Wankel rotors of 13B The 13B will be the most generally generated rotary engine. It absolutely was The premise for all foreseeable future Mazda Wankel engines, and was made for over thirty decades. The 13B has no relation towards the 13A. Rather, It's really a lengthened Edition in the 12A, possessing eighty mm (three.JDM Engine Depot is often a v