Wankel rotors of 13B The 13B will be the most generally created rotary engine. It absolutely was the basis for all future Mazda Wankel engines, and was developed for over 30 many years. The 13B has no relation to the 13A. As a substitute, it is a lengthened Edition of the 12A, getting 80 mm (3.If all of your pieces are completely useable. But most