I have a first generation RX7 used in road racing. like to find a solution for larger rotors and brake pads. What is out there? I know that the rotor and hub are one piece that bearings and seals must be changed when replacing rotors.

 

What are you using now? GSL-SE has larger brakes and vented rears. There are kits that allow for second generation (86-91) brakes. These were available from vendors that no longer exist and some ebay sellers.

 

Noticed you have a 1979. The big bake kits that use a second gen setup require a 1984/1985 GSL or GSL-SE rear end. of course, some race guys fad their own.