Could be the twin-turbo Model from the 13B engine made to electricity the third-era RX-seven released in late 1991. Just about every rotor on 13B-REW has only one combustion chamber volume of 654cc. With two rotors, the whole displacement was 1308cc. Excellent healthy for a Mazda swap or substitute undertaking. https://jdmmazdaengine56091.blogstival.com/60380213/about-mazda-rx7-engine-for-sale