Peripheral Porting: This is considered the most Intense form of porting for the rotary engine. Peripheral porting requires totally sealing the aspect consumption ports to the engine irons and creating a pretty significant port to the rotor housing itself. In contrast to the older 13B-REW that basically laughs at crazy https://13bengineforsalejapan31043.webdesign96.com/31401145/the-definitive-guide-to-mazda-rx-7-engine