ChristianPatriot
Grandmaster
That's part of it I believe as well. But another thing is more HP requires more fuel. If the injectors and fuel pump aren't up to the task, you wont see the gains you're hoping for
Another thing is, it takes horsepower to spin turbos or superchargers. So that blown motor making 450hp may actually be making closer to 500hp but it’s getting eaten up by parasitic losses caused by spinning the blower, turbo, etc.