is the twin-turbo Variation with the 13B engine built to electric power the third-era RX-7 released in late 1991. Every rotor on 13B-REW has only one combustion chamber volume of 654cc. With two rotors, the whole displacement was 1308cc. Best suit for any Mazda swap or replacement project.The brand new Renesis engine was however a 1.3L rotary never