Full Front and Rear 08-12 STI Brakes Swap - Page 5 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Jamifra · 12-13-2012, 08:40 PM

Quote:

Originally Posted by King Tut

I used a set of Goodridge SS brake lines meant for the BRZ, so I am sure you can get the Stoptechs to work as well. The 04 sti rotors will work in the front because they are drilled for 5x100, but not in the rear is my understanding.

i have a question.. that are the specs on your wheels?

i have volk te37sl 18x8.5 35 offset in the front. does the rims clear the brembo?

King Tut · 12-13-2012, 08:47 PM

I would think those would clear. I have 18x8 +42s.

Longhorn248 · 12-14-2012, 01:26 AM

Very nice job!

CrazyWookiee · 12-14-2012, 01:56 AM

Looks great! Matches the car perfectly.

omegared19 · 12-17-2012, 01:25 PM

Ok, Tut, love the work/look. I'm working on it as we speak. Did your used caliper set come with the original carriers/brackets to bolt up to the knuckle, or are you able to use the BRZ carriers?

OrbitalEllipses · 12-17-2012, 01:41 PM

Quote:

Originally Posted by omegared19

Ok, Tut, love the work/look. I'm working on it as we speak. Did your used caliper set come with the original carriers/brackets to bolt up to the knuckle, or are you able to use the BRZ carriers?

There are no brackets for these; they mount using the dog-ears on the caliper. Spacing between boltholes on the dog-ears should be the same as the knuckle. Any brackets that came with your STI calipers are merely futile attempts by Subaru to make the calipers quieter.

Hotlinked image:

The brackets are integrated into the structure of the caliper.

More hotlink:

The circled portions are brackets that mount to the rear between the knuckle and caliper; they are harmonic dampeners that Subaru used in an attempt to make the calipers more livable.

omegared19 · 12-17-2012, 01:45 PM

Good to know. This is going to make things a lot easier.

Next question, are the brake lines the same or do I need to get a conversion kit?
(ie: is the Brembo side of the braided line different than the factory BRZ side?)

OrbitalEllipses · 12-17-2012, 01:55 PM

Quote:

Originally Posted by omegared19

Good to know. This is going to make things a lot easier.

Next question, are the brake lines the same or do I need to get a conversion kit?
(ie: is the Brembo side of the braided line different than the factory BRZ side?)

I used 04 STI brake lines on my WRX stock calipers....so YMMV. Don't know if the banjo is the same, but I'd venture it is. Buy aftermarket BRZ lines and see if they fit, if not...return or sell.

King Tut · 12-18-2012, 03:01 PM

Quote:

Originally Posted by omegared19

Next question, are the brake lines the same or do I need to get a conversion kit?
(ie: is the Brembo side of the braided line different than the factory BRZ side?)

I used brake lines meant for the BRZ so that the lengths would be correct. I have never seen STI brake lines, so I didn't know if they would work. The banjo bolt and threads are the same for the Brembo calipers and OEM BRZ calipers, but the brake line won't line up like it is intended to on the calipers due to each caliper having different notches on the back of the caliper for the hard line to rest on.

GTB/ZR-1 · 12-27-2012, 12:46 PM

Quote:

Originally Posted by OrbitalEllipses

There are no brackets for these; they mount using the dog-ears on the caliper. Spacing between boltholes on the dog-ears should be the same as the knuckle.

Guys, I actually think there will be a possible weight-savings w/ lighter rotors. I did some math--hope this helps some of you...

The stock front calipers & caliper brackets are 11.6lbs--the STi caliper is 8.7. So, if you can find a rotor lighter than the stock 86 rotors 17lbs(Girodiscs are 16.5lbs), there'd be an overall weight-savings of abt 3.4lbs/corner.

On the rears, the STi calipers are 5.9lbs, compared to 5.8lbs stock--so a push, there. But the rotors would net you just over 2lbs/corner.
Total drop in rotational/unprung ~11lbs--not bad.

Granted, it's definitely pricier, but if you can come across all the parts used & priced right... Just throwing it out there.

OrbitalEllipses · 12-27-2012, 12:54 PM

^2PC rotors are $700/pair and that's really the only way to drop mass from those heavy rotors. Once at that price point I'd just consider an aftermarket BBK made for the car; though I have yet to see one I like that is also good DD material.

kurbkilla · 12-27-2012, 01:36 PM

Thanks for the write up this is the type of brake upgrade im looking to 4 piston front/2 rear. Is it possible to fleash out the steps more with pics and then pin it?

kmbkk · 12-29-2012, 07:21 PM

How hard woulod it be to get the STI logo off the calipers? I may go this route, but don't think the STI logo would look right on an FR-S.

King Tut · 12-30-2012, 07:33 PM

The STI logo is painted on so you would have to sand it off or repaint over

12-13-2012, 08:47 PM	#58
King Tut NASA SpecE30 Racer Join Date: May 2012 Drives: 2006 Honda S2000 Location: Gulf Breeze, FL Posts: 7,279 Thanks: 607 Thanked 5,759 Times in 3,055 Posts Mentioned: 274 Post(s) Tagged: 10 Thread(s)	I would think those would clear. I have 18x8 +42s. __________________ - King Tut Street/Track Car: 2006 Honda S2000 TT3 \|\| Race Car: 1987 BMW 325is SpecE30 \|\| Tow Vehicle: 2014 RAM 1500 EcoDiesel Sold Cars: 2012 BMW M3 \|\| 2013 Subaru BRZ \|\| 2012 Porsche Cayman R \|\| 2009 Chevrolet Z06 \|\| 2009 BMW M3 \|\| 2004 BMW M3 \|\| 2004 Nissan 350Z

12-14-2012, 01:56 AM	#60
CrazyWookiee Senior Member Join Date: Jun 2012 Drives: Whiteout FR-S Location: Canada Posts: 546 Thanks: 375 Thanked 349 Times in 165 Posts Mentioned: 7 Post(s) Tagged: 1 Thread(s)	Looks great! Matches the car perfectly. __________________ "I'm the real Peter Lau" - Peter Lau

12-30-2012, 07:33 PM	#70
King Tut NASA SpecE30 Racer Join Date: May 2012 Drives: 2006 Honda S2000 Location: Gulf Breeze, FL Posts: 7,279 Thanks: 607 Thanked 5,759 Times in 3,055 Posts Mentioned: 274 Post(s) Tagged: 10 Thread(s)	The STI logo is painted on so you would have to sand it off or repaint over __________________ - King Tut Street/Track Car: 2006 Honda S2000 TT3 \|\| Race Car: 1987 BMW 325is SpecE30 \|\| Tow Vehicle: 2014 RAM 1500 EcoDiesel Sold Cars: 2012 BMW M3 \|\| 2013 Subaru BRZ \|\| 2012 Porsche Cayman R \|\| 2009 Chevrolet Z06 \|\| 2009 BMW M3 \|\| 2004 BMW M3 \|\| 2004 Nissan 350Z Last edited by King Tut; 12-30-2012 at 09:45 PM.

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12-27-2012, 12:54 PM	#67
OrbitalEllipses Banned Join Date: Jan 2012 Drives: Attitude Location: MD Posts: 10,046 Thanks: 884 Thanked 4,889 Times in 2,902 Posts Mentioned: 123 Post(s) Tagged: 4 Thread(s)	^2PC rotors are $700/pair and that's really the only way to drop mass from those heavy rotors. Once at that price point I'd just consider an aftermarket BBK made for the car; though I have yet to see one I like that is also good DD material.

12-27-2012, 01:36 PM	#68
kurbkilla Senior Member Join Date: Nov 2012 Drives: Scion FRS (Asphalt) Location: Camarillo Posts: 217 Thanks: 63 Thanked 26 Times in 19 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Thanks for the write up this is the type of brake upgrade im looking to 4 piston front/2 rear. Is it possible to fleash out the steps more with pics and then pin it?

12-29-2012, 07:21 PM	#69
kmbkk First 86 Driver Baby! Join Date: Jan 2012 Drives: FR-S, Flex Location: Williamsburg, VA Posts: 1,755 Thanks: 515 Thanked 518 Times in 352 Posts Mentioned: 32 Post(s) Tagged: 3 Thread(s)	How hard woulod it be to get the STI logo off the calipers? I may go this route, but don't think the STI logo would look right on an FR-S.

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