Is definitely the twin-turbo Model from the 13B engine designed to electric power the third-technology RX-7 released in late 1991. Each individual rotor on 13B-REW has an individual combustion chamber volume of 654cc. With two rotors, the full displacement was 1308cc. Great suit for a Mazda swap or substitution undertaking. https://rx7-motor36791.widblog.com/93662923/the-13b-turbo-2-engine-for-sale-diaries