?

Thanks in advance fellow Beemer drivers.

[ZNITE]

I have the Koni FSD and Eibach springs on my 2009 E92.
Front measurement :350mm
Rear measurement. :340mm

[lemonpark]

if you really don't want coils and want to slam it, get Koni FSD with H&R Race springs, looks hot when its slammed IMO but might be too low for some, each to their own.
i wouldn't bother with eibach if you're looking to go lower than M Sport, not much difference

[harms]

Nah don't want to slam it. Just want it to look more even. I think the M-sport looks too low in the rear compared to front.

I would be keen to here suspension heights from anyone with H&R.

[Scotty89]

I got the Koni FSD + Eibach Pro kit on my e46 330ci and it was as low as you could go legally, 100mm at lowest point (behind from wheels).

It did however bottom out over some speed bumps (unless you crawled over them).

[Juz5i]

I'm currently looking into lowering my '07 E92 M-Sport soon aswell.

I was just thinking of changing the springs and seeing how it goes.
Like you I just want to even the arch gaps. I'm happy enough with the rear but ideally I'd like another 5-10mm drop there & as for the front I'm thinking more like 20-25mm.

From what I've been reading so far some people have had good results with the Eibach sport springs and others have been underwhelmed by very little drop at all. The H&R seem a bit too low and people say they give quite a harsh ride.
I will continue researching for now.

[lemonpark]

just get coils and have it adjusted to the height you want and IF cops ever say anything you can just raise it back up then dump it again. win win

[R3N]

Non factory height adjustable suspension is considered defectable in some states, requiring engineering permits. Keep that in mind.

Also i thought Eibach had 2 different kinds of springs? Sport and Pro?

[DR-JEKL]

FYI koni FSD shocks are for standard ride height applications only, with lowered springs you will prematurely wear them out (they will eventually leak)

Koni reccomend their koni yellow shocks for lowered springs such as the eibachs and h&r springs etc (i found this when deciding on shocks and springs or coilovers and koni had officially stated the fsd's were for oem springs only)

[Scotty89]

Originally Posted by DR-JEKL

FYI koni FSD shocks are for standard ride height applications only, with lowered springs you will prematurely wear them out (they will eventually leak)

Koni reccomend their koni yellow shocks for lowered springs such as the eibachs and h&r springs etc (i found this when deciding on shocks and springs or coilovers and koni had officially stated the fsd's were for oem springs only)

Not completely true:

[donR]

Yeah I saw the FSDs being packaged with the Eibachs. I can't imagine the Eibach springs will do much more than the stock m-sport spings and I believe the height is very similar.

Certainly the FSDs are a great idea and get excellent reviews and no doubt going to have more effect than the springs. I'd really like to try them, though price is still getting up there and getting close to coil over options.

[Scotty89]

Coil overs are illegal for street use in some states. Ideally they're intended for track use, for those who need to tweak suspension constantly to get every ounce of performance from their car.

Most low-end coilovers won't give you the complete adjustment required, they're just a product targeting a gap in the market... the market segment that want to 'slam' their cars on a budget.
Many brands will even label this low-end coilover product as their "street" model. If you're just getting suspension to lower your car, go ahead and get these and wait for the cops to show up.

I would hazard a guess that 4 out of 5 people who get coil over suspension have no idea how to set them up properly anyway. On top of this, you're not going to be able to push your car to the absolute limit (where the coilovers will make a difference) in the conditions that public roads offer. If you're pulling high G's cornering on public roads with potholes, you're insane and good luck to you.

FSD's might not have the adjustment that coilovers do, but they are targeted at street use - a compromise between comfort and improved handling (over factory suspension) for every day use on less than ideal public roads.

Edit: Maybe you should post up the set of coil over suspension you're looking at purchasing, as I guarantee the strut kits are not approaching the price of a decent coilover kit.

[DR-JEKL]

Originally Posted by Scotty89

Not completely true:

Well it seems things may have changed in the past 2 years?

When I researched it, there were owners with blown FSD's, and koni states the FSD's are for oem springs on their website still:

Koni FAQ:

http://www.koni.com/car-racing/technology/faq/

What is the difference between KONI FSD and KONI Sport (yellow)?
A: The KONI FSD adapts itself to the driving conditions (driving speed and road surface). The result is a very smooth ride under an very wide band of circumstances. The KONI FSD valving performs best in combination with the car’s factory springs. The KONI Sport offers a sportier, more responsive feel to the car under all circumstances and work on vehicles with higher performance parts. The higher initial valving baseline and the possibility to adjust the damping offers better compatibility with any aftermarket sports or lowering springs.

A few reviews here:

http://www.e90post.com/forums/showth...=352950&page=2

In previous cars I had bilsteins with lowered springs, both rears leaked, had them rebuilt and 18 months later they were stuffed. the $ i spent rebuilding them and having them removed/reinstalled i could have gotten coilovers so my next car I bought some tein flex's. I had koni yellow's years ago and they never leaked (they were quite stiff though!)

[JJH]

I run Koni Sports [commonly referred to as “yellow adjustables” (ref no 8741 1484L/R)] and Eibach Pro-Kit springs. My ride heights are 345 mm front and 340 mm rear. This suits me and I did not want to go any lower than that as a practical ride height was what I was after. Compared to M-Sport, this combo is far superior in terms of ride comfort, I can assure you. And the shocks being adjustable, you can tune the handling to suit.

Originally Posted by DR-JEKL

FYI koni FSD shocks are for standard ride height applications only, with lowered springs you will prematurely wear them out (they will eventually leak)

The FSD/Pro-Kit kit (ref no 2150 4036) is listed in the Koni Fitment Guide but it shows the kit as being UNSUITABLE for the 335i – so what DR-JEKL says is true for the car .

Tyre sizes can also have some minor effect on final measurements, I stress minor but is something to bear in mind. I run stock 335i tyre sizes.

[LotusBMW]

Originally Posted by JJH_335

I run Koni Sports [commonly referred to as “yellow adjustables” (ref no 8741 1484L/R)] and Eibach Pro-Kit springs. My ride heights are 345 mm front and 340 mm rear. This suits me and I did not want to go any lower than that as a practical ride height was what I was after. Compared to M-Sport, this combo is far superior in terms of ride comfort, I can assure you. And the shocks being adjustable, you can tune the handling to suit.



The FSD/Pro-Kit kit (ref no 2150 4036) is listed in the Koni Fitment Guide but it shows the kit as being UNSUITABLE for the 335i – so what DR-JEKL says is true for the car .

Tyre sizes can also have some minor effect on final measurements, I stress minor but is something to bear in mind. I run stock 335i tyre sizes.

Good info. Pics?

[JJH]

Originally Posted by LotusBMW

Good info. Pics?

Not wanting to hijack the thread but here's a link showing the ride height with the Koni yellows/Pro-Kit combo http://www.e90post.com/forums/showpo...6&postcount=80

[harms]

Originally Posted by JJH_335

Not wanting to hijack the thread but here's a link showing the ride height with the Koni yellows/Pro-Kit combo http://www.e90post.com/forums/showpo...6&postcount=80

No not hijacking at all - I am interested in ride heights - and that is bloody perfect. Thanks for posting.