Highest rpm for four-stroke ever?

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Re: Highest rpm for four-stroke ever?

By: Anonymous: JeanD () Monday, 15 May 2017 @ 07:48 PM ICT (Read 284 times)

What is the highest rpm for a four-stroke engine ever reached?

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Re: Re: Highest rpm for four-stroke ever?

By: news (offline) Monday, 15 May 2017 @ 08:00 PM ICT

In a Honda research center in Japan, the highest four-stroke RPM where able to explore was 26,000rpm. This was back in 1964.

19,000rpm for the highest service peak-power RPM reached by Honda’s NR500 four-stroke GP engine, this was in 1982…

And if we about RPM numbers the first recorded four-stroke engine from Nikolaus Otto had 180rpm for its four-stroke internal combustion engine in 1876.