May be the twin-turbo version on the 13B engine created to electric power the third-generation RX-7 released in late 1991. Each rotor on 13B-REW has just one combustion chamber quantity of 654cc. With two rotors, the full displacement was 1308cc. Fantastic in shape for the Mazda swap or alternative undertaking. https://mazdarx7turbo2engineforsa45689.prublogger.com/37847293/the-smart-trick-of-custom-rx7-that-nobody-is-discussing