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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Help with installing BMW Performace Suspension Kit



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      09-28-2013, 11:51 PM   #45
cvc 22349a
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Quote:
Originally Posted by nikitino25 View Post
Thanks,
e90/e92 BMW Performance (Calculated given that the material of this spring is the same as the ZSP springs)
Front: 195 lb/in
Rear: 505 lb/in

Anybody know if the springs are progressive or linear rate?
Linear
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      09-29-2013, 09:04 AM   #46
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Quote:
Originally Posted by nikitino25 View Post
Thanks,
e90/e92 BMW Performance (Calculated given that the material of this spring is the same as the ZSP springs)
Front: 195 lb/in
Rear: 505 lb/in

Anybody know if the springs are progressive or linear rate?
They are linear, which is one main reason I like them.
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      09-30-2013, 06:44 PM   #47
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Quote:
Originally Posted by chuckc View Post
This has been a very good thread. Can those that have put the Performance suspension in post pictures? I want to keep the ride height as close to stock as I can on my 335is. BMW literature talks about a drop even compared to the standard sport suspension.
I've seen many mentioning of 3/4" drop ... my installer also mentioned that.

I will post some pictures when I have a chance to take them.
I do not notice of a big drop, although the car felt very solid and stable when go
over road bumps, carving through Topanga Caynon is so easy now.

Sonny
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      09-30-2013, 07:21 PM   #48
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Quote:
Originally Posted by bimmerup-sonny View Post
I've seen many mentioning of 3/4" drop ... my installer also mentioned that.

I will post some pictures when I have a chance to take them.
I do not notice of a big drop, although the car felt very solid and stable when go
over road bumps, carving through Topanga Caynon is so easy now.

Sonny
Did you originally have sports suspension or just regular? Also, how do you like the set, any more details? Are you happy the way it rides, less body roll, squat, etc?
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      10-01-2013, 10:57 AM   #49
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Quote:
Originally Posted by nikitino25 View Post
Did you originally have sports suspension or just regular? Also, how do you like the set, any more details? Are you happy the way it rides, less body roll, squat, etc?
Yes... very happy with the set up...much less body roll now

My original ride was standard suspension. If you look at page #2, I gave a more
detailed feedback.

Sonny
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      10-01-2013, 11:28 AM   #50
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Quote:
Originally Posted by chuckc View Post
This has been a very good thread. Can those that have put the Performance suspension in post pictures? I want to keep the ride height as close to stock as I can on my 335is. BMW literature talks about a drop even compared to the standard sport suspension.
These threads have many pictures of the mod
This one gave a very accurate review
http://www.e90post.com/forums/showthread.php?t=284808

http://www.e90post.com/forums/showthread.php?t=278791
http://www.e90post.com/forums/showthread.php?t=197443
http://www.e90post.com/forums/showthread.php?t=122585

Sonny
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      10-01-2013, 03:36 PM   #51
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Since that review at the top, the BMWPS has gone to version 2....probably in 2011 or 2012. It is essentially the same but is slight stiffer and slightly more performance oriented.
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      10-02-2013, 12:34 AM   #52
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Good stuff. Thanks Sonny.
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      03-14-2014, 12:28 AM   #53
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How are the performance suspensions holding up? $1260 plus labor is an investment
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      03-14-2014, 01:08 AM   #54
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Quote:
Originally Posted by rogerdiaz View Post
How are the performance suspensions holding up? $1260 plus labor is an investment
They hold up well, probably more so than a coilover suspension.
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      03-14-2014, 08:09 AM   #55
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Quote:
Originally Posted by rogerdiaz View Post
How are the performance suspensions holding up? $1260 plus labor is an investment
I have the v1 kit (dampers only). Been on my car for 30+k miles, they still feel good as new. They're throwing a wrench in my compulsive suspension upgrade behavior as I can't justify taking them off. Note the v1 kit was dirt cheap compared to the current kit (but didn't include springs or swaybar).

If I were buying a new setup today, I would probably pass on $1260 for the new kit or at least consider cheaper options like koni yellows. But that's me, I don't really put much value on lowering the car and I already have a bigger front sway. Some people will value keeping everything BMW.

Last edited by mlifxs; 03-14-2014 at 08:22 AM.
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