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      12-23-2014, 06:55 PM   #1
purdyawesome
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Don't need fancy coilovers. Don't want the back end any lower at all. Want to drop the front end just a little bit- like 1/2"-5/8". Want to close the wheel gap very subtly while minimizing any affect on the stock suspension ride quality and performance handling. Doesn't seem like there is a solution at this time- but do you guys think there will be? If Eibach designed the OEM springs, couldn't they just immediately offer a front-end solution with nearly identical spring rates to the stock setup? I know the sleeve kits are decent- but they are expensive for what I want and like I said, I don't want to touch the rear end. Long story short- I want OEM or equivalent springs for the front end only. Was anything like this offered on the e92?
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      12-24-2014, 05:21 AM   #2
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Quote:
Originally Posted by purdyawesome
Don't need fancy coilovers. Don't want the back end any lower at all. Want to drop the front end just a little bit- like 1/2"-5/8". Want to close the wheel gap very subtly while minimizing any affect on the stock suspension ride quality and performance handling. Doesn't seem like there is a solution at this time- but do you guys think there will be? If Eibach designed the OEM springs, couldn't they just immediately offer a front-end solution with nearly identical spring rates to the stock setup? I know the sleeve kits are decent- but they are expensive for what I want and like I said, I don't want to touch the rear end. Long story short- I want OEM or equivalent springs for the front end only. Was anything like this offered on the e92?
Doesn't exist. Try height adjustable springs from KW

Actually the best ride heights for balance on these cars appears that fronts are higher than the rears as far as wheel arch gap is concerned.

Lowering the front only causes geometry changes that affect cornering under braking performance and traction on the rear end. Read the other KW threads for more details.
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      12-24-2014, 12:15 PM   #3
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OP doing what you're asking is completely throwing off the suspension and taking away from what makes these M cars so great, their handling, there are a lot of threads on suspension upgrades, balance, etc.
Not really sure where you got that Eibach makes the springs on our cars, I'm assuming that from the early pics showing the prototype M with eibach springs on, that was never confirmed though. BMW could've easily used different set ups at that time during testing.
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      12-24-2014, 12:39 PM   #4
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$65k+ car, and the sleeve kit is expensive? Huh? Do it right or don't do it at all...
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      12-24-2014, 12:53 PM   #5
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Quote:
Originally Posted by MasterC17
$65k+ car, and the sleeve kit is expensive? Huh? Do it right or don't do it at all...
Yes. $1800 for the sleeve kit (installed and aligned) is imo expensive for what I'm trying to achieve. I want a 1/2" drop in the front. That's it. I don't need adjustability. If I have to do all four corners I could get a spring kit for a third of the price.
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      12-24-2014, 01:18 PM   #6
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Quote:
Originally Posted by Bob MG
Quote:
Originally Posted by purdyawesome
Don't need fancy coilovers. Don't want the back end any lower at all. Want to drop the front end just a little bit- like 1/2"-5/8". Want to close the wheel gap very subtly while minimizing any affect on the stock suspension ride quality and performance handling. Doesn't seem like there is a solution at this time- but do you guys think there will be? If Eibach designed the OEM springs, couldn't they just immediately offer a front-end solution with nearly identical spring rates to the stock setup? I know the sleeve kits are decent- but they are expensive for what I want and like I said, I don't want to touch the rear end. Long story short- I want OEM or equivalent springs for the front end only. Was anything like this offered on the e92?
Doesn't exist. Try height adjustable springs from KW

Actually the best ride heights for balance on these cars appears that fronts are higher than the rears as far as wheel arch gap is concerned.

Lowering the front only causes geometry changes that affect cornering under braking performance and traction on the rear end. Read the other KW threads for more details.
Thanks. That helps. Think I'll just keep her stock for the time being. With all the mods we do to the engine, exhaust, etc it's hard to imagine a half inch with an oem spring-rate causing this much fuss. I mean, I have 12mm spacers on the car and notice zero changes. They've gotta have an affect on handling as well, no?
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      12-24-2014, 01:25 PM   #7
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I get that the geometry would change. I'm no engineer, but I'd be surprised tho if it, "totally threw it off"... Are you in the "don't touch the stock suspension" camp? Because I can't imagine other solutions guys are using wouldn't have an equal or greater impact on the stock setup. I'm talking equal spring rate, super small drop. The HR kits are way more aggressive, as are the coilovers (admittedly ignoring the ability to properly setup the KW systems).
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      12-24-2014, 01:41 PM   #8
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Quote:
Originally Posted by MasterC17 View Post
$65k+ car, and the sleeve kit is expensive? Huh? Do it right or don't do it at all...
Sleeve kit = doing it right?

If by doing it right you mean ruining the handling and balance of your car, sure.
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      12-24-2014, 02:33 PM   #9
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Quote:
Originally Posted by KennyPowers View Post
Sleeve kit = doing it right?

If by doing it right you mean ruining the handling and balance of your car, sure.
I'm not saying the HAS kit is ideal, but it's better than leaving the stock rear coil spring and throwing some random springs on the front purely for aesthetic purposes. And if set up properly, I don't think the HAS kit "ruins the handling and balance of the car", not saying it would improve it either though.

OP I think you should just buy a set of H&R or equivalent springs for what you are trying to accomplish.
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      12-24-2014, 02:37 PM   #10
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You can always do this...
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      12-24-2014, 02:39 PM   #11
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You can always do this...
lol just kidding don't ever do this!
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      12-24-2014, 02:46 PM   #12
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Originally Posted by Freshprinceofhp View Post
lol just kidding don't ever do this!
Please, no one ever do this haha
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      12-24-2014, 06:36 PM   #13
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Quote:
Originally Posted by purdyawesome View Post
I get that the geometry would change. I'm no engineer, but I'd be surprised tho if it, "totally threw it off"... Are you in the "don't touch the stock suspension" camp? Because I can't imagine other solutions guys are using wouldn't have an equal or greater impact on the stock setup. I'm talking equal spring rate, super small drop. The HR kits are way more aggressive, as are the coilovers (admittedly ignoring the ability to properly setup the KW systems).
If the "Are you in the "don't touch the stock suspension" camp" was directed to me then no I'm not because I always go with coilovers but I have my cars corner balanced. Big difference there. At the end of the day it is your car and you'll do what you want but to do one set of springs in the front and another in the rear is just wrong and yes I would prefer stock suspension over that any day.
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      12-24-2014, 10:48 PM   #14
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Originally Posted by Freshprinceofhp View Post
lol just kidding don't ever do this!
Too late :-(
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      12-25-2014, 02:00 PM   #15
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you really did?
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      12-25-2014, 03:14 PM   #16
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lol, nope. KW HAS just arrived yesterday, installing it this weekend.
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      12-26-2014, 10:03 AM   #17
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Quote:
Originally Posted by purdyawesome View Post
Yes. $1800 for the sleeve kit (installed and aligned) is imo expensive for what I'm trying to achieve. I want a 1/2" drop in the front. That's it. I don't need adjustability. If I have to do all four corners I could get a spring kit for a third of the price.
Someone is charging you $1000 for install/alignment? Ouch
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      12-30-2014, 09:57 AM   #18
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Quote:
Originally Posted by BlackJetE90
Quote:
Originally Posted by purdyawesome View Post
Yes. $1800 for the sleeve kit (installed and aligned) is imo expensive for what I'm trying to achieve. I want a 1/2" drop in the front. That's it. I don't need adjustability. If I have to do all four corners I could get a spring kit for a third of the price.
Someone is charging you $1000 for install/alignment? Ouch
$500 install
$960 sleeve kit after tax
$250 alignment

$1710. Guess I was a little high.
Still pricey for what I want. Gonna leave it stock for now and wait for Eibach springs.
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      12-30-2014, 01:30 PM   #19
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Eibach's spring kit supposedly drops the rear .2" and the front .8"

If that's not sufficient wait for coilovers that are made specifically for the F80.
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      12-30-2014, 04:25 PM   #20
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Any word on when the Eibach's is supposed to be released? I'm getting impatient here, gotta close the gap!
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      12-31-2014, 08:05 AM   #21
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Quote:
Originally Posted by purdyawesome View Post
$500 install
$960 sleeve kit after tax
$250 alignment

$1710. Guess I was a little high.
Still pricey for what I want. Gonna leave it stock for now and wait for Eibach springs.
Wow.
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      12-31-2014, 08:45 AM   #22
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Quote:
Originally Posted by jzmundy
Quote:
Originally Posted by purdyawesome View Post
$500 install
$960 sleeve kit after tax
$250 alignment

$1710. Guess I was a little high.
Still pricey for what I want. Gonna leave it stock for now and wait for Eibach springs.
Wow.
4 wheel alignment done by a guy that charges a premium because he can.... It's about $100 more than some other guys...
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