would be the twin-turbo version on the 13B engine built to electricity the 3rd-generation RX-seven released in late 1991. Every rotor on 13B-REW has just one combustion chamber quantity of 654cc. With two rotors, the whole displacement was 1308cc. Excellent fit for a Mazda swap or alternative job.The new Renesis engine was nonetheless a 1.3L rotary