Comments by "John Burns" (@johnburns4017) on "Mazda's only EV died in 2022 - its been reborn in 2023 as a rotary powered hybrid" video.

  1. @ttinlv But not with a small, light, rotary.
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  2. The rotary is about one third smaller and lighter than piston engines. No heavy bulky mechanical transmission. When running on battery there is less weight to lug around. It is also smoother than piston engines. The rotary is more efficient with greater longevity, when running at a constant speed. Running on hydrogen 25% more efficient again. Also as it is a primarily a part time engine, it will last far longer as it will operate less. I read it may have variable valve timing, is that the case? What is the rpm? As a rotary the Wankel is far from the best design. Liquid Piston and the Omega 1 are far superior. Especially the Omega 1. But is this application it is better than pistons.
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  3. Just read it revs at 4,700 RPM. Quite low for a rotary. but it only runs at that constant speed.
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  4.  @toyotaprius79  The Nissan e-power can only run on battery for a very short distance. It has a heavy piston engine but a bonus of no power sapping heavy transmission. As battery technology improves, in about 5 to 10 years you could swap out a battery set on an MX-30 or e-power and transform the car. The MX-30 & e-power may have a 200 miles range compared to the 53 it has now. Then the engines will rarely come in and are true range extenders. Not sure if the Nissan e-power can be plugged in though, if not an after market mod plug can be fitted.
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  5.  @FenixYuk  It is a part time engine, it is the overall running figures over a year that matter. Being a part time engine it is guaranteed longevity.
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  6.  @FenixYuk  A rotary is about a third of the size and weight as a piston engine. So the battery has less weight to lug around when on pure EV, which will be most of the time. The rotary is far smoother and far less parts than the antiquated piston engines. Reliability is guaranteed. This is all interim as all cars sold in about 10 years will be EVs.
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  7.  @FenixYuk  The Nissan mechanical setup is bigger and heavier with a complex piston engine.
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