We might not have actually heard anything of Mazda‘s renewed endeavor into rotary engines since Hiroshima announced its objective to develop a new Wankel-powered sports car at the 2015 Tokyo Motor event. To summarize, the company revealed a sensational new concept called the RX-Vision, along with a brand-new SkyActiv-R name for its next-generation rotary engine, however no other information have been provided yet.
On the other hand, the brand-new positioning of the exhaust port would indicate that the manifold is now placed above the engine instead of down. This would efficiently reduce the exhaust passage, decreasing resistance and drawing out yet more power.
Packaging would likewise be enhanced by such a design. Engines like turbocharged variations of the 13B, put in later variations of the RX-7, included turbochargers that sat low down next to the engine, which might hinder other car parts such as a crossmember.
It’s possible that the repositioning of the ports is however one of the innovations Mazda is planning to pack into the SkyActiv-R engine. Expect other substantial modifications to be introduced in order to improve the rotary engine’s dependability, fuel economy as well as emissions. The brand-new sport auto is expected to debut in 2018, as a part of the 40th anniversary of the RX-7.