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Old 09-02-2002, 02:43 AM   #1
Clegg
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Default H6 Rear Brake setup on 02RS

OK I just realized ( Via the help of GLWagon) that with the Stock RS Front Calipers, I could rather simply make a H6 rear brake setup on my RS. I am going to put WRX Calipers/rotor on the front of the RS, and if I got the H6 rear rotor, what else would I need to adapt the Front RS calipers to run as the rear brakes on the H6 rotor? did some searches and didnt fund much conclusive.
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Old 09-02-2002, 11:48 AM   #2
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The front calipers will NOT mount on the rear. The mounting holes are not in the same places. The front caliper brackets are larger than the rear, so the mounting holes are further apart. Plus, even if they did fit, the H6 Legacy rotors are solid, and MUCH thinner than the front, vented rotors, so the front caliper wouldn't have the travel to reach the thinner solid discs.

If you want to upgrade to the rear H6 rotors, you need to get the H6 caliper brackets, and use the existng rear calipers.
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Old 09-02-2002, 11:59 AM   #3
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just currious where you got your info from?

I just looked at the pages from the Subaru service manual. and it looks like you would need a new support bracket, and thats about it, but the actually dual pot caliper is the same
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Old 09-02-2002, 01:53 PM   #4
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http://forums.nasioc.com/forums/show...ake+conversion

the best I could find so far...
looks like it retains the factory caliper... replaces rotor, pads & support bracket...

At least the front brackets, rotors, & pads you have now are a definate improvement over 2.5 stock

Last edited by GLwagon; 09-02-2002 at 02:04 PM.
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Old 09-02-2002, 08:50 PM   #5
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Usually to swap f/r brakes like that you'd need to fabricate a custom caliper bracket. Yesterday I was all set to put the H6 rotors in the rear, but it turned out I had the wrong bracket, which is the front bracket for the WRX brakes. It doesn't fit either the hub or the caliper. So if you are looking for a front WRX caliper bracket I have a set.
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Old 09-02-2002, 08:52 PM   #6
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With the right bracket ( a H6 rear brake bracket) it works. just talked to someone who did it
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Old 09-02-2002, 08:53 PM   #7
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I did the rear swap, just need the rear rotors and brackets if your pads are kinda new, if not, do like me and get a nice set of rear pads (I got Endless VitaNova)

You'll notice the car won't nosedive as bad when you get on the brakes.

Leo
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Old 09-02-2002, 09:03 PM   #8
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Quote:
Originally posted by Clegg
With the right bracket ( a H6 rear brake bracket) it works. just talked to someone who did it
Swapped the front calipers to the rear? I know with the H6 bracket it's easy to just use the rotors with the stock 1-pot caliper, you just have to bend back the dust shields. But swapping the caliper over is another story. Isn't the 02 RS caliper the same as the WRX one only in a different bracket for use with the smaller rotors?
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Old 09-02-2002, 09:13 PM   #9
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Umm I believe you are able to put the 2 Pot RS calipers on the back with the H6 bracket. Someone correct me if I am wrong with that, but thats what I have heard from 2 people.
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Old 09-02-2002, 09:47 PM   #10
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Quote:
Originally posted by Clegg
Umm I believe you are able to put the 2 Pot RS calipers on the back with the H6 bracket. Someone correct me if I am wrong with that, but thats what I have heard from 2 people.
If it were that easy, WRX people would be swapping the front calipers to the back when they upgrade they front. The H6 rear brackets are made to fit the H6 1-pot calipers, which are the same as the stock rear calipers on the RS and WRX. You can't magically bolt the front 2-pot calipers to brackets not made for them. You would also need a new backing plate and different rotors, because as another poster said, they are meant for thicker vented rotors... I only know of one rally team that did this using custom brackets, different rotors, and an aftermarket hydraulic handbrake.
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Old 09-02-2002, 09:52 PM   #11
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Yep I mis understood! using the 1Pot in the back with the H6 brace and H6 rotor.
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Old 09-03-2002, 01:56 PM   #12
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Right. You have the have the H6 Bracket and H6 rotor. You can NOT just swap the front 2-pots to the rear, as stated by many people in this thread.

I learned the hard way when I was sent the brackets for the front WRX calipers when I did my H6 upgrade, and the fit wasn't even close.
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Old 09-03-2002, 02:08 PM   #13
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Doesn't the 02+ RS and 02+ WRX have the same brakes?
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Old 09-03-2002, 04:09 PM   #14
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Default Funny thing

I know where all this confusion came from. The caliper brackets for the front of the WRXs and the rear "H6" transpose only 2 numbers. This has happened before and obviously has sprouted wings. Here's the thread where it all started, read closely:

http://forums.nasioc.com/forums/show...ht=rear+brakes



Quote:
Doesn't the 02+ RS and 02+ WRX have the same brakes?
The WRX and RS share rear brakes, but the front calipers are different on the RSs. Not interchangeable with WRX caliper brackets and they use different shoes.

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Old 09-03-2002, 04:44 PM   #15
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If you guys dont mind me asking....I'm looking into new brakes(coming to the 50,000 mile mark)
How does this whole situation fit in with a '00 RS?
I'm talking about the WRX fronts and H6 rears.....
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Old 09-03-2002, 05:00 PM   #16
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I know the WRX front brakes will work on the RS (you need the rotors and caliper bracket) and the H6 should work (agian caliper brackets and rotors) with the RS rear calipers. If someone knows otherwise please chime in, cause I plan on doing both.

TMK
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Old 09-03-2002, 05:31 PM   #17
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with all that being said...would using stock '00 RS calipers on the larger rotor make a huge braking difference?
or/also would you(can you?) put wrx calipers on the front?
(I'm uniformed on the difference between the 2 so bear with me please.)
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Old 09-03-2002, 05:40 PM   #18
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As far as I know the front calipers for a GC8 RS and a WRX are the same. The only thing that changed over the years was the rotor size.

TMK

Last edited by Those Meddling Kids; 09-03-2002 at 06:17 PM.
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Old 09-03-2002, 05:42 PM   #19
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Quote:
Originally posted by Camaroman
with all that being said...would using stock '00 RS calipers on the larger rotor make a huge braking difference?
or/also would you(can you?) put wrx calipers on the front?
(I'm uniformed on the difference between the 2 so bear with me please.)
Pre '02 RS's and '02-on WRX's use the same calipers. The rotors are larger, along with a caliper bracket that mounts the calipers out further. That's why WRX rotors/caliper brackets are such a popular upgrade for pre '02 RS owners.
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Old 09-03-2002, 06:02 PM   #20
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wow we realllly need a better brake faq

my understanding on rear brakestaken from various sources
(assuming disc not drum)
1990 leagacy-1999 legacy 266mm x 10mm solid
1991-1994 legacy turbo 266mm x18mm vented
1993 impreza-2002impreza 266mm x 10mm solid
2000+legacy (not just the h6) 290mmx10mm solid

front calipers on the front ..rear on the rear .. not swapable

H-6 (2000+ legacys) 290x10 rotors are not vented

the two pot rear brakes are the 290x18 ..(one pot on either side not two next to eachother).. and as far as i know they will only work with hubs that connect to r180 diffs.. differnt bolt spacing ..

Last edited by Jaxx; 09-03-2002 at 06:36 PM.
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Old 09-03-2002, 07:50 PM   #21
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Default Jaxx

Has been following and participating in a thread in the Legacy forum that covers the rear brakes on Subies. You might want to give it a read, there is an encyclopedia of Subaru rear brake info there.

At some point between 98 and 00 all the Subaru models changed the style of their rear calipers/brackets. Imprezas/Foresters sometime in 98 and Legacys/OBs in 2000. You need to find out if you have the old or new style caliper to determine what your best options are. Pics are in the thread and it is easy to tell the difference on sight.

Here it is:http://forums.nasioc.com/forums/show...hreadid=234120

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Old 09-03-2002, 09:54 PM   #22
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subysouth

Thanks for the link. Silly me would have never looked in the Legacy Forum. douh!

TMK
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Old 09-05-2002, 12:48 AM   #23
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Default yea

There is a lot of info good info there. I am gonna do a little more organized post of the GT-B rear brake installation(with pics) on my car when they get here.

Til then that thread covers just about every possible rear brake option. Don't be put off by the title, it started by talking about the "H6" upgrade but a lot off good questions got asked and....

subysouth
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Old 09-08-2002, 02:35 PM   #24
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Question question...

Hate to bring a post back from the dead but I had a question regarding interchanging certain brake parts.

I currently have the rear vented 266 x 18 mm Legacy Turbo brakes on my WRX. What would prevent me from using Legacy H6 caliper brakets and Subaru 2-pot rear disks (290 x 18 mm) with the 1-pot calipers I have now?

I know the width of the two disks are the same (18mm), but I've heard the hub/backing plate is different... can it be done?

TIA,

-Mike.
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Old 09-08-2002, 10:48 PM   #25
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Default mpaone

I had that idea a few months back.

The problems are a) the "H6" barcket has a narrow opening designed for a 10mm thick rotor not the 18mm thick rotor b) the Legacy turbo caliper will not bolt to the "H6" bracket, neither will any of the "old" style calipers. See my thread linked above for pics of the older and newer style rear calipers. You clearly have the old style caliper and one thats too wide and the wrong shape for the "H6" upgrade as well.

You need to try the JDM route with me if you want the 290x18mm rotor.

subysouth
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