Brembo swap, uneven pad contact - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

bass_114 · 05-20-2016, 01:00 AM

hey guys wondering if anyone can shine some light on this. Completed the full brembo sti swap and now have uneven pad contact on the disks. wondering why this is happening. I am referring to the rust forming on the outer edge of the rotor.
note the callipers were fully rebuilt.

Driver front:

Passenger front:

frslee · 05-20-2016, 10:45 AM

The pad is not fully covering the disc surface. No big deal.

bass_114 · 05-20-2016, 12:52 PM

can it be adjusted in any way? cause all the parts are the right ones for fitment and weird that its not the same on passenger side vs driver

churchx · 05-20-2016, 02:50 PM

I wonder why do you care about it as much, if you did it mostly for looks, not performance/braking reliability?

bass_114 · 05-20-2016, 03:01 PM

lol you got me there, but for looks the rust that will eventually build up won't be appealing :0

Toyarzee · 05-20-2016, 03:29 PM

Stock brake pads did not cover 100% of rotor surface either.

Either use them brembos and heat up those rotors, or clean them occasionally with brake cleaner and wire brush....

Or get over it lol

atlbrz · 05-20-2016, 07:14 PM

Do the calipers have any kind of height adjustment? I had some Wilwoods and you had to set the height of the caliper using washers to set the height. You also had to be sure they were centered or you would get uneven pad wear.

Mr.ac · 05-20-2016, 07:42 PM

Just soak your brake rotors in wd40 so they won't rust.

I'M JOKING DO NOT DO THAT.

But really it shouldn't matter as long as your brakes work. That's all that matters.

bass_114 · 05-20-2016, 08:05 PM

Thanks guys, im just saying since its not the same pad contact on the passenger vs driver side it seemed like we did soemthing wrong during the install

zkv476 · 05-20-2016, 08:38 PM

Did you use new pads and rotors? Also what pad is it?

greg.bowring · 05-20-2016, 08:56 PM

I'm experiencing similar. I reckon it's just new pads/rotors

Sent from my iPhone using Tapatalk

bass_114 · 05-20-2016, 09:57 PM

Glad i'm not the only one, yup all new centric premium pads and disks

Tcoat · 05-20-2016, 09:59 PM

Brake pads can be rusty before they even leave the factory if they are not speced to have inhibitor. The ones with inhibitor last a little longer. Those areas that don't rust (the noncontact areas) are usualy treated with a zinc coating. I see about 2 million rotors a year.

Mr.ac · 05-21-2016, 05:03 AM

Quote:

Originally Posted by bass_114

Thanks guys, im just saying since its not the same pad contact on the passenger vs driver side it seemed like we did soemthing wrong during the install

Not really, but it could be the brake shims that are moved more than the other side, thats my best guess. Or the mounting bolts are just a tad bit loose on one side making the whole caliper slide down just a hair.

05-20-2016, 01:00 AM	#1
bass_114 Senior Member Join Date: Oct 2014 Drives: wrb brz Location: canada Posts: 100 Thanks: 18 Thanked 12 Times in 11 Posts Mentioned: 1 Post(s)	Brembo swap, uneven pad contact hey guys wondering if anyone can shine some light on this. Completed the full brembo sti swap and now have uneven pad contact on the disks. wondering why this is happening. I am referring to the rust forming on the outer edge of the rotor. note the callipers were fully rebuilt. Driver front: Passenger front: Last edited by bass_114; 05-20-2016 at 10:04 PM.

05-20-2016, 07:42 PM	#8
Mr.ac [insert cool phrase here] Join Date: Aug 2015 Drives: BRZ Premium Location: Central Coast CA Posts: 2,368 Thanks: 709 Thanked 1,559 Times in 930 Posts Mentioned: 30 Post(s)	Just soak your brake rotors in wd40 so they won't rust. I'M JOKING DO NOT DO THAT. But really it shouldn't matter as long as your brakes work. That's all that matters. __________________ New daily driver - Subaru BRZ Premium Weekend fun/track car - '91 MR2 Turbo Gen3 Old daily driver - '88 MR2 Supercharged

05-20-2016, 09:59 PM	#13
Tcoat Senior Member Join Date: Jul 2014 Drives: 2020 Hakone Location: London, Ont Posts: 69,838 Thanks: 61,656 Thanked 108,295 Times in 46,456 Posts Mentioned: 2499 Post(s)	Brake pads can be rusty before they even leave the factory if they are not speced to have inhibitor. The ones with inhibitor last a little longer. Those areas that don't rust (the noncontact areas) are usualy treated with a zinc coating. I see about 2 million rotors a year. __________________ Racecar spelled backwards is Racecar, because Racecar.

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05-20-2016, 10:45 AM	#2
frslee Just drive it Join Date: Mar 2013 Drives: 13' FR-S Location: Maryland Posts: 1,122 Thanks: 97 Thanked 321 Times in 218 Posts Mentioned: 10 Post(s)	The pad is not fully covering the disc surface. No big deal.

05-20-2016, 12:52 PM	#3
bass_114 Senior Member Join Date: Oct 2014 Drives: wrb brz Location: canada Posts: 100 Thanks: 18 Thanked 12 Times in 11 Posts Mentioned: 1 Post(s)	can it be adjusted in any way? cause all the parts are the right ones for fitment and weird that its not the same on passenger side vs driver

05-20-2016, 02:50 PM	#4
churchx Senior Member Join Date: Mar 2015 Drives: 2014 GT86 Location: Latvia, Riga Posts: 4,336 Thanks: 698 Thanked 2,091 Times in 1,437 Posts Mentioned: 53 Post(s)	I wonder why do you care about it as much, if you did it mostly for looks, not performance/braking reliability?

05-20-2016, 03:01 PM	#5
bass_114 Senior Member Join Date: Oct 2014 Drives: wrb brz Location: canada Posts: 100 Thanks: 18 Thanked 12 Times in 11 Posts Mentioned: 1 Post(s)	lol you got me there, but for looks the rust that will eventually build up won't be appealing :0

05-20-2016, 03:29 PM	#6
Toyarzee Shibby! Join Date: Feb 2014 Drives: '14 White FR-S, '01 turbo mini taco Location: Costa Mesa, CA Posts: 647 Thanks: 838 Thanked 583 Times in 269 Posts Mentioned: 4 Post(s)	Stock brake pads did not cover 100% of rotor surface either. Either use them brembos and heat up those rotors, or clean them occasionally with brake cleaner and wire brush.... Or get over it lol

05-20-2016, 07:14 PM	#7
atlbrz Member Join Date: Feb 2016 Drives: Hyper Blue BRZ Location: Atlanta Posts: 53 Thanks: 0 Thanked 26 Times in 21 Posts Mentioned: 1 Post(s)	Do the calipers have any kind of height adjustment? I had some Wilwoods and you had to set the height of the caliper using washers to set the height. You also had to be sure they were centered or you would get uneven pad wear.

05-20-2016, 08:05 PM	#9
bass_114 Senior Member Join Date: Oct 2014 Drives: wrb brz Location: canada Posts: 100 Thanks: 18 Thanked 12 Times in 11 Posts Mentioned: 1 Post(s)	Thanks guys, im just saying since its not the same pad contact on the passenger vs driver side it seemed like we did soemthing wrong during the install

05-20-2016, 08:38 PM	#10
zkv476 Senior Member Join Date: May 2014 Drives: 2014 SWP BRZ, MT Location: New Jersey Posts: 240 Thanks: 11 Thanked 140 Times in 90 Posts Mentioned: 5 Post(s)	Did you use new pads and rotors? Also what pad is it?

05-20-2016, 08:56 PM	#11
greg.bowring Member Join Date: Jul 2014 Drives: Posts: 10 Thanks: 0 Thanked 9 Times in 4 Posts Mentioned: 0 Post(s)	I'm experiencing similar. I reckon it's just new pads/rotors Sent from my iPhone using Tapatalk

05-20-2016, 09:57 PM	#12
bass_114 Senior Member Join Date: Oct 2014 Drives: wrb brz Location: canada Posts: 100 Thanks: 18 Thanked 12 Times in 11 Posts Mentioned: 1 Post(s)	Glad i'm not the only one, yup all new centric premium pads and disks

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