Originally Posted by Bails
Dry sump is a biggie , I have herd that one reason that the boxer is limited is crank case pressure. I remember reading about such things as reed valves to allow the crank case to breath better in Racing BMW's. I would think if more power it would mean more rev's and more heat then there are a few issues that would need looking at.
I had never thought about that issue. There must be some significant pressure fluctuations with both piston compressing then expanding at the same time. Dry sump could definitely help eliminate the headache.