This thread raises some questions of a general nature regarding turbo applications that I have wondered about while comtemplating my own turbo build-up. Does anybody have any hard data to answer these questions:
Q1: How much oil do turbos need? I know this is application specific to some degree, but is the answer gallons-per-minute or gallons-per-hour. Some turbo oil lines I've seen are -3 or -4 AN size.
Q2: What are the heat rejection requirements necessary to cool the turbo oil?
Q3: Oil aeration is mentioned. What causes oil aeration in oil going to turbo bearings? I would not have thought this to be a big deal, especially on a singularly dedicated turbo oiling system. What am I missing? I know most NASCAR rear axles use singular cooling pumps and radiators and I never heard of aeration issues back there, even with gears and bearings whirring about.
Thanks for sharing your data with me.
6re6
