When I see how well the dry sump oil system works on the 911 I wonder why it is not used on more high performance cars. The big ol tank of oil in the fender just keep supplying the oil pump no matter how long you run high rpm or slide around corners.
Back when Helmuth Bott came to Oklahoma to talk to the War Bonnet tech group he took questions and answers. One person asked the max sustained RPM for long time running on a 911. He did not blink, what ever red line is for that particular flat 6 of the day. He said they would take a production cars off the line, and take it to a chassis dyno for a torture test. They would run it flat out for 24 hours, let it idle, check the oil levels, and continue for a week. Then run it on the bump track to look for suspension issues.
Of course we were all talking of the air cooled cars with the engine in the back like it is supposed to be!
