Solid vs vented rear rotors - interchangeable?

[WRITEX]

Hey.
I have a question about the rear rotors on these cars.
(This will go as a last resort before I eventually buy a different kit.)

-

I recently purchased a EBC brake kit for my '12 GT86, but unfortunately, I did so without checking what size rotors my car has.

The website I ordered from basically had 2 options for the kit I ordered, it was either "Toyota GT86 2.0" or "Toyota GT86 2.0 (UK Spec)".....
There wasn't really any info on the rotors and pads in the kit other than EBC product numbers, and I was in a hurry so I went with the one that didn't state "UK Spec".
Well, in my case, this was wrong.

Differences - That wasn't stated on the website I ordered from. I've had to subsequently google around.
Front "regular": 277mm vented rotors (22mm thick)
Front "UK Spec": 294mm vented rotors (22mm thick)

So the front brakes isn't much of a big deal. The only difference is a slightly smaller rotor, and the pads are the same. The real problem is the rear brakes.

Rear "regular": 286mm solid rotors (10mm thick)
Rear "UK Spec": 290mm vented rotors (18mm thick)

Pads are also somewhat different, but I don't remember the exact specs right now.

The issue I am running into is basically due to the solid rotors being too thin. I haven't actually tried to brake with the solid rotors installed on the car, but it looks very much like when the piston starts pressing, the pads will jump out of their slots because the rotor is too thin.

So my question is...

Do these cars with vented and solid rear rotors have different rear calipers? Or, what is the difference? I feel like there has to be a difference. I've been looking around for weeks and I can't find any information whether or not they are supposed to be interchangeable, or in case they are not, how do I make solid rotors fit when you're supposed to have vented ones whereas the thickness is almost twice the size?


I'm fully aware that this is basically a brake downgrade. The only reason I'm so desperate to make it work out, is because I'm from Norway, where the community for the FRS/BRZ/GT86 platform is basically non-existent. I swear, there are probably less than 200 of these cars in the entire country. We have a Facebook page with around ~80 members, and probably half of us actually owns one.
Both the OEM and aftermarket availability here is extremely bad. I have to order everything online, mostly from the UK, the US, Australia or Japan... and it will take 3-4 weeks before stuff arrives, and don't mention shipping and customs costs.
Also, the website I purchased the kit from denies all responsibility even though they clearly lack information, and they won't allow me to return it. So I'm forced to either make it work or buy a new set.


Any help on this matter will be much appreciated.

[jamal]

Yes, you would need new rear calipers and brackets, because, as you've noticed, the caliper is too wide for the non vented rotor and the pads are different.

Here is the thing though, you do not need "brz/frs/gt-86" specific parts. The brakes you have are used on some other subaru models, and parts for those should be a little more readily available.

So try this:

Front rotors from any 2002-2014 WRX

Rear rotors from a 2010 Legacy GT, Legacy 3.6r, or outback 3.6.

[WRITEX]

Originally Posted by jamal

Yes, you would need new rear calipers and brackets, because, as you've noticed, the caliper is too wide for the non vented rotor and the pads are different.

Here is the thing though, you do not need "brz/frs/gt-86" specific parts. The brakes you have are used on some other subaru models, and parts for those should be a little more readily available.

So try this:

Front rotors from any 2002-2014 WRX

Rear rotors from a 2010 Legacy GT, Legacy 3.6r, or outback 3.6.

Well that sucks.
I did manage to find vented rear rotors that supposedly fits Legacy 3.6 at a local parts store, but those were the "2-in-1" bolt pattern kind of rotor (2 sets of bolt patterns). Nothing wrong with that, I just want everything to look proper... So I guess I'll just have to order online again. :/
Thanks for the information.

[jamal]

2015+ wrx and legacy went to 5x114 but still use the 290x18 rotor, so dual drilling lets it fit on both.

[Mehrshad]

Hi
i have EBC rotors on my car and it has a strange noise when driving about 50-60 Kph,and when i brake the sound stops,does anyone know whats the problem?
this is the sound

and this is the rotor
http://www.ft86club.com/forums/attac...1&d=1352695118
__________________

[SuperTom]

Originally Posted by WRITEX

Hey.
I have a question about the rear rotors on these cars.
(This will go as a last resort before I eventually buy a different kit.)

-

I recently purchased a EBC brake kit for my '12 GT86, but unfortunately, I did so without checking what size rotors my car has.

The website I ordered from basically had 2 options for the kit I ordered, it was either "Toyota GT86 2.0" or "Toyota GT86 2.0 (UK Spec)".....
There wasn't really any info on the rotors and pads in the kit other than EBC product numbers, and I was in a hurry so I went with the one that didn't state "UK Spec".
Well, in my case, this was wrong.

Differences - That wasn't stated on the website I ordered from. I've had to subsequently google around.
Front "regular": 277mm vented rotors (22mm thick)
Front "UK Spec": 294mm vented rotors (22mm thick)

So the front brakes isn't much of a big deal. The only difference is a slightly smaller rotor, and the pads are the same. The real problem is the rear brakes.

Rear "regular": 286mm solid rotors (10mm thick)
Rear "UK Spec": 290mm vented rotors (18mm thick)

Pads are also somewhat different, but I don't remember the exact specs right now.

The issue I am running into is basically due to the solid rotors being too thin. I haven't actually tried to brake with the solid rotors installed on the car, but it looks very much like when the piston starts pressing, the pads will jump out of their slots because the rotor is too thin.

So my question is...

Do these cars with vented and solid rear rotors have different rear calipers? Or, what is the difference? I feel like there has to be a difference. I've been looking around for weeks and I can't find any information whether or not they are supposed to be interchangeable, or in case they are not, how do I make solid rotors fit when you're supposed to have vented ones whereas the thickness is almost twice the size?


I'm fully aware that this is basically a brake downgrade. The only reason I'm so desperate to make it work out, is because I'm from Norway, where the community for the FRS/BRZ/GT86 platform is basically non-existent. I swear, there are probably less than 200 of these cars in the entire country. We have a Facebook page with around ~80 members, and probably half of us actually owns one.
Both the OEM and aftermarket availability here is extremely bad. I have to order everything online, mostly from the UK, the US, Australia or Japan... and it will take 3-4 weeks before stuff arrives, and don't mention shipping and customs costs.
Also, the website I purchased the kit from denies all responsibility even though they clearly lack information, and they won't allow me to return it. So I'm forced to either make it work or buy a new set.


Any help on this matter will be much appreciated.

I hope you are still active on the forums this is exactly what im looking for. Im working on a lightweight build and wouldn't mind loosing some weight in the rear brakes (since the do barely little).


Just wondering where you ordered your stock thin rotors from?? Id imagine I could get the smaller calipers that go with them from the same site or just add shims behind the stock pads to push them out.


Thanks I hope you can help with this

[SuperTom]

I think I just answered my own question I found these on ebay using your specs thanks so much


https://www.ebay.com/itm/Rear-286-mm...d=282437686860

[nikitopo]

Originally Posted by SuperTom

I think I just answered my own question I found these on ebay using your specs thanks so much


https://www.ebay.com/itm/Rear-286-mm...d=282437686860

I have the rear solid ones, but this is how it came from factory in specific trim levels and regions (EU, JP, AUS). As a side note, I don't think you can change just the rotors ...

[SuperTom]

Originally Posted by nikitopo

I have the rear solid ones, but this is how it came from factory in specific trim levels and regions (EU, JP, AUS). As a side note, I don't think you can change just the rotors ...

Yeah the pads are too thin. Some of these kits come with pads so im hoping they are just thicker


Otherwise I need calipers from your region. Do you happen to have part #'s of the calipers in your area? I can cross reference them to see if they are the same as ours