Is the twin-turbo Variation on the 13B engine made to electric power the third-generation RX-7 released in late 1991. Each and every rotor on 13B-REW has only one combustion chamber quantity of 654cc. With two rotors, the entire displacement was 1308cc. Great match for your Mazda swap or substitution venture. https://jdmmazdarx-7fd13b-rewengi21986.blazingblog.com/33850364/not-known-details-about-jdm-mazda-rx-7-fd-13b-rew-engine-for-sale