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Joe Ferguson from Mantella Autosport assembles a Mazda Renesis 13B rotary engine using Goopy Performance seals and refurbished housings along with Racing Beat ported irons and lightened rotors.

Dave and Joe take you on a serious rotary geekfest as they show you exactly how these engines go together and explain how the unique Wankel combustion process works as well as covering some of the strengths and weaknesses of the Renesis vs older versions of the 13B.

If you're ever at a Pirelli World Challenge race, go say hi to the guys at Mantella Autosport, tell them we sent you, and get a good look at their amazing KTM Xbow GT4 racecars.

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