is the twin-turbo Variation on the 13B engine meant to ability the third-era RX-7 launched in late 1991. Every single rotor on 13B-REW has only one combustion chamber quantity of 654cc. With two rotors, the overall displacement was 1308cc. Fantastic match for just a Mazda swap or substitute project.Drew Blankenship Drew Blankenship is a former Pors