rapidcossie, the problem you have, is that you're looking at 1 changing factor in an engine's design, and it's overall peak bhp, to compare 2 different engine, and makinjg an assumption based on that one factor.

it's likecomparing a bog standard ford focus, and a ford focus WRC car, and saying that the reason the WRC car is faster on a rally course is because it had bigger brakes. you're just missing the other fundemental changes which has caused the car to change