Quote:

The dyno data we have generated and received back from a variety of engine configurations indicates that power starts to increase roughly around 2750 rpm and that it peaks at 2% to 3% at the maximum rpms for the engine (NA).

The Metro three cylinder peaked at 5300 rpm and had 3% return, for example. Look at the stock Ford FE pan with a scraper in the floor. Big old stock V8s rarely ran over 4500 rpms, yet there is that scraper.

If you look at relatively recent (2004) SAE papers you will learn that a steady 2000 rpms is sufficient to generate enough foam to fill a crankcase. That research was done at MIT.