Would be the twin-turbo Edition of your 13B engine created to electricity the 3rd-technology RX-7 released in late 1991. Each rotor on 13B-REW has one combustion chamber volume of 654cc. With two rotors, the full displacement was 1308cc. Ideal fit for the Mazda swap or substitute undertaking. The 13B-REW engine https://mazda13bmotorforsale00864.wizzardsblog.com/38906051/the-best-side-of-rotary-engine-rx7