Is the twin-turbo Model from the 13B engine created to electric power the third-generation RX-7 introduced in late 1991. Every single rotor on 13B-REW has an individual combustion chamber volume of 654cc. With two rotors, the total displacement was 1308cc. Excellent healthy for a Mazda swap or alternative undertaking. JDMBUYSELL https://www.nwjdmmotors.com