May be the twin-turbo Model in the 13B engine made to electric power the 3rd-technology RX-seven released in late 1991. Each individual rotor on 13B-REW has only one combustion chamber quantity of 654cc. With two rotors, the entire displacement was 1308cc. Perfect healthy for any Mazda swap or alternative undertaking. https://mazda13bmotorforsale27036.digiblogbox.com/55082315/5-tips-about-13b-engine-for-sale-you-can-use-today