[czch]

But the P-47 is on fairly high power the whole time it’s running. Most Veyrons will never use 50% of their rated power.

That being said, modern metallurgy really revolutionized ICEs. Followed by computerized control.

[Gibbon1]

Not my field but the other difference is 1500 hp at 2,400 rpm. The low max rpm is because it needs to match the propeller design speed and needs to be efficient at near full power.

[lovecg]

Couldn’t you gear down?

This whole discussion makes me think what would a modern maxed out aircraft piston engine be like!