Would be the twin-turbo Edition in the 13B engine created to electrical power the third-technology RX-7 released in late 1991. Just about every rotor on 13B-REW has one combustion chamber quantity of 654cc. With two rotors, the overall displacement was 1308cc. Excellent match for a Mazda swap or alternative undertaking. https://13b-rew-for-sale06834.blogozz.com/29276930/about-mazda-13b-motor-for-sale