Porsche Brembo Calipers and STi Rotors

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Re: Porsche Brembo Calipers and STi Rotors

Postby BNZ » Tue May 15, 2012 9:24 pm

What's the min wheel size to fit over the porsche/wrx setup ?!
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Re: Porsche Brembo Calipers and STi Rotors

Postby Spectra1 » Tue May 15, 2012 9:41 pm

I had some 16 inch wheels and they were to small. I think the consensus is you need 17inch rims or greater.
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Re: Porsche Brembo Calipers and STi Rotors

Postby BNZ » Wed May 16, 2012 6:22 am

That's acceptable.
Oh one more thing,with smaller/different offset brackets,what do you guys think do the calipers fit the ST185 rotors in order to use 15 inch wheels (for gravel spec setups) ?
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Re: Porsche Brembo Calipers and STi Rotors

Postby bozo-merlin » Wed May 16, 2012 11:31 am

BNZ wrote:what do you guys think do the calipers fit the ST185 rotors

Overheating a rotor is not a good idea
try to find a 290mm rotor, it fits under some 15", 30mm thick is better too
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Re: Porsche Brembo Calipers and STi Rotors

Postby gtfourtc » Fri May 25, 2012 7:24 am

there are a couple rotors that might work for a smaller package, also the standard boxster calipers are slightly smaller so would fit a smaller rotor better. AS for the bracket I think is doable I t would have to change a little so the caliper is not spaced out as far from the hub. going down to a 290mm rotor you would have to lose about .75" off the bracket. this only leaves about .5" of threads for the caliper bolts. prob enough but it would be a safer bet to switch to a stud that screws into the bracket and the use a nut to secure the caliper. pretty much the way stoptech does all their brackets.
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Re: Porsche Brembo Calipers and STi Rotors

Postby BNZ » Sat May 26, 2012 11:23 am

Is there any difference in terms of spacing/dimensions between the front and rear porsche calipers ? They look 90% identical but the rears are cheaper listed on e-bay from breakers
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Re: Porsche Brembo Calipers and STi Rotors

Postby gtfourtc » Sat May 26, 2012 6:35 pm

while they have the same 130mm bolt centers, they are different sizes also the front calipers have 36/40mm pistons and the rears have 28/30mm pistons. What this means is the rear calipers are much too small to use on the front. Ebay can be good if you find a deal but those dont come around all the time. If you check out car-part.com you can find the 911 calipers for 150-200 each and the standard boxster calipers i found a bunch for 100 each.
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Re: Porsche Brembo Calipers and STi Rotors

Postby 94 MR2 Turbo » Fri Jul 25, 2014 10:51 pm

I was wondering if anyone had noise issues with this set up. I know there hasn't been too much talk about people's experience but I would like some reviews.

I personally have tons of noise with my setup. I will have to play with things in the near future. Im going to find out what frequency is noise is and work from there. I hope someone can chime in.
Last edited by 94 MR2 Turbo on Sat Jul 26, 2014 12:23 am, edited 1 time in total.
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Re: Porsche Brembo Calipers and STi Rotors

Postby DeeCee » Fri Jul 25, 2014 11:41 pm

Did you use spacer rings to centre the rotor on the hub? Noise could be coming from rotor moving around on the hub
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Re: Porsche Brembo Calipers and STi Rotors

Postby 94 MR2 Turbo » Sat Jul 26, 2014 12:28 am

yes rings installed. chamfered the pads as well. No lube on pad piston area yet.
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Re: Porsche Brembo Calipers and STi Rotors

Postby underscore » Sat Jul 26, 2014 2:32 am

What kind of noise? I get noise when the rotor contacts the balljoint near full lock.
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Re: Porsche Brembo Calipers and STi Rotors

Postby phattyduck » Fri Aug 01, 2014 4:05 am

Also, the choice of brake pads can make a difference... Some pads are crazy noisy, others only make noise at certain brake pressures/speeds. My first set of pads was noisy, my current ones are silent so far.

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Re: Porsche Brembo Calipers and STi Rotors

Postby C-dubb » Thu Oct 16, 2014 1:55 pm

Just Porsche calipers huh? No specific model or year? I know they're pretty standard but want to make sure I don't get the only ones that won't work.
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Re: Porsche Brembo Calipers and STi Rotors

Postby underscore » Thu Oct 16, 2014 10:14 pm

You need the front calipers off a 99-2005 911 Carrera 2/4 996, 2000-2008 Boxster S or a 2006-2008 Cayman, Porsche part #996.351.425 & 996.351.426, I got mine off a 2002 Boxter S (3.2L)

They may say Porsche on them or they may say Brembo, regardless they should have the part # on them as part of the mold (raised numbers) and small raised letters saying Brembo. Doing some research into pads Porsche owners don't seem to think there's much difference between the regular Boxter (non-Brembo) and Boxter S (Brembo) calipers so you might be able to use those for cheaper.
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Re: Porsche Brembo Calipers and STi Rotors

Postby C-dubb » Fri Oct 17, 2014 2:21 am

^ Thanks a lot underscore!

I meant to ask also, are there adapter brackets available anywhere, the link for them was dead.
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