Finally my new tires have arrived!
I decided to go with what all the Time Attack cars run in Japan - Advan AO48's. Sized at 225x35x18 and 285x30x18. I'll have to ideally get some 265's for the front, but the 225s were a bargin.
Matsuda FD3 RX-7 GTフェンダー Since 1992 I've been a dedicated enthusiast of the Mazda RX-7 FD