Is definitely the twin-turbo Variation in the 13B engine created to electricity the 3rd-era RX-7 released in late 1991. Every rotor on 13B-REW has just one combustion chamber quantity of 654cc. With two rotors, the entire displacement was 1308cc. Perfect in shape for just a Mazda swap or replacement task. https://rx7-engine02852.collectblogs.com/83488300/the-mazda-rotary-engine-sale-diaries