Is definitely the twin-turbo Edition from the 13B engine intended to electric power the 3rd-technology RX-7 launched in late 1991. Each rotor on 13B-REW has one combustion chamber volume of 654cc. With two rotors, the total displacement was 1308cc. Excellent fit for your Mazda swap or substitute challenge. I ordered https://josuebrjzp.59bloggers.com/39323769/built-13b-motor-for-sale-things-to-know-before-you-buy