STi brake project on 08' Beca

[rjdtribeca]

Hi guys,

I'm in need of new brakes and after much research, I've decided to swap my front factory calipers & rotors w/ STi C&R's. They both share the same bolt pattern, 5x114.3. For reference, the 08' Tribeca and 05' STi specs are:

Tribeca
FRONT: Rotor Diameter x Thickness (in): 12.3 x 1.2
STi
FRONT: Rotor Diameter x Thickness (in): 12.8 x 1.2

For the front, I ordered 05' Brembo STi calipers, DBA 5000 slotted rotors, Cosworth Streetmaster pads & Goodridge Stainless Steel lines.

I will post pics of the project as soon as the parts arrive (09.09.11). I haven't seen any write-ups or pics before, so hopefully I can shed some light if anyone is thinking about this project as well.
:banana:
http://img696.imageshack.us/img696/7933/dsc2865l.jpg
By rjdsti (http://profile.imageshack.us/user/rjdsti) at 2011-09-12
http://img855.imageshack.us/img855/2844/dsc2890q.jpg
By rjdsti (http://profile.imageshack.us/user/rjdsti) at 2011-09-12http://img16.imageshack.us/img16/4848/dsc2908y.jpg
By rjdsti (http://profile.imageshack.us/user/rjdsti) at 2011-09-12http://img824.imageshack.us/img824/2132/dsc2907y.jpg
By rjdsti (http://profile.imageshack.us/user/rjdsti) at 2011-09-12http://img217.imageshack.us/img217/6996/dsc2900j.jpg
By rjdsti (http://profile.imageshack.us/user/rjdsti) at 2011-09-12http://img689.imageshack.us/img689/4863/dsc2871p.jpg
By rjdsti (http://profile.imageshack.us/user/rjdsti) at 2011-09-12http://img691.imageshack.us/img691/2250/dsc2875c.jpg
By rjdsti (http://profile.imageshack.us/user/rjdsti) at 2011-09-12http://img35.imageshack.us/img35/8105/dsc2877q.jpg
By rjdsti (http://profile.imageshack.us/user/rjdsti) at 2011-09-12http://img27.imageshack.us/img27/3636/dsc2879h.jpg
By rjdsti (http://profile.imageshack.us/user/rjdsti) at 2011-09-12http://img822.imageshack.us/img822/2104/dsc2883b.jpg
By rjdsti (http://profile.imageshack.us/user/rjdsti) at 2011-09-12http://img24.imageshack.us/img24/8452/dsc2913h.jpg
By rjdsti (http://profile.imageshack.us/user/rjdsti) at 2011-09-12http://img696.imageshack.us/img696/4879/dsc2923e.jpg
By rjdsti (http://profile.imageshack.us/user/rjdsti) at 2011-09-12

[AMPc]

Hi. I'm very interested in this mod, because I have to change brakes in next months and for the price that I get from Subaru, I can get a much better brake kit. I'm thinking in:

- STI Calipers (Brembo Oro Series)
- EBC 3GD Sport Rotors
- EBC RedStuff Pads
- Goodridge Steel lines

We have some colaborators in spanish main Subaru Forums, the help us to get accesories and pieces for our cars saving some money.

[rjdtribeca]

05' STi Brembo's on 08' Tribeca:
http://img690.imageshack.us/img690/6837/dsc2945g.jpg
By rjdsti (http://profile.imageshack.us/user/rjdsti) at 2011-09-18http://img15.imageshack.us/img15/8162/dsc2949a.jpg
By rjdsti (http://profile.imageshack.us/user/rjdsti) at 2011-09-http://img813.imageshack.us/img813/2875/dsc2947l.jpg
By rjdsti (http://profile.imageshack.us/user/rjdsti) at 2011-09-http://img840.imageshack.us/img840/8484/dsc2943.jpg
By rjdsti (http://profile.imageshack.us/user/rjdsti) at 2011-09-http://img12.imageshack.us/img12/6264/dsc2942g.jpg
By rjdsti (http://profile.imageshack.us/user/rjdsti) at 2011-09-http://img6.imageshack.us/img6/6161/dsc2941n.jpg
By rjdsti (http://profile.imageshack.us/user/rjdsti) at 2011-09-http://img841.imageshack.us/img841/1416/dsc2940e.jpg
By rjdsti (http://profile.imageshack.us/user/rjdsti) at 2011-09-18http://img585.imageshack.us/img585/4052/dsc2938.jpg
By rjdsti (http://profile.imageshack.us/user/rjdsti) at 2011-09-18
http://img31.imageshack.us/img31/6561/dsc2935j.jpg
By rjdsti (http://profile.imageshack.us/user/rjdsti) at 2011-09-18
http://img18.imageshack.us/img18/5238/dsc2925u.jpg
By rjdsti (http://profile.imageshack.us/user/rjdsti) at 2011-09-18

[NatetheSkate]

Looks BADASS!
I'm hoping this setup would work with my '06. Hate to assume they are the same. Anyone know?

[rjdtribeca]

Looks BADASS!
I'm hoping this setup would work with my '06. Hate to assume they are the same. Anyone know?

From what I know I believe they will fit just fine. Mine were a direct bolt on affair, no modifications necessary except the removal of the factory dust shield.

[AMPc]

There are no differences between brake system in 2006-2007 and >2008 Tribecas.

It just must be fit OK.

[stevieb143]

I am just wondering why have subaru designed the hubs like this

http://imageshack.us/photo/my-images/15/dsc2949a.jpg/

I didnt realise they were like that.. I thought the wheel studs were full length from the disc all the way to the wheel.

[NatetheSkate]

I am just wondering why have subaru designed the hubs like this

http://imageshack.us/photo/my-images/15/dsc2949a.jpg/

I didnt realise they were like that.. I thought the wheel studs were full length from the disc all the way to the wheel.

Hey, Steveib, there is a spacer on the hub, so the stock wheels will clear the new MUCH bigger caliper. Notice the five bolts between the five new lugs. Those are the stock bolts on the stock lugs holding on the spacer. The wheel will then be attached using the new lugs.

[NatetheSkate]

There are no differences between brake system in 2006-2007 and >2008 Tribecas.

It just must be fit OK.

Very cool, now I will just have to push the purchase order thru the "boss" (wife) lmao!!!:naughty:

[AMPc]

Hi rdjtribeca... a couple of questions.

- Have you noticed a better braking power with the new kitt?? Isn't necesary to change the master cylinder for the new Brembos?? I don't know if the STI and Tribeca master cylinders are the same, or at least if the Tribeca's one has enought power to use with the Brembos.

- Could you do me a favor, please?. I have a Brembo caliper to test in my car if without spacers the rim touches the caliper, but to avoid removing the caliper if it's very evident that the rim will touch the caliper... could you measure the distance between the rim and the caliper at the closer point??
Knowing you are using 30 mm spacers, your measure - 30 mm will be the distance without them. If that distance is <30 mm, that calipers will touch the rim and I won't try installing the caliper. I think in the STI de distance between the caliper and rim is just 5-7 mm or so.

Thanks a lot.

[eddie_gt4]

(...) Mine were a direct bolt on affair, no modifications necessary except the removal of the factory dust shield.
oddly enough... maybe it's because of two-part rotors?

few days ago I installed front brakes from STI MY'09 to my B9 and the removal of original dust shield wasn't required ;)

[h82bslo]

man i'm jealous.

[eddie_gt4]

(...) a couple of questions.
If you don't mind I'll to anwser these questions :)

- Have you noticed a better braking power with the new kitt?? Isn't necesary to change the master cylinder for the new Brembos?? I don't know if the STI and Tribeca master cylinders are the same, or at least if the Tribeca's one has enought power to use with the Brembos.
better braking power?
with OEM pads - rather no in terms of stopping distance, but the feeling/modulation of brakes now is definetely better :tup:
and the most important thing - vibration from rotors is gone, brakes are so smooth now :cool:

master cylinder?
no need to change it...

- Could you do me a favor, please?. I have a Brembo caliper to test in my car if without spacers the rim touches the caliper, but to avoid removing the caliper if it's very evident that the rim will touch the caliper... could you measure the distance between the rim and the caliper at the closer point??
Knowing you are using 30 mm spacers, your measure - 30 mm will be the distance without them. If that distance is <30 mm, that calipers will touch the rim and I won't try installing the caliper. I think in the STI de distance between the caliper and rim is just 5-7 mm or so.

Thanks a lot. OEM wheels don't fit over the front STI BREMBO brakes, that's clear... but it seems that the 4-5mm spacer will solve the problem at least in the case of original B9 wheels (it's still safe to use 4-5mm spacer with original studs)
next spring I'm going to re-install OEM wheels so at that point I'll write something concrete :D

[Duke_kz]

Hello! And what about 4pot front break calipers from WRX MY06-...? They have the same rotors (316mm), except that they have 5*100mm holes. Does they fit tribecas steering knuckle mount?

[eddie_gt4]

Hello! And what about 4pot front break calipers from WRX MY06-...? They have the same rotors (316mm), except that they have 5*100mm holes. Does they fit tribecas steering knuckle mount?
USDM WRX's with 4-pot's (MY'06-07) have small rotors - 294/295mm...
caliper itself will fit, but the WRX/FXT rotors are way too small ;)

[Duke_kz]

There is a mistake in DBA (http://www.dba.com.au/product-search) catalog? They say that 42650SL rotors with 316/30mm dia will fit WRX 06MY-

[eddie_gt4]

There is a mistake in DBA (http://www.dba.com.au/product-search) catalog? They say that 42650SL rotors with 316/30mm dia will fit WRX 06MY-
yes, it's a mistake (there are some mistakes in DBA catalogs)

[Duke_kz]

Ohhh, its bad news. I planned to try them on my tribeca. Sti calipers is expensive and I see in first posts, that tribecas native wheels will not combine with them.
Is there any 4pot brake calipers on the other Subaru cars, that will fit tribeca?

[eddie_gt4]

Ohhh, its bad news. I planned to try them on my tribeca. Sti calipers is expensive and I see in first posts, that tribecas native wheels will not combine with them.
Is there any 4pot brake calipers on the other Subaru cars, that will fit tribeca?
actually you can use 4-pot's from WRX, but on a Tribeca you'll want/need a bigger rotors (OEM 294x24mm rotors from WRX are way too small)

you can choose something lik this, but imho it's too expensive... it's better to look for a used front calipers/complete brakes from an STI

http://www.godspeedbrakes.co.uk/~godspeed/product.php?id_product=121

[AMPc]

Ohhh, its bad news. I planned to try them on my tribeca. Sti calipers is expensive and I see in first posts, that tribecas native wheels will not combine with them.
Is there any 4pot brake calipers on the other Subaru cars, that will fit tribeca?

Yeah, I've tested it a few days ago. STI calipers can't be used without spacers with native wheels.

[eddie_gt4]

Yeah, I've tested it a few days ago. STI calipers can't be used without spacers with native wheels.
I'm just corious: according to your measurements, how thick spacer is needed?

[AMPc]

I'm just corious: according to your measurements, how thick spacer is needed?

About 10 mm to be sure is enought space for heating dilatation. With a 10 mm spacer the free space between caliper and rim would be about 5 mm.

[TomiT]

Here is mine brake project results...

Brembos from MY10 STi Spec-C

Front

http://www.saunalahti.fi/boiv/Tribeca/Tribeca%20STi.jpg

http://www.saunalahti.fi/%7Eboiv/Tribeca/Tribeca%20STi%20Brembos.jpg

Rear

http://www.saunalahti.fi/%7Eboiv/Tribeca/STi%20Brembos%20rear.jpg

From rear, I had to lower/machine the rear caliber brackets abrox 8mm, the front was easy, just bolt on... ;)

Next new Enkei RPF1 wheels 19x9.5" ET42 :rolleyes:

[eddie_gt4]

(...) From rear, I had to lower/machine the rear caliber brackets abrox 8mm, the front was easy, just bolt on... ;) (...)
do you have any photos of tooled rear calipers?

[TomiT]

do you have any photos of tooled rear calipers?

Sorry No...:( The OEM Caliber bracket is +20mm thick, so we machine 8mm off that surface. Thats OK, and now rotor is almost center of caliber...Stock beca rear rotor fit perfectly with tose Brembos.

NOTE!! BRACKET/CALIBER muts be on the same line with the rotor, be carefully when you machine the surface!!!

Also you have to cut a piece of that rotor cover sheet metal, otherwise caliber cant fit. Snips are correct tool for that job...

Sorry my bad English :D

[eddie_gt4]

Sorry No...:( The OEM Caliber bracket is +20mm thick, so we machine 8mm off that surface. Thats OK, and now rotor is almost center of caliber...Stock beca rear rotor fit perfectly with tose Brembos.
that's good news! :)

NOTE!! BRACKET/CALIBER muts be on the same line with the rotor, be carefully when you machine the surface!!!
can you explain this part with more details?

Sorry my bad English :D no problem, my English is also bad :o:lol:

[TomiT]

can you explain this part with more details?



When you machine the calibers ( or some workshop ) you/they must be sure
to machine exactly 8mm from both brackets, otherwise the caliber is not in same line with the rotor, example if you take 9mm from upper barcket and 7mm from lower bracket the caliber is not in the same line with the rotor...

Also when they machine the brackets the caliber must be in the line with rotor as vertically as horizontally... :tup:

[eddie_gt4]

When you machine the calibers ( or some workshop ) you/they must be sure
to machine exactly 8mm from both brackets, otherwise the caliber is not in same line with the rotor, example if you take 9mm from upper barcket and 7mm from lower bracket the caliber is not in the same line with the rotor...

Also when they machine the brackets the caliber must be in the line with rotor as vertically as horizontally... :tup:
ok, thanks, now is everything clear for me :tup:

now is time to look for rear calipers from STI MY'08+ :)

p.s. one more qustion - the calipers holes are exactly the same as in OEM Tribeca rear calipers? (i mean the distance from centre of one hole to centre of other hole)

and what about calipers bolts? you can reuse the OEM Tribeca bolts or do you need STI bolts (I'm asking because in the case of front STI calipers you need a special bolts from STI calipers)

[TomiT]

p.s. one more qustion - the calipers holes are exactly the same as in OEM Tribeca rear calipers? (i mean the distance from centre of one hole to centre of other hole)

and what about calipers bolts? you can reuse the OEM Tribeca bolts or do you need STI bolts (I'm asking because in the case of front STI calipers you need a special bolts from STI calipers)

The caliper bracket holes are exactly same :tup: You only gona need STi Brembo bolts, Beca bolts does not fit to Brembos...

[eddie_gt4]

TomiT, one more question (if you don't mind :lol: )

can you check if the OEM spare tire clears the rear BREMBOs?
it's important for me because I just must have a spare tire...

[TomiT]

Maybe this weekend... How about the front??

[eddie_gt4]

Maybe this weekend... How about the front??
ok, thanks in advance :)

I think there's no chance that OEM spare tire can clear front BREMBOs

at the moment I have front BREMBOs, but if it would be necessary I can rotate, for example, damaged front wheel to rear and use spare tire on the rear... but if rear BREMBOs do not clear spare tire that will be problem, because at that point teh OEM spare tire will be useless :(

[TomiT]

TomiT, one more question (if you don't mind :lol: )

can you check if the OEM spare tire clears the rear BREMBOs?
it's important for me because I just must have a spare tire...

Tested... Spare tire clear rear Brembos just fine!! :tup:

[tribeca09]

TomiT, what wheels do you have on the Tribeca now? Are they STIs? If so, what model year? They look great.

[TomiT]

TomiT, what wheels do you have on the Tribeca now? Are they STIs? If so, what model year? They look great.

Check this out

http://pts.in.ua/files/zubehoer/tribeca09.pdf

Wheel part no: 2719

Buy the way...They are for sale, with tires 800,-€ :rolleyes:

[eddie_gt4]

Tested... Spare tire clear rear Brembos just fine!! :tup:
once again: THANK YOU! :) :wave:

[Duke_kz]

Here is mine brake project results...

Brembos from MY10 STi Spec-C

Front

Rear

From rear, I had to lower/machine the rear caliber brackets abrox 8mm, the front was easy, just bolt on... ;)

Next new Enkei RPF1 wheels 19x9.5" ET42 :rolleyes:
Hi Tomi!
Tribeca rear rotor has 18mm thickness. Sti rear rotor - 20mm. There is no problem in this difference for rear caliper? It work properly with 18mm thick rotors?

[TomiT]

Hi Tomi!
Tribeca rear rotor has 18mm thickness. Sti rear rotor - 20mm. There is no problem in this difference for rear caliper? It work properly with 18mm thick rotors?

So far no problems...