Is the twin-turbo Variation of the 13B engine made to electrical power the 3rd-technology RX-seven released in late 1991. Each individual rotor on 13B-REW has only one combustion chamber quantity of 654cc. With two rotors, the total displacement was 1308cc. Great in shape for any Mazda swap or replacement job. https://keeganvlpsv.blogars.com/37532767/built-13b-motor-for-sale-an-overview