May be the twin-turbo version in the 13B engine created to power the 3rd-generation RX-seven launched in late 1991. Just about every rotor on 13B-REW has an individual combustion chamber quantity of 654cc. With two rotors, the whole displacement was 1308cc. Perfect healthy for any Mazda swap or replacement job. https://rotary-engine-for-sale70257.popup-blog.com/37712173/examine-this-report-on-rx7-turbo-2-motor-for-sale