For those who have the rear disc brake conversion

[mrbond]

After reading a recent thread about fabricating one's own bracket to accomodate a larger brake setup that wasn't meant for the Yaris. It got me to thinking about the rear disc brake conversion, and questions came out of that.
First - the rear disc included in the kit. Are the internals of that disc the same as the internals of a front disc?
Second - what brake pads would be compatible with it?

Thanks to whoever knows the answers!

[YarisSedan]

Rotor is probally made of simular material but its not going to be vented. Most rear rotors are not as they do not take the abuse that front rotors do. Weight of the motor is in the front and when you brake the car dips down thus the front brakes take probally about 80 percent of the braking force which is why u typically go through 2 -3 front brake jobs to every rear brake job depending on your driving style and area ie lots of hills compared to normal commute.

Second i think u can only get the brake pads that come with the kit as no aftermarket manufacture is going to mass produce something that is going to have extremly low sales.

[Penguin Garage]

it depends, alot of manufactures share similar size brake calipers/pads.

Using the same caliper for different applications allows economies of scale for both calipers and the required pads.

alot of the brake pad manufactures sell replacement pads for nearly all popular bbk and stock calipers.

:)

[cali yaris]

why not ask the vendor - me? :smile:

The rear calipers and pads are made in Thailand. I carry replacement pads, and CarboTech will make pads for these calipers if I (1) run out or (2) someone wants something special.

I'm not sure of the exact rotor material, but I'm not sure what you mean by the "internals of the disc". The construction is different, because it retains an e-brake shoe inside. So, when you install it, you have a place to attach the e-brake cable.

[mrbond]

Yeah, by internals I meant the construction.
See, after reading this one thread I got the idea to make a big brake kit out of your 320mm rotor, Evo calipers (with a remade relocation bracket), and using Evo rear calipers with the rear disc conversion in place of the calipers that come with it. However, after researching a bit, the rear Evo calipers require a larger rear disc, thus making my original question kinda useless :/

[Tamago]

Yeah, by internals I meant the construction.
See, after reading this one thread I got the idea to make a big brake kit out of your 320mm rotor, Evo calipers (with a remade relocation bracket), and using Evo rear calipers with the rear disc conversion in place of the calipers that come with it. However, after researching a bit, the rear Evo calipers require a larger rear disc, thus making my original question kinda useless :/

not to mention 5X114.3

[mrbond]

Well, no, I factored that in. I meant using front rotors for the Yaris on the rear. The bolt pattern would not change, otherwise I'd need new hubs, new wheels, etc which would be a huge pain in the ass to do. If you think about it, it's not that hard of a deal.

[Tamago]

why not a honda civic BBK to build off of? MR2 MKI? MR2 Spyder?

[mrbond]

I looked up civic BBKs, and the cheapest things I found were by Wilwood, and those were about a grand. I figure, with $430 for the big rotors from Garm, and another $300 for Brembo calipers off an Evo, I'd make a pretty competent Brembo brake kit for under a grand (after rebuilding the calipers and adding stainless steel lines). I'd much rather do this than keep small rotors and buy those crappy caliper covers. I like Brembo - the performance they offer and also the looks. Can't get a Brembo kit made specifically for the Yaris, see ;)

[Tamago]

so what is YOUR reason for big brakes then?

[mrbond]

To say that I have Brembos...without having to pay almost 3 grand for a full Brembo kit.

[Tamago]

lol

[mrbond]

^ hey, both you and I have heard of waaaaay worse reasons for bigger things lol

[cruz-gsr]

i really like that idea and t will give you looks and brake power, let me know how if you do it

[mrbond]

^ for sure. It'll be sometime around the beginning of next month, since it'll be a while till I get enough for the larger rotors. The calipers have been ordered already.

[vten]

mrbond, update me with the project please :P , my 320mm disc is on the way

[mrbond]

Well, my Brembo calipers and the rebuild kit are on their way. You live in Columbus, Ohio? Or Columbus somewhere else?

[kngrsll]

im building some brake duct coolers. if it goes well, maybe ill sell a kit. why add all the weight, cool the ones you got now and pass corvettes. thats way cooler than people seeing brembos under your wheels at a stop light.

[kngrsll]

why not ask the vendor - me? :smile:

The rear calipers and pads are made in Thailand. I carry replacement pads, and CarboTech will make pads for these calipers if I (1) run out or (2) someone wants something special.

I'm not sure of the exact rotor material, but I'm not sure what you mean by the "internals of the disc". The construction is different, because it retains an e-brake shoe inside. So, when you install it, you have a place to attach the e-brake cable.

thats really cool that it retains the E brake function. Now what about brake balance? does it do anything to change the front to rear balance? i would think it would have to shift it to the rear a little, which may not be bad.

[Brian]

I felt a slight increase in braking after I installed the rear discs.

[kngrsll]

I felt a slight increase in braking after I installed the rear discs.

i could imagine... the rear drums are pretty pathetic.

[cali yaris]

I did too. Without scientifically testing it, I would say the rear brakes are doing a bit more of the work.

[mikenacarato]

i cant wait to help randy install his! then wish i had them :(