Is definitely the twin-turbo Model on the 13B engine made to power the 3rd-generation RX-seven launched in late 1991. Each individual rotor on 13B-REW has an individual combustion chamber volume of 654cc. With two rotors, the total displacement was 1308cc. Ideal in shape for any Mazda swap or substitution job. https://emilioxeker.dreamyblogs.com/39281626/top-rotary-engine-for-sale-secrets