I should probably add that I had improved the oiling system prior to this happening.
It has a high volume
oil pump, a windowed or road race sump and is over filled for track duty.
Winton is a hard track on engines as many of us that have trashed something going around the sweeper.
If I am going to continue to race I will need to do something like dry sumping so it won't happen again no matter how hard it is thrown through corners.