Is the twin-turbo Model of the 13B engine built to electrical power the 3rd-generation RX-7 released in late 1991. Each individual rotor on 13B-REW has only one combustion chamber volume of 654cc. With two rotors, the total displacement was 1308cc. Perfect in shape for the Mazda swap or substitute challenge. https://13b-engine-for-sale-japan25925.spintheblog.com/31255605/the-smart-trick-of-mazda-rotary-engine-sale-that-nobody-is-discussing