Is the twin-turbo version of your 13B engine meant to ability the 3rd-era RX-7 released in late 1991. Each and every rotor on 13B-REW has only one combustion chamber volume of 654cc. With two rotors, the total displacement was 1308cc. Excellent fit for the Mazda swap or substitution venture. Great https://jdmmazdarx-7fd13b-rewengi99764.theideasblog.com/34410387/not-known-details-about-jdm-mazda-rx-7-fd-13b-rew-engine-for-sale