Viewing a single comment thread. View all comments

t1_ja6d085 wrote

An important thing to also keep in mind is a vehicle engine is only called to produce maximum power for short intervals. While farm and industrial equipment may be asked to output rated power continuously for hours. This means for any given displacement you'd expect the farm and industrial engine to produce less power to increase service life and reliability.

25

t1_ja840jx wrote

Yep, and if you looked at a curve of power output to engine size it follows reliability pretty closely, except for some badly designed outliers. The more hp you ask of an engine of the same size, generally the less longevity it’ll have.

There are 10+ liter turbodiesel engines in semi trucks putting out only 300-400hp that’ll go a million miles easily. On the other end when’s the last time you saw a 120hp 600cc sportbike with even 100,000 miles on the engine?

3