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Scion xA/xB 1st-Gen Suspension & Handling Coilovers, Shocks, Airbags, Swaybars...

Yes, another Rear Disc Brake post!

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Old 10-19-2007, 08:32 AM
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Nice job man!
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Old 10-19-2007, 09:08 AM
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Originally Posted by JSosa
WOW!!! Thats loooks really well made it would be FREAKING awesome if ou plan on selling this kit. But i have a few questions:

1.) What car did the calipers come from??
2.) Where car did the rotors come from??
3.) What brake lines are you using??
4.) Do you still have the E-brake line??
5.) Have you ever thought of the change in brake bias and how to compensate??

This looks VERY VERY VERY well made, please answer my question im DYING to know!!
Ok, I'm not going to get real specific on the caliper, because I want this kit to work before letting anyone know what I'm doing.

1) Caliper is off a Ford (sorry thats about all I want to say right now)
2) Modified xB Front (these rotors have to be re-worked, they won't fit the rear hubs.
You have to modify the hub or the rotor. I thought if I wanted a bolt on kit then the rotor was the easiest and cheapest.)
3) Goodridge Stainless Flexlines, (custom made so they will hook to the hard line in the fenderwell right to the caliper with the banjo bolt)
4) Yes I plan on keeping the stock E-Brake cable ( I have a stock one ordered so I can see if I can make it work, before trying to install it on mine) (either un-modified or with some sort of adapter cable)
5) Yes, I've thought about it and talked to a couple Brake manufacturers about it. Wilwood being one of them. Like I said before the best thing I can do is get this done and installed, then tested. Then I can give more details as to what the outcome is.

As of right now the only thing holding this project up is waiting on new rotors to come in to re-work, stock E-brake line, and flex hoses. When all of that arrives, I'll get the E-brake line figured out, pre assemble everything on the workbench rear end, and then start the install on the xB. I guess then you could say I'm gonna test and tune the bias, if needed. As before any suggestions or comments, please do.
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Old 10-19-2007, 03:19 PM
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Well you asked for suggestions. Instead of useing a heavy vented front brake rotor, use a rear rotor from a Miata. They come in three different diameters depending on year. They also have the correct hub diameter. You could also use a Miata caliper just to keep everything matched.
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Old 10-19-2007, 04:34 PM
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Instead of using an OEM rotor, why not a slotted or drilled?? Of course your still in R&D stage, so this might be considered as an upgrade of an upgrade... It looks like you know what your doing and obviously have more experience with these things than i do, but you MUST keep us posted. Why didn't you use Toyota calipers?? I really hope the car brakes perfectly balanced because on the track that would REALLY help. If this gets finished and works and you decide to sell, im willing to put my turbo on hold fir this... BTW, ive been wanting to have a turbo car for about 6yrs now and i have everything i need, it just needs install. Just use your imagination on how much i would love to see this rear disc brake conversion work.
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Old 10-20-2007, 06:19 PM
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Well you asked for suggestions. Instead of useing a heavy vented front brake rotor, use a rear rotor from a Miata. They come in three different diameters depending on year. They also have the correct hub diameter. You could also use a Miata caliper just to keep everything matched.
Yes, I want suggestions and thank you for yours. I looked at the rotors and they are about the same (cost wise) as the drilled and slotted ones the kit will come with. And as far as the Miata calipers, well those remanufacturered calipers are like $161.83 each. Thats as much as a Wilwood combination caliper. Almost everyones comments are "they'd like to see a kit that isn't so much money". Well thats what I'd like to accomplish, a simple drum to disc conversion. And then when this is done, I'll make another for the guys that want a kit to match their Big Brake Wilwood set-up, with Wilwood components. Which that kit will be higher do to the component costs!

Instead of using an OEM rotor, why not a slotted or drilled??
Plans are to have the drilled and slotted rotors in the kit. But waiting on the rotors to come in to make sure they are made to exact specs of the OEM rotor.
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Old 10-20-2007, 10:26 PM
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sounds good to me, keep the updates rolling
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Old 10-21-2007, 12:34 AM
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very interested to see this through would love that 4 disc option without spending so much
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Old 10-22-2007, 03:22 AM
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I tried a stock xB steelie tonight and there are no clearance issues with this set-up. So it looks like you could run 15"-? wheels.
Here's a couple pictures just to show it mounted up. It has about 3/8" to 1/2" between the caliper and the wheel.
So if you use your stockers in the winter, it won't be a problem!




Last edited by MR_LUV; 03-25-2021 at 02:29 PM. Reason: Awarded 10 Yr Badge
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Old 10-22-2007, 07:27 AM
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very nice!!
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Old 10-22-2007, 07:35 AM
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thats awesome...more good news...
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Old 10-22-2007, 06:34 PM
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keep the news coming in!!! This kit looks better and better everyday
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Old 10-22-2007, 09:06 PM
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AllianceAutoSports, Can you test fit an 18" rim.

I hope it fits with an 18" rim. So far, your doing an awesome job, can't wait to see the finish product.
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Old 10-23-2007, 03:56 PM
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Well, I've ran into a snag! After mounting this up so many times, standing back looking at it, and taking pictures of the progress. I was yet to notice that the bleeder valve was below the brake line! That won't work! I liked the position of this set-up, but I'm gonna have to make some new brackets to rotate it up some more. If I leave it where it is and flip the caliper over, you would have to drill two holes in the hub flange on the swingarm, for the E-brake cable to go through. As I think most people could do that. They shouldn't have to. So they are re-drawn, now I just have to start making them. On a good note, the brakelines are here, and the E-brake cable, so..... Just wanted to keep you updated!
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Old 10-23-2007, 05:06 PM
  #34  
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Man, your really awesome! thanks for keeping us so informed.
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Old 10-23-2007, 08:49 PM
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Originally Posted by AllianceAutoSports
As I think most people could do that. They shouldn't have to. !
Oh I'm sold...when are these for sale for the 06 xA haha
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Old 10-23-2007, 11:22 PM
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Your doing a great job with this! Can't wait to see the finished product....Great pics too!
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Old 10-23-2007, 11:53 PM
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Hats off to you my man. That is awesome all the work you have put into this. Thanks for posting and sharing.
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Old 10-24-2007, 03:01 PM
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As of today im saving money for this.... You DEFINITELY have one kit sold already!!
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Old 10-24-2007, 09:32 PM
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I plan on putting some Wilwood big brakes up front in the near future.

You have another kit sold. I want the kit that come with the Wilwood components.
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Old 10-24-2007, 09:39 PM
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I'm keeping an eye on this one. I like the looks of it so far!
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