STi Brembos

[King Tut]

Originally Posted by Fizz

By the way, where can i get new caliper mounting bolts? Is it ok to just use similar size/length/pitch purchased from hardware store?

I would only go with OEM STI caliper bolts personally, but a quality Grade 8 bolt would be an okay replacement. Perhaps a search on NASIOC or some Subaru parts sites will net you the length, thread size, and thread pitch.

[King Tut]

Originally Posted by Figo

My STI caliper with red powder coat

Damn those look amazing. I would have loved that look much more than my black STI decaled calipers.

[King Tut]

Originally Posted by Fizz

Thanks. Could you take a couple of shots showing the back of the caliper where the banjo connects. Which bleeders and stainless lines did you get?

By the way.....just wanted to make sure that 05 calipers are the same as 04 yes? Just the rotors are different....?

I used the BRZ stainless lines and you will find that the banjo on the back of the caliper won't line up with the tabs meant to hold it in place. I just found a good position for it to fit and tightened down the banjo bolt with no issues in over 20,000 miles. I used the OEM bleeders that came in my STI calipers. The 05 calipers are the exact same as the 04 calipers. The only difference in the rotors is the 04s are 5x100 and the 05s are 5x114.

[OrbitalEllipses]

Looking great @Figo, glad to see the setup done!

Originally Posted by King Tut

I would only go with OEM STI caliper bolts personally, but a quality Grade 8 bolt would be an okay replacement. Perhaps a search on NASIOC or some Subaru parts sites will net you the length, thread size, and thread pitch.

Always used Grade 8 or 10 belts from the hardware store/McMaster-Carr.

[Fizz]

Thanks. I've actually found the part number for brand new OEM mounting bolts, and they're only a few bucks each so I'll get those instead of looking in hardware stores. I've also read its prudent to smear some copper anti seize on the mounting bolts....apparently they're prone to seizing.
@King Tut I have to say I was "inspired" to take up this mod after seeing pics of your brake swap months ago

[King Tut]

Originally Posted by Fizz

Thanks. I've actually found the part number for brand new OEM mounting bolts, and they're only a few bucks each so I'll get those instead of looking in hardware stores. I've also read its prudent to smear some copper anti seize on the mounting bolts....apparently they're prone to seizing.
@King Tut I have to say I was "inspired" to take up this mod after seeing pics of your brake swap months ago

I would definitely use some anti-seize on the bolts since it is a steel bolt going into some really soft aluminum. Also don't over torque them.

[Figo]

Originally Posted by OrbitalEllipses

Looking great @Figo, glad to see the setup done!


Always used Grade 8 or 10 belts from the hardware store/McMaster-Carr.

I appreciate for your advice.

[AyJay]

Originally Posted by jamal

Exactly. Two opposed pistons move the same distance and require the same fluid displacement as one piston in a sliding caliper.

The front brembos only have very slightly more piston area than the stock brakes and with the larger rotor you are getting about 10% more brake torque given the same pressure. Here's the interesting part: Going to the rear brembos actually moves the bias even farther forward because the pistons in that caliper are smaller than stock and the rotor isn't that much bigger.

So your bias is actually better with only the front brembos compared to putting them on all four corners.

This bolded text claim was made earlier in the thread, and seemed to be co-signed by RaceComp Engineering.

If one were to run STI Brembo fronts and OEM rear would it be ideal to run the same compound pad on front and rear still?

For instance, if one were to run a CarboTech XP10 in front would it then be ideal to run an XP8 pad in the rear? Or would you want to run the same pad all on all 4 corners?

[bee_are_zee]

Ok so I need some clarification on brembos. Do 08+ fronts fit on the factory rotors or do they need new rotors as well?

[azian_advanced]

you'll need new rotors.
most people have been getting DBA 4000 T3 series rotors (dual-drilled version) with their swaps.

[Draco-REX]

Originally Posted by bee_are_zee

Ok so I need some clarification on brembos. Do 08+ fronts fit on the factory rotors or do they need new rotors as well?

You need front rotors from a 2004 STI (and only 2004, 2005+ have the wrong bolt pattern).

This is the simplest recipe for a Brembo Twin:
08+ STI Brembo calipers
2004 STI front rotors
2008+ STI rear rotors drilled for 5x100


Caliper sets can be found on IWSTI and NASIOC if you're fast.
Adam's Rotors can put together a custom set for a good price, and DBA makes dual-drilled rotors.

[chanomatik]

http://www.fastwrx.com/rebradkit2im.html

http://www.fastwrx.com/brakerotors.html

[Fizz]

Originally Posted by bee_are_zee

Ok so I need some clarification on brembos. Do 08+ fronts fit on the factory rotors or do they need new rotors as well?

You'll definitely need new rotors. Best to get new lines as well at the same time.

[bee_are_zee]

I dunno why I thought in 08 the rotors dropped back down to the wrx size. Anyway I just got stoptech rotors like a month ago so it looks like I will be going with 4 pots...