Everything we know about PP Brembos

[timurrrr]

Found some interesting info on piston sizes and brake bias

Originally Posted by 86league

FYI - I rebuilt a set of stock front calipers today. Measured the pistons - looks like 40.4mm, not the 42.8 in the table posted previously.

Essex tells me their calculations show the stock system system at 65.5% front bias.

Parts catalog shows that the front/rear pistons are same part number, so should be the same diameter. Using 40.4mm front and 40.4mm rear with the radial depth info posted above I get 65.56%. Very close to Essex's number.

[warhawk03]

Beyond the parts for the calipers, pads, and discs front and rear, what are the other parts needed to switch over from the non-PP brakes? Looking at the diagram, it looks like maybe a bracket and the dust shield on the front and the rears bolt right up?

[86league]

Originally Posted by timurrrr

Found some interesting info on piston sizes and brake bias

To clarify - That image and #'s are for the non-brembo/stock brake system and was taken from this thread : https://www.ft86club.com/forums/showthread.php?t=140940 attempting to calculate the bias of using Brembo rear brakes with a stoptech front kit. Part of that was trying to find out how much they would change front/rear bias. He had calculations of the stock system and the Brembo -- I was pointing out that his stock values were not correct. I went on to verify stock/brembo numbers...

Below are figures/calcs for the stock/brembo/AP sprint combos. If anyone knows of any errors here, let me know.



At the bottom are the #'s Essex quoted me for a non-brembo/stock system and a AP Sprint kit front and non-brembo/stock rear front %age. My calcs are pretty close to the Essex numbers, so I think the math is mostly correct - probably good enough to be used to compare the options since they are all done the same way.

[Grady]

My current set up.

DBA 5654GLDXS-10 5000 Series 2-Piece Drilled and Slotted Disc Brake Rotor
DBA 42656S-10 rear
Front pads Project U Racing 999 R906 (Suggested by CSG)
Rear pads Project U Club Racer PCR09F906 (Suggested by CSG)

I did start with the Hawk ceramic pads. They worked great on the street, but were SCARY! At 100 MPH. You would have a solid brake with no braking authority. The Project U pads have a lot better bite.

[timurrrr]

Originally Posted by timurrrr

OEM Subaru part numbers

• ...
• 26297CA010 caliper repair kit front
• 26697XA000 caliper repair kit rear
• ...

Hey folks, does anyone have photos of what comes in the 26297CA010 and 26697XA000 kits?

I've heard there are cheaper kits that have just the outer piston dust boots, does anyone know the part numbers for those?

[timurrrr]

For the record, even though parts.subaru.com displays 26297CA001, 26297CA000, 26697XA001, and 26697XA000
in the parts lists for 2017-2020 BRZ Brembo brakes, the "What this fits" tab
reveals that these are compatible with 2013-2016 MY BRZs, so are for base brakes.

The parts lists for the 2018 BRZ STI (which only came with Brembos) don't mention those part numbers.

[DarkPira7e]

Originally Posted by FordWorker

Thanks for sharing mate! I'll check those wheels hehe

We're onto you.

[Tcoat]

Originally Posted by DarkPira7e

We're onto you.

Yep the edits with the links to the essay writing/fake Viagra/passports/cheap whatevers/etc should show up any time now.

[DarkPira7e]

Originally Posted by Ultramaroon

I think replies just confirm activity for the bots. It's like replying to spam email asking to be removed from the list.

"Yeah... we'll get right on that."

We're onto you too

[timurrrr]

Can we stay on topic?

[timurrrr]

Originally Posted by timurrrr

Hey folks, does anyone have photos of what comes in the 26297CA010 and 26697XA000 kits?

I've heard there are cheaper kits that have just the outer piston dust boots, does anyone know the part numbers for those?

Just ordered Centric 143.34039 and 143.35031, according to their website they fit our PP Brembos.

[N_Raged]

Originally Posted by timurrrr

Just ordered Centric 143.34039 and 143.35031, according to their website they fit our PP Brembos.

Dumb question: is it one kit per caliper or one kit for two calipers?

[timurrrr]

Originally Posted by N_Raged

Dumb question: is it one kit per caliper or one kit for two calipers?

I believe it's one kit per caliper and you need 2+2 to replace all seals.

[Alfs]

Originally Posted by timurrrr

Given how much positive feedback I got on the topic about wheel fitment for PP Brembos,
and how many things most people still don't know about them,
I decided to start a new topic about the brakes themselves.

OEM Subaru part numbers

• 26300FE001 rotor front (single)
• 26700CA000 rotor rear (single)
• 26296FE100 pads front (4 pads)
• 26696FG000 pads rear (4 pads)
• 26297CA010 caliper repair kit front
• 26697FG000 caliper repair kit rear
• 26292CA070 caliper front left
• 26292CA060 caliper front right
• 26692CA070 caliper rear left
• 26692CA060 caliper rear right
• Anything else worth mentioning?

Exploded views: front, rear.

Torque specs
Front caliper bolts: 88.5 ft·lb or 120 Nm (19 mm bolts, part number: 901120131)
Rear caliper bolts: 53.8 ft·lb or 73 Nm (17 mm bolts, part number: 901000326)
Bleeder valves: 14.8 ft·lb or 20 N·m (13 mm?)

The rotors have two M8x1.25 holes each for bolts to simplify removal.

Piston sizes
4x40 mm front [citation needed]
2x40 mm rear [citation needed]

Compatible rotors
Fronts are 326x30mm, rears are 316x20mm

• Centric C-TEK Standard 121.47019 front
• Centric C-TEK Standard 121.47043 rear
• Centric Premium 125.47019 front
• Centric Premium 125.47043 rear
• DBA 654-10 front
• DBA 4654S-10 front
• DBA 5654GLDXS-10 front
• DBA 42656S-10 rear
• Girodisc A1-007 front (more info)
• Paragon 2-piece front (link)

Compatible pads

• FMSI D numbers: D1001 front, D961 rear
• WVA codes: 23092 or 23325 front, 21580 or 23323 rear
• CSG.C1.1001.15 front
• CSG.C2.1001.15 front
• CSG.C2.961.14 rear
• CSG.CE2.1001.15 front
• CSG.CX1.1001.15 front
• CSG.CE1.961.14 rear
• DBA DB1678XP front (link)
• DBA DB1521XP rear (link)
• Hawk HPS HB453F.585 front
• Hawk HPS HB180F.560 rear
• PowerStop Z23 Z23-1001 front
• PowerStop Z23 Z23-961 rear
• PowerStop Z23 Z26-1001 front
• PowerStop Z23 Z26-961 rear
• Project U Racing 999 R906
• Project U Club Racer PCR09F906
• StopTech Sport 309.10010 front
• StopTech Sport 309.09610 rear

Please post any other useful information you might know about these!

Thx for this useful info that I've been searching for long.