May be the twin-turbo Edition on the 13B engine made to electric power the third-generation RX-seven launched in late 1991. Just about every rotor on 13B-REW has just one combustion chamber quantity of 654cc. With two rotors, the overall displacement was 1308cc. Best match for a Mazda swap or alternative https://kameronsybmn.blogdun.com/30342509/a-simple-key-for-mazda-rx-7-engine-unveiled