ST205 Brakes on a ST, how ? who ? how much ? Options

[Culpable04]

A few months back I started the research, measuring, freezing fingering task to fit ST205 brakes on a USDM Celica.

the first step was to pair a ST205 caliper on USDM system to see what were the differences, well, the bolt holes are EXACTLY at the same distance, but unlike our stock calipers, the ST205 calipers have no thread on them, reason being that these ( st205 ) calipers are mount on the back of the knuckle, not on front like the stock ones, so this presents the first thing we need to work on, the other issue was rotors, no need to remind you how small the USDM rotors are, so they are useless here, we had a set of ST205 rotors, but there are 3 main problems with them, first, in order to fit them on our suspension, the caliper has to be modified, this modification involves grinding a few mm ( ~ 10 ) out of the bracket so the rotor falls dead center with the caliper, the second issue is that with the location of our holes on the knuckle the caliper can not accept anything bigger than 300 mm, and the 3rd problem is that ST205 rotors are not available in the states, the cost for them overseas + shipping charges = way out of my and most people price range ( ~ US$600.00 )


so ok, the first thing I did was ordered a set of IS300 as there was a rumor that they'd fit, hmmmm no, they don't, but at least with them I took some measurements that helped me get on the right path, I got on the phone with a partner in business, and using the measurements and the specs of USDM and ST205 celica, we came up with a rotor that seem to fit " in theory " lol.

I got such rotors a week later, and we tried them on, the fitment was PERFECT, for the caliper we, took the knuckle off and thread tap them, so no we have how to bolt the calipers, and have rotors that fit, went to tried them on the car, and guess what ? everything works perfectly, just one last thing, the wheels didn't fit, so right now we're waiting for my spacers to get here, so fit them on.

to resume..
here are the step to fit ST205 brakes on a USDM celica

1. take the knuckle off the car and thread tap them thread taps are available anywhere, buy matching bolts for the thread you are tapping ( grade 8 bolts please ) use a 1/2 x 20 tap or finer thread. ( the one used on the pictures is 9/16 x 20 but no need to go that big as that will require to drill the hole to make it a little bigger.

2. order these Custom rotors from me ( before you ask, if for some reason I can't supply them to you anymore, all the specs are sources will be posted, I'm not gonna screw anyone )

3. install, you'll most likely need new brake lines as the stock ones are not long enough, so take the opportunity and buy some Stainless Steel lines.

for brake pads, go to your local dealer, ST205 brake pads are exactly the same as Supra Twin turbo brakes,

4. if you need spacers for your wheels, I can supply those as well, I'm working numbers to offer a discounted price if you order rotors and spacers at the same time.


now enjoy the pictures, and let me know if there is any question.

























*the pictures show the rotor a little rusty, because they've been outside for a while, also things are just mocked on, not tighten as the calipers are still being painted. what you're looking at is a work in progress.

These are the spacers I'll be offering to everyone, hubcentric, made out of forged Aluminum, CNC machined, with longer studs. they'll be offer on thickness of 10 mm, 15mm, and 20 mm.


This post has been edited by Culpable04: Jun 8, 2009 - 9:44 PM

[Culpable04]

I'm glad you pointed out the PMs, so that means they can be publicly posted here right ?

Before a car entusiast I'm a business man, everyone who knows me personally knows that, do you think me keeping this a private info is bad business ? then tell that to any company, go call mobil one and ask for their oil formula so you can mix it at home, or make your own coca cola too. I did all this with the intent of sharing the info, but the cost got too high as you'll find out if you do a proper research and not just slap whatever the internet says would work.

you asked me for the specs of my rotors so you could get " BETTER ONES " let me ask you something, did you ever asked me what kind of rotors I'm using ? how can you get better ones wihtout a point of reference of how bad mines are ? you want to do the re-drilling at home and you are calling my rotors cheap and unreliable ? did I think about me being liable for this ? yes, anyone who comes to the chat roon knows for how long I've been working on this, researching testing, because people I care for will be using this set-up, people who believe on my work will be buying these, and as it's state clearly you're not on that list.

do you know that if I give the information to everyone for free, and they get into an accidient due to this modification, I am also liable ? There is a reason why companies charge for R&D, but since I'm just a nobody, I should do all the research post the info for free to everyone and then get sued for it too. that would make me a cool person.

do I have a great personality? well, it depends who you ask, if you ask someone who tries to use me or make a fool of myself, the answer will be no.

I have had a registered business with the state of NJ for 3 years now, the only thing you know about me is whatever I decide is worthless enough to post for the worldwide world. I don't post my personal life here, I don't care for people to congratulate me for a new shiney little bolt on my car, so whatever comment you feel you need to make about how I'm not nice to you, do it.

give that Benz rotor a try, post back your results, so people can do stuff your way and not mine.