As mentioned above, I THINK this could reduce the amount of oil roping around. Isn’t that an avenue to pursue? Your obviously more versed in this than I so I appreciate your input.ptuomov wrote: ↑Sun May 13, 2018 9:10 am Are these segment barriers intended to manage air flow or oil flow?
In terms of air flow, in a four cylinder engine, one wants to either seal the bays completely or make them completely open. Small breathing holes are worst, because they neither allow the air to work as air spring nor allow for relatively constant pressure in the bay.
For a cross-plane V8 engine, managing the air flow is harder because per cylinder displacement is usually even larger and because there is no way to seal off the pistons on the same crank pin. Because of this, theory says that pulling a vacuum in the crankcase is especially beneficial in a big V8.
So what’s the theory why one would want to hose bay to bay dividers in a big wet-sump V8 without crankcase vacuum?
NHRA does not allow for any vacuum pumps in my class and am limited to a pan-e-vac or creative use of PCV valves and such. Used the creative PCV with a low speed / high speed system in Stock Eliminator. It would pull some impressive numbers on the dyno but when I removed the system from the car to see how it performed, I saw no change in performance. I believe a pan-e-vac will do a better job.