Oil pressures and
oil viscositys T he boys of Nascar are using W0-30
oil for racing. The motor only lasts 600-700 miles. The golden rule is 10 lbs for every 1000 rpms. I do not think this work at 10000 rpms. An Alky funny car when start up and idle( if you can call it that is 175 lbs. By the end of the track it is about 50 lbs and the oil is destroyed due to fuel in the oil. Nascar looks like about 60 to 70 lbs at speed depending at what track they are racing. Does anybody use a sandwich filter like Oberg or Omni. Gyann GT 350 is the only one, it is reuseable, clean with brakekleen and reassembly. Different filter screens are available. When I put the dry sump on I am thinking of going to one of these filters. You would need to tap the last bearing to get oil to know the correct oil pressure of the engine. Years ago someone sold an oiling system for the 427 side oiler to get more oil to the mains. It taped right off the oil filter housing. the side bolts where hollow for the oil to flow through them. I have a 100 psi spring in my motor and a high volume pump. When the motor is hot I get 40 psi at idle 750 rpm and goes to 75psi at 2200 rpm. I think its safe, but not for pulling 1G inautocross and roadracing. The better cars all use dry sump systems just like Nascar. Rick Lake