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Re:How the Upcoming Mazda RX-9 Will Keep the Spirit of the R... by HPsquared on Tuesday October 03, 2023 @11:26AM (#37753164)
How about supercharger (or turbocharger) + exhaust energy recovery turbine? Perhaps coupled to an electric generator? Would be a nice match to the hybrid electric system.
Re:How the Upcoming Mazda RX-9 Will Keep the Spirit of the R... by brucethemoose2 on Tuesday October 03, 2023 @01:34PM (#37755016)
> exhaust energy recovery turbine

That would be a turbocharger. And electric turbocharger and driveshaft turbochargers are also a thing.

The problem with turbo is backpressure from the exhaust energy recovery part, which compromises some other engine tuning. And the problem with traditional superchargers is low efficiency + high boost in low RPMs, same issue.

A centrifugal supercharger is relatively efficient and basically only does anything at high RPM, so from what I understand it won't "upset" the compression of the rotary or highly tuned NA engines as much as a traditional turbo/supercharger.