Is the twin-turbo Variation in the 13B engine created to electrical power the third-era RX-seven launched in late 1991. Each individual rotor on 13B-REW has one combustion chamber volume of 654cc. With two rotors, the overall displacement was 1308cc. Great in shape to get a Mazda swap or substitute project. https://zaneusjap.bloggip.com/33988766/about-jdm-mazda-rx-7-fd-13b-rew-engine-for-sale