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Hi, I am working on a Gen 1 RX7 and couldn't find any big brake kits so I made my own with some help from Wilwood. Machined down the stock rotors on my lathe to hold the new 300mm Directional vane rotors. The conversion was actually pretty easy. Haven't had it on the track yet but hoping it works well.
Thought I would share some pictures.
New Vs Old
Used the stock rotor and machined it down on my lathe to accept the new 300mm rotor
As I mentioned above I have not hit the track with the new brake system yet. Really don't foresee any balance or pulsation issues but you never know. The rotors are Wilwood GT36 series curved vane design.
I thought about doing that too. But had decided that being a casted metal (seeing a few rotors come apart) it may not hold up. Then found that KC Raceware makes aluminum hubs and a brake kit.
7's Only ( Home )makes a couple different brake set ups too. Along with A Strut with bigger tubing for a real shock.
I have the 7's only Strut/brake on my car. I ran a smaller rotor so I could use 13in wheels.
I know this is a little late. But you did a great job on it. Looks like it should work.
I thought about doing that too. But had decided that being a casted metal (seeing a few rotors come apart) it may not hold up. Then found that KC Raceware makes aluminum hubs and a brake kit.
7's Only ( Home )makes a couple different brake set ups too. Along with A Strut with bigger tubing for a real shock.
I have the 7's only Strut/brake on my car. I ran a smaller rotor so I could use 13in wheels.
I know this is a little late. But you did a great job on it. Looks like it should work.
No worries. I actually checked with Tom at sevens only and he doesn't make a big brake kit for the first gen. I checked with Mazda Trix, and a couple of others also. Couldn't find what I was looking for. I talked to KC and he was real helpful but his brake upgrade is the same diameter as the stock rotor. THe rules in the class I am racing in allow up to 300mm rotors so that's what I built. My car won't be fast in a straight with the stock 12A and stock exhaust but it should stop really well.
Last edited by samiam888; Jan 6, 2016 at 07:28 PM.
I will be racing in the STL class in the SCCA Major series. Hoping to qualify for the runoffs at Mid Ohio in September. Doesn't look like I will be ready for the first race at Auto Club Speedway with the RX7. I will be there helping my son who will be racing in the Formula Vee class. Hopefully I can get in a test day before round 2 at Willow Springs in mid February.
Wow this is really cool! Also interested in which wilwood caliper you chose! Looking forward to news on any balancing issues, which is also the first thing that came to my mind. Nice work man.
