With the seemingly never-ending popularity of Mazda’s 90’s classic, the RX7, it’s not uncommon for it’s successor, the RX-8, to get overlooked. At the time, the newly introduced Renesis engine, while a great performer at high RPM, lacked torque and overall power; mainly due to the extreme efficiency of the engine to meet strictly enforced emissions laws. Because of this, the naturally aspirated 1.3 liter rotary seemed to always get passed on for it’s older, turbocharged counterpart. Wanting to prove the RX-8’s worth, and to help stoke parts development of the chassis, Aoki-san at Revolution took on the task of building the ultimate RX-8. The first step? Ditching the Renesis motor for a naturally aspirated 20B.
