ZPOST
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   ZPOST > BMW Z4 Technical Talk > Track / Autocross / Dragstrip / Driving Techniques
  TireRack

SUPPORT ZPOST BY DOING YOUR TIRERACK SHOPPING FROM THIS BANNER, THANKS!
Reply
 
Thread Tools Search this Thread
      07-18-2010, 11:26 PM   #1
Zed4M26
Private First Class
 
Zed4M26's Avatar
 
Drives: 2007 M Coupe
Join Date: May 2008
Location: Long Island, NY

Posts: 185
iTrader: (4)

TCK D/A Spring Rates

I am currently running 400/500 springs but feel at the track I can use a stiffer set-up. Anyone running the TCK D/A on the Mcoupe and tracking? If so, what spring rates are you going with?
__________________
BONE STOCK
Zed4M26 is offline  
Reply With Quote
      09-12-2010, 08:29 PM   #2
nlink720
Second Lieutenant
 
Drives: 2004 BMW Z4 Roadster
Join Date: Jan 2008
Location: Maryland

Posts: 230
iTrader: (3)

This is Two months after your post, but I have a 3.0i with 550F /700R and it is awesome. I primarily autocross, and use a square tire setup also.
nlink720 is offline   Reply With Quote
      09-12-2010, 11:52 PM   #3
jmillet
Captain
 
jmillet's Avatar
 
Drives: 2007 Z4 M Coupe
Join Date: Aug 2007
Location: Seattle, WA

Posts: 606
iTrader: (1)

Garage List
Quote:
Originally Posted by Zed4M26 View Post
I am currently running 400/500 springs but feel at the track I can use a stiffer set-up. Anyone running the TCK D/A on the Mcoupe and tracking? If so, what spring rates are you going with?
I have 500# front and 600# rear on my TCK DA suspension. The key to a manageable street ride is proper adjustment of rebound and bump. I run two clicks in from full soft on front and rear bump and 1.5 turns in from full soft front and 1 turn from full soft rear for rebound.
For a dry track I run 8 clicks from full soft front and rear bump and one half turn from full firm front rebound and one turn from full firm rebound rear.
__________________
Jim Millet
2007 E86 Z4 M Coupe/ZPP Premium Package/Nav System/Heated Seats/HD Radio/CDV Delete/Strong-Strut/TCK DA Coil Over Suspension/500# front; 600# rear/TCK Camber-Caster Plates

jmillet is offline   United_States
Reply With Quote
      09-13-2010, 03:35 PM   #4
Zed4M26
Private First Class
 
Zed4M26's Avatar
 
Drives: 2007 M Coupe
Join Date: May 2008
Location: Long Island, NY

Posts: 185
iTrader: (4)

Thanks Jim - I was looking at swamping the springs out to 500-600 but I may hold off and look into the moton set-up for next season. Did you swap your sway as well?
__________________
BONE STOCK
Zed4M26 is offline   Reply With Quote
      09-14-2010, 01:15 PM   #5
F360C
Captain
 
Drives: M Shoe
Join Date: Apr 2006
Location: Jersey

Posts: 883
iTrader: (2)

Quote:
Originally Posted by Zed4M26 View Post
Thanks Jim - I was looking at swamping the springs out to 500-600 but I may hold off and look into the moton set-up for next season. Did you swap your sway as well?
Hmmm maybe we could work something out because I am looking at going with the 600/700 set up. I currently have the 525/650 set up
__________________

07 Z4 M Coupe AW/IR
F360C is offline   United_States
Reply With Quote
      09-14-2010, 05:03 PM   #6
Zed4M26
Private First Class
 
Zed4M26's Avatar
 
Drives: 2007 M Coupe
Join Date: May 2008
Location: Long Island, NY

Posts: 185
iTrader: (4)

Can the TCK's handle that stiff of a spring rate?
__________________
BONE STOCK
Zed4M26 is offline   Reply With Quote
      09-15-2010, 10:31 AM   #7
F360C
Captain
 
Drives: M Shoe
Join Date: Apr 2006
Location: Jersey

Posts: 883
iTrader: (2)

Quote:
Originally Posted by Zed4M26 View Post
Can the TCK's handle that stiff of a spring rate?
They should be able too. Both TCK and GC use the same Koni shock I believe. I guess he only variable is what TCK valves their shock too. I guess the best person to ask would be TCK
__________________

07 Z4 M Coupe AW/IR
F360C is offline   United_States
Reply With Quote
      09-15-2010, 12:47 PM   #8
Zed4M26
Private First Class
 
Zed4M26's Avatar
 
Drives: 2007 M Coupe
Join Date: May 2008
Location: Long Island, NY

Posts: 185
iTrader: (4)

Yea I know for the TCK they use the vvs springs but the koni shocks can only handle I would think max 700. Would be interested to here what TCK has to say about run that type of spring rate on the m coupe.
__________________
BONE STOCK
Zed4M26 is offline   Reply With Quote
      09-17-2010, 11:53 AM   #9
RussRamz
M Slut
 
RussRamz's Avatar
 
Drives: 2011 M3 Coupe Mineral White
Join Date: Sep 2007
Location: Adenau, GE via 3 years in dreadful El Paso, TX

Posts: 541
iTrader: (0)

Send a message via ICQ to RussRamz
I had the TC Kline 500/600 and it was way too soft. I eventually ran 550 front and 700 rear, but then it began over springing the dampers. I got rid of mine and threw them away.
__________________
You have to be 100% behind someone before you can stab them in the back.

David Brent
RussRamz is offline   United_States
Reply With Quote
      09-18-2010, 02:43 PM   #10
Zed4M26
Private First Class
 
Zed4M26's Avatar
 
Drives: 2007 M Coupe
Join Date: May 2008
Location: Long Island, NY

Posts: 185
iTrader: (4)

What set-up are you running now?
__________________
BONE STOCK
Zed4M26 is offline   Reply With Quote
      09-20-2010, 06:56 AM   #11
AWM3
BMW Fan
 
AWM3's Avatar
 
Drives: 2012 E92 M3, Alpine White
Join Date: Apr 2008
Location: Georgia, USA

Posts: 553
iTrader: (0)

I had 800 lb rear springs on my E46M3 and the TCK DA shocks seemed to work well with those springs; however this was primarily on smooth racetracks not nearly as demanding as the Nurburgring (which I believe is RussRamz playground) so I believe that for autocross or most US racetracks they are OK at up to 800 lb spring rates. During a conversation with Pete at TCK a few years ago I recall he said that they don't sell any springs higher than 700 lbs, but he didn't say that the shocks can't handle a higher spring rate. Hope that helps. I haven't done a full suspension on my Z4MC but I think that 700 lb springs in the back is as high as I would go. I cannot speak from direct experience however.
AWM3 is offline   Reply With Quote
      09-20-2010, 07:09 AM   #12
RussRamz
M Slut
 
RussRamz's Avatar
 
Drives: 2011 M3 Coupe Mineral White
Join Date: Sep 2007
Location: Adenau, GE via 3 years in dreadful El Paso, TX

Posts: 541
iTrader: (0)

Send a message via ICQ to RussRamz
Quote:
Originally Posted by Zed4M26 View Post
What set-up are you running now?
I have a custom 2 way KW Competition setup. They cannot be ordered off the shelf, but it's quite easy to have a set made and delivered if you're willing to wait for them to be built-up (2 weeks) and shipped (another 2 weeks or so if shipping stateside).
__________________
You have to be 100% behind someone before you can stab them in the back.

David Brent
RussRamz is offline   United_States
Reply With Quote
      09-20-2010, 02:49 PM   #13
Master Apex
Private
 
Drives: '07 Z4M & '06 E60M5
Join Date: Apr 2010
Location: Austin, TX

Posts: 90
iTrader: (0)

Garage List
2007 Z4MCoupe  [0.00]
I am running KW CS and like it for the street compliance and track capability.

Just trying to compare to other spring rates....anyone know what the KW CS spring rates are (front is linear, rear is progressive) ?
Master Apex is offline   United_States
Reply With Quote
      09-21-2010, 02:17 PM   #14
Zed4M26
Private First Class
 
Zed4M26's Avatar
 
Drives: 2007 M Coupe
Join Date: May 2008
Location: Long Island, NY

Posts: 185
iTrader: (4)

Anyone have experience with the Moton clubsports on a M Coupe?

Is the new KW set-up much stiff than the tck?
__________________
BONE STOCK
Zed4M26 is offline   Reply With Quote
      09-22-2010, 12:04 AM   #15
terryltl
Private First Class
 
Drives: z4mc
Join Date: Sep 2008
Location: Hacienda Heights, CA

Posts: 128
iTrader: (0)

I running KW cs with 11kg swift spring, not very aggressive,
but is enough for my
terryltl is offline   Taiwan
Reply With Quote
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
Forum Jump


All times are GMT -5. The time now is 09:51 AM.




zpost
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2013, 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