RX-7 4 piston caliper adapting bracket

[wookiefarmer]

You said that the rx7 callipers are metal. I have a set that is aluminum that I think is from a second gen rx7??

[Farbin Kaiber]

Best of luck.

[kowalski]

So is this for front and backs or just front?

fronts. after i do the fronts, some time in the summer i'd like to take a look at rear options, but its going to be much more complicated due to the e-brake settup.

[e304me]

rs4pro3, is this a worth while upgrade?

[SamE30e]

So is this for front and backs or just front?

[rs4pro3]

I had a problem where the caliper was hitting metal on the strut housings itself, you could either grind away the metal from the housing or the caliper. It's easy to tell once the caliper is bolted up.

[Axxe]

What did you machine off the bracket? If it's something that is going to save me some frustration I'd like to know (if you don't mind of course).

[kowalski]

No, I thought about machining down that nub but didn't. I did remove the mazda lettering but just did that to keep people guessing

thats my plan too, no need to broadcast mazada on the bimmer...

[rs4pro3]

No, I thought about machining down that nub but didn't. I did remove the mazda lettering but just did that to keep people guessing

[kowalski]

yes I did after making multiple test brackets, I also had to make some modifications to the caliper body itself

on the outside of the caliper for wheel clearance by any chance?
Thanks for your input by the way Ely, my original plan was to go through with the whole kit and then do this, but i wanted to see if people would actually be interested to give me some motivation... i guess i should have stuck with the original plan...

[rs4pro3]

yes I did after making multiple test brackets, I also had to make some modifications to the caliper body itself

[Axxe]

Well I look forward to seeing them, please post a straight on shot showing how well the caliper and the rotor line up between the brake pads :roll:

I'm actually trying to save you some future headaches of having some pissed off customers.

I just made my first aluminum proto, I'm off by about 10 thou for dead center. Did you get it dead on balls accurate? I'm hoping that everything will line up right on the second one. It's fucking hard to get it in one shot, I was using shims to get the initial measurement and still came a bit off. I'm planning on using 304 stainless, what did you use?

Realistically I could live with 10 thou, but want it closer.

[rs4pro3]

Well I look forward to seeing them, please post a straight on shot showing how well the caliper and the rotor line up between the brake pads :roll:

I'm actually trying to save you some future headaches of having some pissed off customers.

[kowalski]

The thing is you are assuming that just becuase that the test bracket bolts to the BMW strut housing and possibly to the calipers does not mean it works. That drawing I did is actually incorrect and does not work properly. It's obvious you haven't put much time into this. But hi if people do not mind uneven brake pad wear and not even braking forces sure go ahead and buy his brackets. And I am well aware of the time it takes to write CNC code, as I machined almost 10 pairs of brackets out of aluminum test fitting them them till I had a working prototype, that drawing posted is an early drawing and is not the final design I ended up going with.

good job. Pics will be the ultimate proof and i'm happy to provide them, and i will have them WITH rotors within 2.5 weeks.

[rs4pro3]

The thing is you are assuming that just becuase that the test bracket bolts to the BMW strut housing and possibly to the calipers does not mean it works. That drawing I did is actually incorrect and does not work properly. It's obvious you haven't put much time into this. But hi if people do not mind uneven brake pad wear and not even braking forces sure go ahead and buy his brackets. And I am well aware of the time it takes to write CNC code, as I machined almost 10 pairs of brackets out of aluminum test fitting them them till I had a working prototype, that drawing posted is an early drawing and is not the final design I ended up going with.