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
      03-20-2013, 08:29 PM   #1
GooDy151
Private First Class
 
GooDy151's Avatar
 
Drives: BUS
Join Date: Sep 2008
Location: SF

Posts: 131
iTrader: (0)

Expert on brake please advise for Big Brake Kit

I did search but I'm still not sure about this issue.

If I would ditch the e-brake function , would I be able to put 2pots bmw performance brake in to the rear with no problem ?
__________________
'09 Z4 35i on the way of build
'06 997s built motor from Vision Motorsport 421WHP N/A
'96 Skyline R33 GTS stock trying to register it.
'99 Subaru Impreza 2.2 JE pistons , HKS rods , Jun cam 272 / 272, Greddy T78 32D , Sard 1000cc Inj., Tein and Tomei SQ trans , 10.21sec
GooDy151 is offline   No_Country
0
Reply With Quote
      03-21-2013, 01:22 AM   #2
Drew@Sonic MS
Private
 
Drives: Z4 35i
Join Date: Apr 2012
Location: CA

Posts: 89
iTrader: (0)

It'll be tough... especially if you have the DCT since it'll be hard to tell what it's doing in P mode. If it's manual I might give it a shot but I think the E89 uses another chassis for it's rear end - like all the other Z cars.
Drew@Sonic MS is offline  
0
Reply With Quote
      03-21-2013, 01:29 AM   #3
GooDy151
Private First Class
 
GooDy151's Avatar
 
Drives: BUS
Join Date: Sep 2008
Location: SF

Posts: 131
iTrader: (0)

Quote:
Originally Posted by Drew@Sonic MS View Post
It'll be tough... especially if you have the DCT since it'll be hard to tell what it's doing in P mode. If it's manual I might give it a shot but I think the E89 uses another chassis for it's rear end - like all the other Z cars.
Thanks Drew,

I have DTC on my Z4 and I actually never use the e brake at all.
I just use P and that's it.


PS. Drew , you haven't reply me PM about your quarter panel. Can you please send me some detail ?
__________________
'09 Z4 35i on the way of build
'06 997s built motor from Vision Motorsport 421WHP N/A
'96 Skyline R33 GTS stock trying to register it.
'99 Subaru Impreza 2.2 JE pistons , HKS rods , Jun cam 272 / 272, Greddy T78 32D , Sard 1000cc Inj., Tein and Tomei SQ trans , 10.21sec
GooDy151 is offline   No_Country
0
Reply With Quote
      03-21-2013, 04:35 AM   #4
VailM3
Lieutenant
 
Drives: 2011 Z4 35is
Join Date: Jan 2013
Location: Geneva Switzerland

Posts: 544
iTrader: (0)

If you dont ditch the ebrake (and its best not to) you can get front M-performance brakes ala 1-series for your car. I question getting them as they are smaller than stock brakes for euro 35iS. (at least I hear they are smaller)
VailM3 is offline  
0
Reply With Quote
      03-21-2013, 12:37 PM   #5
GooDy151
Private First Class
 
GooDy151's Avatar
 
Drives: BUS
Join Date: Sep 2008
Location: SF

Posts: 131
iTrader: (0)

Quote:
Originally Posted by VailM3 View Post
If you dont ditch the ebrake (and its best not to) you can get front M-performance brakes ala 1-series for your car. I question getting them as they are smaller than stock brakes for euro 35iS. (at least I hear they are smaller)
I heard that too.
I think the positive side is the mono block caliper design and stuff that give advantage on track day. May be hold the heat better or something idk.

Cold cold brake doesn't make that much different for brake testing distance but when you on on the track after 6 laps I think car will show some fade action.

Do you think swap to 35is brake is good option ?

I'll need a brake for my car, It will be on track for time attack.
__________________
'09 Z4 35i on the way of build
'06 997s built motor from Vision Motorsport 421WHP N/A
'96 Skyline R33 GTS stock trying to register it.
'99 Subaru Impreza 2.2 JE pistons , HKS rods , Jun cam 272 / 272, Greddy T78 32D , Sard 1000cc Inj., Tein and Tomei SQ trans , 10.21sec
GooDy151 is offline   No_Country
0
Reply With Quote
      03-21-2013, 12:39 PM   #6
GooDy151
Private First Class
 
GooDy151's Avatar
 
Drives: BUS
Join Date: Sep 2008
Location: SF

Posts: 131
iTrader: (0)

Question is is the rear BMW performance going to fit bolt right on? (if I ditch ebrake)

thanks for input.
__________________
'09 Z4 35i on the way of build
'06 997s built motor from Vision Motorsport 421WHP N/A
'96 Skyline R33 GTS stock trying to register it.
'99 Subaru Impreza 2.2 JE pistons , HKS rods , Jun cam 272 / 272, Greddy T78 32D , Sard 1000cc Inj., Tein and Tomei SQ trans , 10.21sec
GooDy151 is offline   No_Country
0
Reply With Quote
      03-23-2013, 09:54 PM   #7
Drew@Sonic MS
Private
 
Drives: Z4 35i
Join Date: Apr 2012
Location: CA

Posts: 89
iTrader: (0)

I believe as long as you get the right kit it should bolt on. The Z series probably just has another chassis rear brake set up so just gotta figure out where they got it from.
Drew@Sonic MS is offline  
0
Reply With Quote
      03-25-2013, 03:23 PM   #8
ChuckB
Lieutenant
 
ChuckB's Avatar
 
Drives: 2009 BMW Z4
Join Date: Mar 2008
Location: Hockenheim, Germany (APO)

Posts: 446
iTrader: (0)

Garage List
Here is what I researched when I was was looking at fix my brake fade issue last year...

This will require minimum 17" wheels, but be warned - ONLY BMW 17" wheels will fit. They have a recess on the back side that allows them to clear the 6 pot caliper and the larger caliper on the 35i/35is. Non BMW 17" wheels have issues fitting.

Rear set up. The European 23i and the 30i share the same rear brake pieces, and the European 35i and 35is share pieces. My figures show that the US version of the 35i uses the same parts as the European 30i, while on the 35is uses the larger rear setup.

sDrive23i [Euro & non US]
Front Caliper 34 11 6769091 [L]/ 2 [R]
Front Carrier 34 11 6769095
Front Rotor 34 11 6772669 [300x24]
Rear Caliper 34 20 6786057 [L]/8 [R]
Rear Carrier 34 20 6786046
Rear Rotor 34 21 6782605 [300x20]

sDrive30i [both US & Euro model] & sDrive35i [US model]
Front Caliper 34 11 6769093 [L]/ 4 [R]
Front Carrier 34 11 6769097
Front Rotor 34 11 6782601 [330x24]
Rear Caliper 34 20 6786057 [L]/8 [R]
Rear Carrier 34 20 6786046
Rear Rotor 34 21 6782605 [300x20]

sDrive35i [European Model]
Front Caliper 34 11 6773201 [L]/2 [R]
Front Carrier 34 11 6773203
Front Rotor 34 11 6782593 [348x30]
Rear Caliper 34 20 6786067 [L]/8 [R]
Rear Carrier 34 20 6786069
Rear Rotor 34 21 6782607 [324x20]

sDrive35is [Both Euro & US]
Front Caliper 34 11 6773201 [L]/2 [R]
Front Carrier 34 11 6773203
Front Rotor 34 11 6782593 [348x30]
Rear Caliper 34 20 6786067 [L]/8 [R]
Rear Carrier 34 20 6786069
Rear Rotor 34 21 6782607 [324x20]

While some of the other BMW non- E-Brake disks measure the same across the major dimensions, he offset between the friction surfaces, wheel mounting surface and where the caliper mounts will not match and will cause a few issues [which can be corrected with some machining/spacers. I think the loss of a back up [Emergency] brake system is a larger issue and will require substantial coding. this is pretty much why I held off on the rears, plus with the re-coding by BMW and Schmickler the brakes are pretty well balanced.
__________________
2007 E81 - 120d Limited Sport Ed
2009 E89 - sDrive3.0
ChuckB is offline   United_States
0
Reply With Quote
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
Forum Jump


All times are GMT -5. The time now is 06:49 PM.




zpost
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, 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