Dry Sump

[4agedub]

If the oil pressure stays up, is the aeration such a big problem?

I drove the car and the oil pressure stays at 5bar, no oil pressure drops. Would'nt the air be pressured to allmost nothing when the oil is pressurised?

[CLKWRK]

bubbles in the oil are very bad because air does not lubricate, the whole point of the dry sump is to eliminate air in the system. Air also will compress, so your pump will have to work harder to pump the same volume of oil. I dont think there is a huge problem if the oil pressure stays up, just make sure the oil going into the pump isnt frothy which I highly doubt if your tank is big enough.

[4agedub]

I understand what you mean by the bubbles does not lubricate... but if the bubbles are compressed and the oil pressure stays stable does'nt this mean that there is proper oil in the system?

Sorry to ask all the stupid questions, but I'm at a dead end here.

I've tried using a thinner oil, checked for vacuum leaks....

This weekend I will try to install a 3/4" hose for the return as well and discard the 2nd oil cooler and 2nd fiter for experimental purposes to try eliminate the aeration.

If the aeration dissapears I think I will install a 2nd oil cooler on the pressure line from the pump to the engine...