Is the twin-turbo version in the 13B engine meant to energy the 3rd-technology RX-seven launched in late 1991. Just about every rotor on 13B-REW has only one combustion chamber quantity of 654cc. With two rotors, the full displacement was 1308cc. Excellent fit for a Mazda swap or substitution project. JDMBUYSELL https://jdmmazdarx-7fd13b-rewengi32852.ivasdesign.com/55338514/5-easy-facts-about-jdm-mazda-rx-7-fd-13b-rew-engine-for-sale-described