Just out of curiosity, I look up the chamber pressure of the two engines. The chamber pressure of the V2 engine was 15.45 bar, the chamber pressure of the Rapto

Just out of curiosity, I look up the chamber pressure of the two engines. The chamber pressure of the V2 engine was 15.45 bar, the chamber pressure of the Raptor engine is 300 bar. And that's before we get into insane complexities of a full flow combustion cycle vs the open cycle of the V2's engine. Definitely a lot more complex.