Alternative rear disc conversion?

[sh0rtlife]

its not about sticking out its about bolting them onto the correct mount to bring them down to the 275 rotor

[Neinris]

Originally Posted by sh0rtlife

its not about sticking out its about bolting them onto the correct mount to bring them down to the 275 rotor

I'm getting my threads mixed up...

Well, that's what I kind of mean or need to know. How far will the caliper move out when it's mounted on a Yaris' steering knuckle? Will it be the same as the BRZ where you can house a 326mm rotor or will it be in like the Yaris SE/Corolla/xD? Or is there a different caliper carrier that it can be Frankenstein with and dial it for a 275mm rotor if you want to do a 5X114.3 PCD. Could I just make an adaptor plate and move out the xD calipers that I have to house 275mm rotors? But then the pads won't follow the same contour as the rotor. Would that really matter?

I've thought about using a 2nd GEN xBs steering knuckle, but looking at the holes, I don't think it'll mount to the Yaris' strut. You could probably use the xBs strut, but use the Yaris' top hat?

For the rear rotors, since it's solid, I could just mill down the xBs 279mm rotors down to 259mm, and still use the stock Yaris SE calipers. I don't think I can do that to the front rotors since they're finned. Or use the 279mm rotors, but will definitely need to install a proportioning valve, since the rear rotors are bigger.

[Neinris]

I made the brackets out of aluminum angle, I couldn’t find anything else that’s 1/16in thick. Well at least I know they won’t corrode, and they’re strong enough that I can’t fold them by hand. I cheaped out and made my own retaining clips too…
Once I position them on the axle frame, I’ll drill holes on the base and rivet them down. Yeah I know not welded, but it should still work.
I also made two extra ones with smaller hole, incase the hoses I’m relocating are differently designed than this hose. The hose in the pic is one that will connect to the caliper.
I don’t know why the first pic is upside down…

[Compeer]

Originally Posted by Neinris

I made the brackets out of aluminum angle, I couldn’t find anything else that’s 1/16in thick. Well at least I know they won’t corrode, and they’re strong enough that I can’t fold them by hand. I cheaped out and made my own retaining clips too…
Once I position them on the axle frame, I’ll drill holes on the base and rivet them down. Yeah I know not welded, but it should still work.
I also made two extra ones with smaller hole, incase the hoses I’m relocating are differently designed than this hose. The hose in the pic is one that will connect to the caliper.
I don’t know why the first pic is upside down…

The clips atleast need to be the original hardened spring steel, Alu cannot work as a spring.

[sh0rtlife]

Originally Posted by Compeer

The clips atleast need to be the original hardened spring steel, Alu cannot work as a spring.

exactly true, the aluminum is just going to let it go under pressure, or bend back n forth till it breaks off...it may not be "quick" but eventual inevitability

if you want "new" look for street rod hose mounts, if you want quick n dirty either cut some off a TRUCK/SUV...or even a car..tho on a car its hard to get enough materiel left to mount them

you can even look at clutch hose mounts, it only needs to fit the hose not the car, alot of the street rod ones are either studded for mounting or threaded for mounting so its easier to slap em in and be done

also aluminum on aluminum can and WILL corrode in fairly short order

[Neinris]

Originally Posted by sh0rtlife

exactly true, the aluminum is just going to let it go under pressure, or bend back n forth till it breaks off...it may not be "quick" but eventual inevitability...

Are you talking about the clip or the mounting bracket? I agree, that the clips should be spring steel, after a few test of mounting the aluminum clips on and off, the didn't retain the bend. I just didn't want to pay the $8 per clip from Toyota. I'll see if the car parts store near me has anything similar.

If anything, the brackets will be temporary, I just want to slap the disc conversion ASAP.

[Compeer]

Originally Posted by Neinris

Are you talking about the clip or the mounting bracket? I agree, that the clips should be spring steel, after a few test of mounting the aluminum clips on and off, the didn't retain the bend. I just didn't want to pay the $8 per clip from Toyota. I'll see if the car parts store near me has anything similar.

If anything, the brackets will be temporary, I just want to slap the disc conversion ASAP.

You will have to repair the holes you drill tho, idk man this is your brakes, Do it once do it right.

The Alu bracket will brake as well not just the clip, the brake hoses move back and fourth when pressurized under braking, this is going to stress fracture then brake off the mount right where its bent. It would need a triangle welded in to stop this or for it to be a properly cast unit designed to not bend.

You can do the brake upgrade, just use the stock mount position for the trailing arm and stock brake brackets for now, Later on just move the brackets and change trailing arm position, changing the arms position only requires 10mins and a 17mm and extension and a jack.