http://www.cleverscampcamp.com/liter-high/

I have a pressure of 4.0 liters of oil very high?
you probably have a bad oil pump in it making it happen to him, when the valve sticks in the oil pump pressure from their real causes of oil in them, and to start leaking joints causes, try manual gauge connection to it and see whether its performance that's actually a high pressure oil, if it comes to changing the oil pump before it begins to blow out together her good luck.
BMW M6 5.7 Liter Stroker V10 564 HP Dyno Run