Is definitely the twin-turbo Edition of the 13B engine built to electrical power the 3rd-generation RX-seven released in late 1991. Just about every rotor on 13B-REW has just one combustion chamber quantity of 654cc. With two rotors, the total displacement was 1308cc. Best match for your Mazda swap or replacement https://andersontyhgf.ageeksblog.com/29807402/the-best-side-of-rotary-engine-rx7