This there any place a guy can get High performance brakes (for close course racing) for 1983 RX7s? I am looking for aftermarket caliper's and rotors and pad for front and rear.

 

Mazdatrix has a stoptech kit for larger brakes. Or you could make some custom brackets and a bearing ad apter and use the tii brakes. Respeed used ti sell a kit with brackets and a bearing adapter for the hub but lately they haven't been delivering their parts..

 

http://www.kcraceware.com/suspension.htm

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Brakes & Components - Xtreme Auto Parts

 

Guess I never knew that KC Raceware did a 3rd link. Custom tri-link system here I come!

Yeah, RE-Speed's kit is on my "To Replicate" list but I'd have to get my hands on a set first. I'd go with the KC Raceware kit for now though, looks like a well-built and tested kit.

 

Have you been through better pads and rotors? Summit sells StopTech slotted front rotors and Hawk Blue pads for front and rear.

 

RB sells slotted rotors and Hawk pads. Pricey tho..

 

Here is what I did:

https://www.rx7club.com/1st-generati...twist-1029145/

 

Thanks for the reply's. I am looking for after market calipers and rotors that will stand up to road racing. I have four wheel disc but have heard that the stock rotor are prone to cracking and warping and that the stock calipers seals don't hold up to the heat of racing. I am building up an engine that will have around three times the power that I have now so that will be putting a lot more on the brakes.

 

There are a lot of variables in your request that you'll need to honestly assess:
A. How much cooling air you can force through the rotors
B. How acceptable are pure race pads? (don't grip when cold)
C. How much rotor and pad wear you can tolerate
D. How much dust and noise you can tolerate
E. Max permissible wheel diameter
F. How much $$ you are willing to spend

Like most engineering problems, there's no solution that checks the "win" column for all of these. If you're willing to make compromises, a relatively small brake system can work on a track, but you'll need to maximize A - D. The high pad and rotor wear, will over time, affect F. We ran a set of very aggressive pads on a racecar. At night, it looked like the brake discs were on a grinding wheel -- sparks everywhere. We went through pads and rotors like crazy, and they didn't work well until heated up, but when they got up to temp, they were very good.

If you plan on driving on the street too (like I do), a full race setup is risky. Bigger brakes are a better solution. Larger dia wheels are the most efficient way to get better thermal mass and cooling. You'll have to decide what dia wheel is best for you.

This is a link to a thread on my brake upgrade. It works great, but it wasn't cheap or off the shelf:

https://www.rx7club.com/1st-generati...talled-617284/

 

This is a race only car it was set up to race in the pro 7 class. I run the car at track day events (NCRC) and I am building the car up to more of E production. With over 200 HP the car will be hitting 40 to 60 MPH faster at the end of the longer straightaways so I will need more braking to get it down for the corners. I have built race cars back in the 80s (Sprintcars) and you can't go faster if you don't have the brakes that can do the job and road racing cars it is even more important.