New 2009 2010 BMW Z4 - ZPOST
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   New 2009 2010 BMW Z4 - ZPOST > BMW Z4 Forum (E89) > Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications

Post Reply
 
Thread Tools Search this Thread
      08-18-2012, 03:57 PM   #23
--
New Member
0
Rep
23
Posts

Drives: -
Join Date: Jun 2012
Location: -

iTrader: (0)

H&R make upgraded sway bars for the E89

http://www.e-parts.co.uk/product.asp...072900&manu=23
Appreciate 0
      02-14-2013, 05:54 AM   #24
HowieZ4
Newbie!
HowieZ4's Avatar
7
Rep
66
Posts

Drives: Z4 35i
Join Date: Jul 2012
Location: S.E.Asia

iTrader: (0)

I've decided to go with the KW V3 upgrade path and am glad to read so many positive feedback here.

My one big question is, has anyone here with the installed KW V3 tried adjusting it to the softest setting?

I'm curious if the KW two-stage valves allows a rebound damping adjustment (comfort) set at the softest BUT a compression adjustment (driving dynamics) at the recommended setting will provide a comfortable ride but less body roll at the same time?

It might seem strange I'm upgrading to a high performance suspension but asking feedback for the softest setting vs. stock feel but it basically comes down to road conditions being not very good in Asia (90% driving) but need to be able to firm up for track days (10% driving) as well.

Any volunteer willing to test out this comfort setting for us sitting on the fence with the KW V3?

UPDATE: KW has also released an electronic adjustable DDC Coilover Kit that can be adjusted wirelessly from an iPhone! (http://www.kw-suspensions.eu/int/kw_ddc.php)

It has the similar 3 settings like the factory adaptive suspension BUT with the added end user personalized fine setting in between. Seems it's available for the Series 1 & 3 but hopefully be adapted for the Z4 E89 soon.
__________________

BMW Z4 35i Havana
Cobb Tune (Stg1-360hp)

Last edited by HowieZ4; 02-15-2013 at 12:05 AM.
Appreciate 0
      01-28-2014, 08:54 AM   #25
shlai
Private
Hong Kong
6
Rep
84
Posts

Drives: 2009 Z4 E89 3.5i DCT
Join Date: Oct 2013
Location: Hong Kong

iTrader: (0)

my garage told me that kw v3 when set to 4 click to softest equal to the softness of the factory suspension. since where i drove in hong kong has lots of bumps and inperfection on road, i ask them for a less aggressive setup as a start. so they take the max. height, ie. 15mm drop at front and 10mm drop at rear, and set the bump to just one or two click harsher than the factory suspension. i feel the side roll during cornering has much improved, ans the front-back boating felt during hard acceleration and brake has much improved. but get no mistake, now the car seems to perform as good as my old E85. what i am trying to say is that i really dont know what those bmw engineers were thinking when setting e89
Appreciate 0
      01-30-2014, 12:54 AM   #26
Hujan
Brigadier General
Hujan's Avatar
United_States
451
Rep
3,692
Posts

Drives: M3
Join Date: Apr 2013
Location: .

iTrader: (16)

The KWs are tempting. The E89 suspension feels way too loose to me, especially compared to the M3. I can't imagine it with 100 more HP/TQ.

At the same time, I don't want to harshen the ride. I often find that stiffer suspensions are slower suspensions on the street. I like to hear that the KW v3s can be setup to provide roll reduction but not ride so harsh.
Appreciate 0
      02-04-2014, 08:10 AM   #27
shlai
Private
Hong Kong
6
Rep
84
Posts

Drives: 2009 Z4 E89 3.5i DCT
Join Date: Oct 2013
Location: Hong Kong

iTrader: (0)

i had my kw v3 installed fora week, and here us my review:
Thumbs up:
1. body roll is much eliminated whether on tight, fast turn or broad, long turn at high
2. easy to adjust rebound and compression without jacking up the car. i set the car at rather high height so i am still able to turn the dial of the strut at rear with a long rod
3. the ride is not harsh, of course it is slightly harsher than stock

Thumbs down:
1. the rear is making lots of knocking sound. i believe it is the notorious spring binding problem
Appreciate 0
      02-04-2014, 08:14 AM   #28
shlai
Private
Hong Kong
6
Rep
84
Posts

Drives: 2009 Z4 E89 3.5i DCT
Join Date: Oct 2013
Location: Hong Kong

iTrader: (0)

the rear spring is already touching itself even when the car is static. some paint chip off from the spring near the top end
Attached Images
  

Last edited by shlai; 02-10-2014 at 07:50 AM.
Appreciate 0
      02-11-2019, 02:23 PM   #29
taranfx
Z4 35is
taranfx's Avatar
United_States
14
Rep
181
Posts

Drives: 2011 Z4 35is || 2015 328i
Join Date: Apr 2016
Location: Santa Clara, CA

iTrader: (0)

Quote:
Originally Posted by timber511 View Post
i have H&R SWAYBAR ON THE CAR TOO
I've the same combo kw v3 and H&R sway bars on stiffest.
And even with softest KW v3, its lot harder and bumpier than stock suspension for daily driving. My gf hates it. May be in need to downsize 19" to 18" or a softer sidewall tire other than my current PS4S.
What are your experiences?
__________________
2011 Z4 E89 35is 2015 F30 328i
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -5. The time now is 11:04 PM.




zpost
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST