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by bigiain
1919 days ago
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> A Veyron engine puts out about half the HP using 17% of the displacement on worse gas. Not at 45,000’ altitude it doesn’t. And that Veyron engine won’t be too happy running at 80+% of its rated power level for more than a few minutes at a time. |
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This is the part that a lot of people are unware of when it comes to engine power ratings --- aviation engines are designed to run at their rated power continuously, while most passenger car engines aren't. Even comparing a truck engine with the latter has people confused at why the power numbers seem so small both absolutely and relative to displacement. A 9L engine in a truck used for pulling semitrailers may make "only" 330HP, but it can do that continuously, and indeed will spend the majority of its life at or close to full throttle.