Though i would start a new thread to see what interest there is in brackets to fit porsche calipers on the tc. This would be the same basic setup that i had on my tc the only real difference would be a slightly larger rotor probably 325mm diameter.

 

I'd be very interested. As well as rear brackets to re-locate the front calipers/rotors to the rear.

 

relocating the front brake to the rear would not work even if a bracket could be made. The piston size in the front calipers is the issue, it is way too large and would cause a dangerous rear bias in the braking system. I do agree that it would be nice to have something larger to match a front brake kit. I was looking into this before my tc was totaled but i would have required a much larger front system and a larger master cylinder in order to use "oem" porsche components.

I had though of looking into using the rear calipers from the lexus is300, they are 2 piston fixed calipers stock, they might even bolt on, you would still need a custom rotor though in order to maintain the parking brake.

 

With your bracket would I be able to retain a close to factoy brake bias? I can get some porsche calipers decently cheap and if the only thing standin in my way is a mounting bracket and rotors that's a done deal.

 

im interested like i said in ur other thread...

 

with this bracket you would maintain a similar to stock bias. As with other big brake kits you do increase the torque you front brakes are generating. And yeah all you would have to do is buy rotors, calipers/pads, braided lines and a few bolts

 

which rotors would be required with this kit (oem 5x100 units off another toyota)? would these brackets fit all Porsche calipers or only late models? since porsche calipers are made by Brembo, would other Brembo calipers (aftermarket Brembo or OEM Brembos) fit as well?

 

unfortunately there are no off the shelf toyota rotors large enough with the 5x100 bolt pattern, so there are a couple other options i am looking at. One option is the subaru wrx sti rotors they are 326x30 with a 5x100 bolt pattern. The other rotor is from the bmw e46 m3 it is 325x38 you would have to redrill those for the 5x100 bolt pattern. Both rotors would need hub spacers to properly center the rotor on the hub. I would provide this as well.

As far as other porsche/ brembo caliper fitment these bracket allow any caliper with 130mm radial mounting to fit the tc. This means stoptech as well. The only thing would be the depth the rotor needs to sit, each caliper will be slightly different.

 

I am making some changes to the bracket, I have decieded that the wrx sti rotor will be the best option, you can get them 5x100 bolt pattern and all you need is a small hub ring to center the rotor on the hub, I made a few of them today at the machine shop, it wasnt bad but I need to use round tube instead of round bar, machining 1,5mm thick rings out of 3" round bar is time consuming.

 

Still interested in this once you are done making tweaks.

 

here is a quick update, I have 4 sets of bracket near completion, like i said before they are made to fit the sti 5x100 rotors which are 326x30mm. I somehow lost my drawing of the caliper dimensions so i should be getting a caliper in the next week or so. As for the brackets thy will come with all necessary hardware, bolts/hub rings.



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rotor centering rings



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I'd love to see an installed caliper pik...

 

here is an old pic of the caliper installed on my tc with the celica rotors



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I will get more detailed pics of the new setup in the next few weeks

 

how does this setup compare in both price and performance to other scion tc specific BBK's on the market? (not trynna be a dbag)

 

price wise less, and you wont have to buy it all at once, Calipers will run you 200-600 for both just depends on what kinda deal you can find. rotors you can spend anywhere from 200-800, with the top price being for full floating rotors with aluminum hats. pads are gonna go from 50-250 depending on what your needs are. and braided lines 85 bucks. Im thinking around 200 for the brakets/hardware. So min would be around 850 total. compare this to the price of the trd (which you cant even find on there websites anymore) but they are 1100 ish and require a minimum 18" wheel, the brembo kit is 2500 and wilwood is 1000. there is also the stoptech celica kit which runs around 1500.

As for performance, none of the big brake kits will stop your car quicker, thats up to the tires. Now stickier tire combined with better brakes should help stop you quicker. One downside to going with larger brakes is the added weight. stock tc rotors weight about 14 lbs most of the 2 piece aluminum rotors are around 19 lbs so still heavier. Is this an issue on the street not at all. the benefit of going to heavier rotors is the added ability to absorb heat, which will come into play if you track your car.

The trd brake kit make about 45% more torque at the front wheels like wise the wilwood and brembo kits will be about the same. The setup i worked out gives you about the same increase in front brake torque. What this means is that you will be able to lock up your front brake easier or with less pedal effort, this will be true for any of the brake kits. as far as pedal feel my pedal felt stiffer and had better feel. i cant compare this to the other kits as i have never driver any tc's with them.

I hope this help answer your questions about performance, keep in mind i am not saying this setup with the Porsche calipers is better than the other kits. I believe it is equivalent performance wise. Mostly i decided to do this for those few that have interest in doing something a little different and dont want to drop a minimum of 1000 dollars to have a big brake kit.

 

Very nice!

 

so just a little addition to the brake performance tech i posted. the wilwood big brake kits have 41mm pistons. this gives you 85% more front brake torque, it also has the added effect of increasing pedal travel and making the pedal softer.
This is actually a pretty bad thing, as with this much extra braking force being generated by the front wheels the abs system is working overtime to try to compensate. I guess i should qualify that statement, about it being pretty bad this would be in panic brake situations when you really need to stop as fast as possible, you might actually stop slower than with the stock tc brakes. About the only thing going for the willwood kit is that the 2 piece rotors weight about 15 lbs which is great for a near 13" rotor.

I never was a big fan of the entry level wilwood brake kits for street cars, for one this pistons dont have dust boots and are stainless which will lead to corrosion for anyone living with winter weather.

Now dont think i am bagging on wilwood too much After all i am using some wilwood calipers for the brake system on KU FSAE car. I just think they are a company better suited for the product made for actual racing.

 

what comps do you go to for FSAE? i'm part of oakland universities FSAE team. we are doing the comp in michigan as well as in california.

 

For fsae we do the same as you guys, michigan and california, we are also doing the hybrid series this year I think that one is in virginia or something.

Update on the brackets coming in a few minutes..