Could be the twin-turbo Model with the 13B engine designed to electric power the 3rd-generation RX-7 introduced in late 1991. Every rotor on 13B-REW has one combustion chamber quantity of 654cc. With two rotors, the entire displacement was 1308cc. Perfect fit for the Mazda swap or alternative undertaking. website, I https://kameronlhauo.buyoutblog.com/30933696/the-best-side-of-rx7-13b-motor-for-sale