As you well know, IN!

Just need to test fitment with the K1's and 6UL's.

If they'll fit with RPF01's, I'm probably in as well.

With all of the ideas/group buys/random deals, this site is pretty much a siphon connected to my checking account.

I don't have a clue how we are going to do the test fitting. Someone might have to send me one of the tightest known wheels for clearance and once we know it fits, then we can assume it will fit the others.

I can't go purchasing 100s of wheels for a $75-85 part. :)

Doubtful.

What do you all think the total cost will be when all is said and done?

I decided not to wait, and wound up buying a set of used 2004 Sport calipers F&R and the appropriate proportioning valve for $300. Rotors are costing me about $150, and I think I'm going to get stock Mazda pads for the street for $113.

For track duty, I'm planning on Carbotechs.

C

Whos talkin' shit on my 17s now? Gee.. wonder if they'll fit.. :giggle:



I'll pay 75-80 for these brackets. Actually, I'm in for TWO sets!

Send me the prototype and i'll test fit them on my 6UL 15x8s +36 offset.

Im in.

Got a set of Corrado Rotors and FC calipers sitting in my garage. Just waiting for brackets.

FWIW the FC Rx7 with the 4 pot calipers has 15" wheels, so I would think clearing 15's wouldn't be a problem.

i'm sure 14's are out but it would be nice if they fit stock 15" wheels

What model calipers do we want to use? The ones from the 5 Bolt Wheel FC? Turbo or Non Turbo?

All 5 bolt models have the 4 pot callipers I believe. You obviously would want to model your brackets around the 4 pot calipers, that's the idea. All 4 pot calipers are the same from 88-93 IIRC.

Mine came off an FC T-II.

Found some rotors, for anyone interested:

http://www.racingbrake.com/v/vspfile...2003-211-2.jpg

Two piece full floating baby! They're a steal at $259.79 each!

http://www.racingbrake.com/

They also sell some 1 piece quality rotors for around 80$ each. Also sourced a Brembo part number 25431. Thats a solid 1 piece non-slotted or drilled blank.

A seller on ebay claims to sell Brembo Drilled rotors for the Corrado, and while the picture shows an authentic Brembo rotor, obviously its not the exact item up for sale. Might contact them to make sure.
http://cgi.ebay.com/ebaymotors/ws/eB...ksid=p3907.m29

FC RX7 Turbo II.

and no fair bidding against me on the partially polished set of calipers on ebay that's ending in 2 hours... I'll be pissed if one of you takes them out from under me.

I had some for sale a while back, should have picked them up. :) I have another set that I'm gonna use, but if I find another set I'll give you first shot.

I still think I could make these brackets for 20-30 bucks. I have my own lathe, just gotta get a 3 phase rotary converter to run it. Could go static converter but I'm afraid to cheap out and risk blowing it.

I'd probably have to make the spacers in the lathe and weld them onto the flat stock, then drop them in a jig and drill them out. I still don't see why people would charge so much for something so simple. What, a piece of 1/4" flat stock maybe and then two pieces of 1" round stock cut off the correct length to offset the calipers correctly.

If anyone has a simpler idea of how to make them I'm all ears.
Of course, I feel the same way about fuel rails and stuff like that. Super simple stuff, and they charge waaay too much for it.

TIIs are too rare in the junkyards, well here at least.

The calipers from the non-turbos are the same. I've picked up 4 sets of these guys from junkards lately. 3 of the 4 were off of non-turbo models, they are exactly th same as the one that came off of the turbo model.

yea, i just asked someone. as long as its 5 lug, it should have them according to him. so that means GXL's and GTU's should have them

I have a set of rebuilt 5 lug calipers on the way, and a set of Hawk Pads. The shop is going to order a NAPA rotor to do the test fit, and then I will get a set of brmbo rotors once we get the production piece back.

confirmed.

any RX7 with a five lug hub has these calipers.

i just scored some at my local JY

Whats our time like looking like for this one?

They are planning to do the fab work next Saturday. Then it is off to get them mass produced.

I'm in for a set of these damn things asap.

WOOT!!

Curious about materials, Do we know yet if they're going to be Aluminum or Steel?

Personally I want Steel (Coated) and this is what I have asked for. Stronger, and less chance of someone stripping any threaded holes. Weight won't be much of an issue since they are small brackets.

SO IN! have to make a trip to the junkyard on monday.

Anyone else wonder if there will be any issues with brake lines?

Mark,is there any chance you could have rear caliper brackets made to retrofit the 01+sport brake rotors?

Good deal, I don't want aluminum either. Weight isn't a concern for me, at all. :)


As for lines, I haven't had a good chance to look at things yet, but a miata uses a Banjo fitting on the caliper, where the RX7 uses a hardline and double flare at the caliper, but goes to flex hose on the hub bracket.. Odd, but don't think it'll be a problem. Just need to source some different lines from SSBC or something. Will get on that here in a couple days and report back what I've found.

Ok, these aren't my pics, I found them on the net. Anyways, these pics show there is NO OFFSET IN THE BRACKETS!!! It's a piece of flatstock with 4 holes. That's it. This kit used a couple small spacers to get the offset. Basically a thick washer that's the correct thickness for proper offset. The spacer goes between the bracket and the caliper. I have a lathe, I can easily turn these out.

Now I know I can make these cheap. Also I see no reason why these couldn't be aluminum instead. Who wants brackets for 30 instead?


Attachment 213406

Attachment 213407

Attachment 213408

those are from that japanese website posted earlier.

if you can make them for 30 bucks, im so down. But i think steel might be a better choice due to the expanding properties of aluminum. These will be under extreme temperatures.

The calipers are made of aluminum. They'll probably be hotter. I don't see aluminum being a problem myself, though they could be made of steel as well. Steel is cheaper, aluminum is easier to machine.

i see. are you going to follow what is done on that website?

you need to shave off the mounting points on the brakes themselves and they are suposed to be mounted on the outer bolt holes which hold the calipers together i think. i should tear apart the brakes and rebuild them while im at it.

I don't see a reason why these couldn't be laser cut as long as they have it setup right and they don't have warp issues like some laser cutting companies. The flanges could be lasercut and re-flattened or squared. The spacers would be a simple operation as well, there is probably spacers that you can buy to spec off the shelf already even.

Be careful tearing apart calipers, some companies never made the parts to rebuild their calipers available to the public. If that is the case you're better running them till they have problems then buying remans elsewhere.
Mazdatrix might carry the correct parts or maybe Ben(mazmart) would know more about it.

got it.

one thing i did notice more closely as i read through the website and i finally got through it (google translations have a limit on the understanding of translations sometimes). The guy had problems with his wheels. Reading more, if your wheel mounts FLAT on the hub without any real space (like some sportmax or rotas) you WILL hit. K1's seem to have a large amount of space so you wont have problems if you are using these. you need a spacer to clear it if it mounts flat along with the spokes or wheel

I went further through that website, and it seems they also have a rear kit. I didnt read into the details, but it seems you can also use the rear brakes of an FC, and will bolt on directly without any real fitment problems.

I'm in for both front and rear brackets, (or fronts only if that is all that is made).

I'm in for a set of brackets.

FC rears bolt on with no adapters? I might pick up some at the junkyard and try it. Don't the miata front calipers bolt onto the rear without an adapter as well?

The pics are using Miata rotors, we have full intentions to make brackets for the Corrado Rotor, and *maybe* the stock 1.8 non sport rotor. We don't plan on cutting the ears off unless we have to.

I will know more when they start working on it next week.

While I'm not an engineer on thermodynamics or brake systems, I think it'd be a waste of time using the stock 1.8 non-sport rotors with 4 pot calipers..

The extra diameter rotor gives you more braking surface area for the pads to grab, and more surface area to dissipate heat away from the rotors. While maintaining the stock size rotor and adding more grabbing pressure might benefit a little, I don't think it'd improve non-lock brake ability any, if at all for the benefit.

Thats just based on what little I know about brake system design. I myself am interested in the biggest rotor I can squeeze on the car. :)

I'm with you, but I can tell you that it would still increase braking performance. I used to have stock rotors with the KVR 4 piston calipers on my old car and it stopped great!

Well, someone was all over the rear calipers on the rx7 at the junkyard, so I couldn't pull them to see if they fit on the miata. It's got a LSD though, so I might have to go back and pull that.

using the bracket they made for the rears, it iwll bolt on. thats all the info it gave me.

while the extra diameter helps dramatically....ever put a heavier PP on a stock 200mm clutch and was able to not have it slip in boost, where before it did? same idea.

I missed some of this. What adapters? What rotors? Which calipers? I can go grab some.

its on that japanese website that was posted on the second page. ill read a little more on it, then ill let you know the scoop on it.

EDIT: i love being able to read japanese hahaha.

http://speed.garage-tsr.com/brake3.htm

theres your rear setup fellas.

No fitment problems, and its a direct bolt on.



EDIT #2:

Even MORE INFORMATION. http://speed.garage-tsr.com/habu.htm
this is a post showing that the FC centric hubs that go on the spindles are also DIRECT SWAP. these are better because they do sit further than the miata hubs. Might help with clearance of the FC calipers, but they seem to be using the 4 bolt pattern, not the 5 bolt which the 4 pots came on.

apparently, you can buy them brand new form the dealer using that part # listed, and it costs generally 60 bucks each.

More for thought: Isnt the hub pattern on the RX-7 114.3 x 4? someone correct me. if this is true, you will have a variety of jay dee em tyte wheels for you at your disposal.

We started last night... Major clearance issues using the Corrado rotor and RX7 Front Caliper. Won't even fit with my 16" Volk TE-37s.

Going to the wreckers in a few minutes to see if we can find a solution.

Really? The 4 Pot's fit under the 15's that the FC has. Anyone tried FC rears to see if they bolt up yet? If I have time I might go down to the local junkyard and take some measurements.

The step on an RX7 rotor is much deeper than the G60. We have an 88 TurboII here with my miata to compare.

If you take a look at the pictures from the Japan kit they use a big ass wheel spacer to make this work. I certainly don't want a 1cm spacer on my car.

We might be able to make brackets so you can use the 11" rotor with stock Miata calipers. It actually looks pretty good when I chucked it together for 30 seconds.

Good thing is that it would be very inexpensive and great when people need to install new brakes, but also a performance upgrade.

Let me know if anyone is interested in this? I personally am, but 1 person is not going to get this in production.

Thanks

Hmm, what about the RX7 calipers squeezed onto the stock 10" rotors? That's was my plan originally. Well, the stock calipers are a tight squeeze on the 10's for my factory 14's to fit. I'm sure they wouldn't fit with the RX7 calipers. However they might fit with 15's.

Also, how close did your bracket put the caliper to the center of the rotor? Could you get it closer to give you the needed clearance, or is it already as close as possible? The stock calipers on my 99 are CLOSE to hitting the rotor, very close.

+1

Tried.. Not going to happen... The owner of ETD owns a 1988 Aniversary Turbo RX7. Take a look at the dish of the rotor on an Rx7 and you will see why they work on that car. You have 2 cm extra dish on the rx7 rotor. If we use the Rx7 rotor it will hit the ball joint, nevermind the bolt pattern is wrong.

No play with the caliper on the rotor. Atleast with the brand new pads.

The guys in Japan used mad spacers!

We should be able to work with a stock caliper, but even then you might have to grind the back of the brake pads 1mm on each side to compensate for the thicker rotor. Miata = 20mm G60 = 22mm.

I think they were talking about stock 10" miata rotors with the RX7 caliper, or possibly with the sport rotors.

Edit: looks like I need to work on reading comprehension

Weird. Define not going to happen. Well, you don't have to, I'll check it out this summer. It's weird because there's too much talk of people doing this to dismiss it as not gonna happen. I dunno, I have not test fitted anything yet. I guess the wheel curves in and hits the caliper, and that's the problem. Not that the wheel is no big enough, but that it curves in and clips the calipers. As you say, a wheel spacer would solve that, or offset rotors.

Basically we tried all kinds of different ways to make it work, and even shaved off the Mazda Logo and bump on one to create extra clearance. Unless someone can find a different offset 4 x 100 11" rotor it won't work.

We tried with both an 11" G60 and 10" Miata. Major clearance issues and that is with my 16" wheel.

People have done this before, with a big ass spacer, or like 50+ offset wheels (Doubt that). The caliper hits all of the spoke on my wheel. These calipers are friggen MASSIVE!

Yea, I understand what your saying. The problem is the calipers hitting the spokes of the wheel. I have a 18x60 lathe, so I could chuck up my wheels and machine a bit of the spokes out of the way for clearance if a little was all that's needed. Could also chuck up the calipers and turn a bit off of them with the proper offset in the chuck so that the outside of the calipers had a XX radius that matched the wheel. That's not something the average guy would do though, but it might make it possible anyway.

You might be able to get it to work with major machining to your wheel.
Do you have the RX7 calipers yet? Take a look at them compared to stock. You will see what I mean.

It was quite evident as soon as we started to play. :( I have access to a Mill and a lathe, but the purpose is to make a kit for the masses, not just for me.

Yes, I have a pair or RX7 calipers, but they are not here with me. They are a lot wider than stock though. I know what you mean though, they are huge compared to our stock ones. Perhaps a slightly more offset rotor combined with machine a little off the stock wheels would give me enough clearance. Still, I'd likely need 15's for even that to work.