This is one of the FC Wilwood big brake kits being installed in a FC, older pics for the guys in Okinawa, but looks good https://www.nopistons.com/forums/pub...IR#>/smile.png

With 17X9 wheel

what rotors are those?

precision engineering if I remember right, the pics were taken on Beau's 20b project FC. Dragon, Igy or Jspec will have to get the official name of the company.

i guess no one else has brakes?

O_o!! I didn't know Wilwood made a brake kit for the FC! is that a custom job?? I was on their site a few days ago and didn't see anything for Mazda. Where can I find more info on this kit..





Greg

no. my fluid leaks https://www.nopistons.com/forums/pub..._DIR#>/sad.png



that's one more bottle of fluid that I have to carry around with me everywhere...oil, coolant, brake fluid

Precision Brakes RX-7 Kit Here is the kit, not sure of pricing you would have to contact the vendor

the other one is k2rd, but the 6 piston and stock master make the pedal very soggy

is there an after market master cylinder or possibly a way to retrofit a master cylinder from another vehicle to handle the larger brakes.



Greg

Yeah, a master cylinder from a 929, or so I've heard. I read that on the internet once. https://www.nopistons.com/forums/pub...DIR#>/cool.png



The piston in a 929 master cylinder is longer/wider, I'm not too sure which, but it moves more fluid than a stock FC one.



Also: I want a big brake kit for rear too! 'Cause big brakes are bling-bling, lol.

well the 929 is pretty good, but its still not quite right. we tried a dual master setup and that didnt work either. we do have the plans for 4 piston rear brakes, but you loose the ebrake

Holy crap, 4 piston rears is pretty insane, lol. But, umm... how would you park the car without the ebrake??

I would guess you'd use a line lock, keep it in gear, or just dont park at all.

carbon/carbon...I WIN!

the bore on the 929 MC is 1in, FD and S5 are 15/16", S4 is 7/18". This applies to the turbo model FCs, but anyway has anyone found a reason to go with 6pistons and 4 in the rear?

I would think that you'd be able to lock them up pretty much at will even on race tires with a bigger 4 piston i the front and a proportioning valve, or at least thats been my experience in the past.

I've noticed that alot of the racing FCs use upgraded fronts (bigger rotors and bigger 4 pistson calipers) and larger rotors in the rear on stock calipers. What is reason for going even bigger?

the bigger the rotor, the more swept area. The more swept area you have, the cooler the pads and rotors run.

yeah obviously, but, that isn't waht i was asking. If you'll humor me for a second, increasing the caliper size or the number of pistons in the caliper also has to do with heat disipation but also with clamping force.



If you can already lock up the brakes with race tires on a 4 piston and have no heating problems why go to a 6?

My question is: at what point does an upgraded 4 piston caliper become not enough and the need for a 6 piston caliper arise? Under what racing conditions i guess is what i want to know.



This is important to me because i am almost finished what i thought would be a marketable big brake kit using a larger 4 piston caliper in the front and stock in the rear with larger rotors.