Welcome to the North American Subaru Impreza Owners Club Wednesday November 26, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Click here to visit TireRack
Brakes & Suspension Forum sponsored by The Tire Rack

Losing traction? Need new tires?
Click here to visit the NASIOC Upgrade Garage...
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Brakes, Steering & Suspension

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 08-18-2009, 12:26 AM   #1
Turbo_Twinky
Scooby Specialist
 
Member#: 189469
Join Date: Sep 2008
Chapter/Region: NWIC
Location: Portland, Oregon
Vehicle:
SOLD WRX SonicYellow
Laguna Seca BMW e46 M3

Default Im a little confused and need some help with my brembo swap..please help?

Okay, so ive read all the sticky threads about brembo swaps but i am so confused.

First things first, I have a 2003 WRX with a stock drive line, axles, etc.

Next, I just picked up a set of 2005 front and rear brembos.
with the fronts, i got the rotors with the hubs still attached.

So i know that i need to do a conversion to the rear to get the rear brembos to work on my WRX. Is it possible to just find a set of 2005 STi rear hubs and use those? would i need to change axle/diff stuff?

basically, im asking what to do with the rear if i want to just convert over from 5x100 to 5x114.3

any suggestions?
* Registered users of the site do not see these ads.
Turbo_Twinky is offline   Reply With Quote
Old 08-18-2009, 12:40 AM   #2
LastResort
Scooby Guru
 
Member#: 99289
Join Date: Oct 2005
Default

Not having done the swap, I believe there are two "easy" options:

The first option, is the least favorable in my mind. It requires a special rear rotor that is a hybrid of the STI and the WRX so that the e-brake shoe fits the inner diamater.
http://www.fastwrx.com/rebradkit.html

The second option appears to be better, it uses a special e-brake pad that allows the use of standard STI rotors without problem. You should confirm that these will work for your WRX, as the term "classic" is open to interpretation:
http://www.godspeedbrakes.co.uk/Suba...ar_classic.htm



http://forums.nasioc.com/forums/show....php?t=1699740
LastResort is offline   Reply With Quote
Old 08-18-2009, 03:39 AM   #3
wheatpaste
Scooby Specialist
 
Member#: 170747
Join Date: Feb 2008
Chapter/Region: BAIC
Location: Oakland
Vehicle:
2004 WRX Wagon
PSM

Default

LastResort has got it down.

To answer your original question, no you cannot just slap on 05 STi hubs unless you are using STi rear axles, and R180 rear diff.

Do you have everything else for the 5x114.3 swap?
-Wheels
-Struts

IMHO it's probably better to just do the fronts with 5x100 rotors and keep your rears stock. Swapping to rear brembos is pretty expensive and probably doesn't make a ton of sense, unless you're doing a full 6-speed/R180 swap.
wheatpaste is offline   Reply With Quote
Old 08-18-2009, 04:29 AM   #4
Turbo_Twinky
Scooby Specialist
 
Member#: 189469
Join Date: Sep 2008
Chapter/Region: NWIC
Location: Portland, Oregon
Vehicle:
SOLD WRX SonicYellow
Laguna Seca BMW e46 M3

Default

okay, well that gives me something to think about, i kinda figured i would need to do the
R180 swap. but i was hoping it would be easier and less expensive than that haha

but as for the fronts..
i have tein flex coilovers and wheels that are drilled 5x100 and 5x114.3
but i dont know if the coilovers will work with the sti hubs. im guessing not..
so im guessing that wont work to just slap the front hubs on?
Turbo_Twinky is offline   Reply With Quote
Old 08-18-2009, 06:22 AM   #5
iluvdrt
Scooby Specialist
 
Member#: 46248
Join Date: Oct 2003
Chapter/Region: RMIC
Location: DRTY Autosports Denver, Co
Vehicle:
2012 outback 2.5
sky blue

Default

Couldnt he just change the backing plate in the rear to a 06-07 WRX that came with the Subaru 4/2 pot brakes, install the Brembo Caliper, and run a 06-07 WRX rear disc?

I would have ran the 04 STi Rotor on the front off my stock 5x100 hubs and the front Brembo caliper; change the backing plates on the rear to 06-07, and just ran a smaller rotor on the rear with the rear Brembo caliper. The 06-07 rear rotors are still bigger than stock, and vented.

IIRC Brembo calipers bolt the same way the Subaru 4 pots and 2 pots do.

Last edited by iluvdrt; 08-18-2009 at 06:30 AM.
iluvdrt is offline   Reply With Quote
Old 08-18-2009, 08:37 AM   #6
KNS Brakes
NASIOC Storefront Vendor
 
Member#: 125739
Join Date: Sep 2006
Chapter/Region: South East
Location: Raleigh, NC
Vehicle:
Who needs brakes?
Call: 919-420-0021

Default

Quote:
Originally Posted by iluvdrt View Post
Couldnt he just change the backing plate in the rear to a 06-07 WRX that came with the Subaru 4/2 pot brakes, install the Brembo Caliper, and run a 06-07 WRX rear disc?

I would have ran the 04 STi Rotor on the front off my stock 5x100 hubs and the front Brembo caliper; change the backing plates on the rear to 06-07, and just ran a smaller rotor on the rear with the rear Brembo caliper. The 06-07 rear rotors are still bigger than stock, and vented.

IIRC Brembo calipers bolt the same way the Subaru 4 pots and 2 pots do.
The 06 rear wrx disc is different

I think you can swap backing plates like that. That would save you the brackets.

Brackets are $250 - backing plates are less but harder to do?

Still need the smaller parking brake rotor though if you want the park brake to work.
KNS Brakes is offline   Reply With Quote
Old 08-18-2009, 08:44 AM   #7
iluvdrt
Scooby Specialist
 
Member#: 46248
Join Date: Oct 2003
Chapter/Region: RMIC
Location: DRTY Autosports Denver, Co
Vehicle:
2012 outback 2.5
sky blue

Default

OK, here is what you need without all the craziness.

Front:
2004 5x100 front STi Rotors
The front caliper will bolt up to your stock knuckle
Done for the front

Rear:
Rear hub and backing plate assy from a 06-07 WRX that came with 4/2 pots
06-07 rear rotor (smaller than STi, but e-brake assy is right, and it is still bigger than stock AND vented)
Change out your hubs for 06-07 hubs and backing plate
Install 06-07 rotor
bolt up rear Brembo
Done for the rear.
iluvdrt is offline   Reply With Quote
Old 08-18-2009, 08:48 AM   #8
KNS Brakes
NASIOC Storefront Vendor
 
Member#: 125739
Join Date: Sep 2006
Chapter/Region: South East
Location: Raleigh, NC
Vehicle:
Who needs brakes?
Call: 919-420-0021

Default

Quote:
Originally Posted by iluvdrt View Post

Rear:
Rear hub and backing plate assy from a 06-07 WRX that came with 4/2 pots
06-07 rear rotor (smaller than STi, but e-brake assy is right, and it is still bigger than stock AND vented)
Change out your hubs for 06-07 hubs and backing plate
Install 06-07 rotor
bolt up rear Brembo
Done for the rear.
rear WRX rotor - 290 x 18

rear STi rotor - 316 x 20

The pads won't hit the rotor even close to right will they?

The wrx rotor is too small and may have the wrong offset.
KNS Brakes is offline   Reply With Quote
Old 08-18-2009, 08:48 AM   #9
iluvdrt
Scooby Specialist
 
Member#: 46248
Join Date: Oct 2003
Chapter/Region: RMIC
Location: DRTY Autosports Denver, Co
Vehicle:
2012 outback 2.5
sky blue

Default

Quote:
Originally Posted by WRXBrakes View Post
The 06 rear wrx disc is different

I think you can swap backing plates like that. That would save you the brackets.

Brackets are $250 - backing plates are less but harder to do?

Still need the smaller parking brake rotor though if you want the park brake to work.

I know they are smaller, but they would still work with the 2 pot rears if he used the 06-07 WRX backing plate I am just thinking here). I don't think there is any differance in the Brembo rear, vs the Subaru 2 pot as far as the actual caliper is concerned. Yes, the rotors would be smaller than the STi rotor, but they would fine and his Ebrake would be OK IIRC.

I mean the way you use a larger rotor is raise the caliper. If the 2 calipers are the same, and uses the WRX backing plate it would put the Brembo in the same spot as the Subaru 2 pot. This should allow the use of the Brembo with the smaller rotor.

Last edited by iluvdrt; 08-18-2009 at 08:53 AM.
iluvdrt is offline   Reply With Quote
Old 08-18-2009, 08:52 AM   #10
KNS Brakes
NASIOC Storefront Vendor
 
Member#: 125739
Join Date: Sep 2006
Chapter/Region: South East
Location: Raleigh, NC
Vehicle:
Who needs brakes?
Call: 919-420-0021

Default

*IF* the offset is correct and the WRX rotor centers in the Brembo caliper it will still have 13 mm of pad not hitting rotor.
KNS Brakes is offline   Reply With Quote
Old 08-18-2009, 09:09 AM   #11
iluvdrt
Scooby Specialist
 
Member#: 46248
Join Date: Oct 2003
Chapter/Region: RMIC
Location: DRTY Autosports Denver, Co
Vehicle:
2012 outback 2.5
sky blue

Default

Quote:
Originally Posted by WRXBrakes View Post
*IF* the offset is correct and the WRX rotor centers in the Brembo caliper it will still have 13 mm of pad not hitting rotor.
What are the differances with the Brembo caliper, and the Subaru 2 pot caliper? Just the Caliper its self? I don't think there are any differance at all other than the Subaru/Brembo sticker.

If there are no differances between the calipers and they are the same (other than brand), the WRX rotor would fine since he would be using the WRX hub, and backing plate. I think the STi backing plate is taller than the WRX plate, that is why it can use larger rotors. It makes the caliper sit up higher. If he uses the smaller 06 WRX backing plate, it will place the Brembo caliper in the same position as the Subaru 2 pot which will allow for the smaller rotor.

I have the 06 rear hub, backing plate, 2 pot caliper and 06 rotor on my 98 Legacy. It fit fine with no problems at all.
iluvdrt is offline   Reply With Quote
Old 08-18-2009, 09:20 AM   #12
mav1c
Hoodbridge!
Moderator
 
Member#: 560
Join Date: Nov 1999
Chapter/Region: MAIC
Location: Woodbridge, VA
Vehicle:
2006 STi, '11 A4
Crystal Gray, Silver

Default

Quote:
Originally Posted by iluvdrt View Post
What are the differances with the Brembo caliper, and the Subaru 2 pot caliper? Just the Caliper its self? I don't think there are any differance at all other than the Subaru/Brembo sticker.

If there are no differances between the calipers and they are the same (other than brand), the WRX rotor would fine since he would be using the WRX hub, and backing plate. I think the STi backing plate is taller than the WRX plate, that is why it can use larger rotors. It makes the caliper sit up higher. If he uses the smaller 06 WRX backing plate, it will place the Brembo caliper in the same position as the Subaru 2 pot which will allow for the smaller rotor.

I have the 06 rear hub, backing plate, 2 pot caliper and 06 rotor on my 98 Legacy. It fit fine with no problems at all.
Ugh. Stop spouting wrong information. The STI rear Brembo caliper is NOT the same as the Subaru rear 2-pot. The STI rear Brembos will NOT work with the WRX rear rotor.
mav1c is offline   Reply With Quote
Old 08-18-2009, 09:25 AM   #13
Turn in Concepts
NASIOC Vendor
 
Member#: 93646
Join Date: Aug 2005
Chapter/Region: MWSOC
Vehicle:
Many Track Records
Let us help you go fast!

Default

The calipers are entirely different. Listen to mav1c.

Tony
Turn in Concepts is online now   Reply With Quote
Old 08-18-2009, 09:25 AM   #14
KNS Brakes
NASIOC Storefront Vendor
 
Member#: 125739
Join Date: Sep 2006
Chapter/Region: South East
Location: Raleigh, NC
Vehicle:
Who needs brakes?
Call: 919-420-0021

Default

Quote:
Originally Posted by iluvdrt View Post
What are the differances with the Brembo caliper, and the Subaru 2 pot caliper? Just the Caliper its self? I don't think there are any differance at all other than the Subaru/Brembo sticker.

If there are no differances between the calipers and they are the same (other than brand), the WRX rotor would fine since he would be using the WRX hub, and backing plate. I think the STi backing plate is taller than the WRX plate, that is why it can use larger rotors. It makes the caliper sit up higher. If he uses the smaller 06 WRX backing plate, it will place the Brembo caliper in the same position as the Subaru 2 pot which will allow for the smaller rotor.

I have the 06 rear hub, backing plate, 2 pot caliper and 06 rotor on my 98 Legacy. It fit fine with no problems at all.
The calipers are designed for a different sized rotor and pad so they won't line up at all.
KNS Brakes is offline   Reply With Quote
Old 08-18-2009, 09:32 AM   #15
iluvdrt
Scooby Specialist
 
Member#: 46248
Join Date: Oct 2003
Chapter/Region: RMIC
Location: DRTY Autosports Denver, Co
Vehicle:
2012 outback 2.5
sky blue

Default

Quote:
Originally Posted by mav1c View Post
Ugh. Stop spouting wrong information. The STI rear Brembo caliper is NOT the same as the Subaru rear 2-pot. The STI rear Brembos will NOT work with the WRX rear rotor.
Quote:
Originally Posted by Turn in Concepts View Post
The calipers are entirely different. Listen to mav1c.

Tony
That’s what I have been asking! What are the differences, but everyone kept saying stuff about the rotors.

Thank you for clearing that up!
iluvdrt is offline   Reply With Quote
Old 08-18-2009, 12:04 PM   #16
PARANOID56
Scooby Guru
 
Member#: 22035
Join Date: Jul 2002
Chapter/Region: SCIC
Location: San Diego, CA
Vehicle:
2003 Brocoma DCab
71 FJ40, 13 DRZ400SM

Default

just use the bracket and custom DBA rotor from dan at fastwrx and be done with it.
PARANOID56 is offline   Reply With Quote
Old 08-18-2009, 12:21 PM   #17
mav1c
Hoodbridge!
Moderator
 
Member#: 560
Join Date: Nov 1999
Chapter/Region: MAIC
Location: Woodbridge, VA
Vehicle:
2006 STi, '11 A4
Crystal Gray, Silver

Default

Quote:
Originally Posted by PARANOID56 View Post
just use the bracket and custom DBA rotor from dan at fastwrx and be done with it.
I think this is the easiest, quickest solution.
mav1c is offline   Reply With Quote
Reply

Thread Tools
Display Modes

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
I am confused and need some help please. iluvdrt Newbies & FAQs 5 02-14-2010 11:43 AM
need some help with my vf39 hybrid please W0R2X Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 1 03-12-2009 10:33 PM
need help with my utec log....please topgrinder Engine Management & Tuning 3 03-24-2003 01:13 PM
I need help with my Ground Controls-Please MY99 2.5GT Brakes, Steering & Suspension 15 07-04-2001 03:37 PM


All times are GMT -4. The time now is 09:53 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.