what size of oil lines
http://www.atpturbo.com/Merchant2/me...egory_Code=OIL
sorry for the hijack,
dan
They should be a MAX of 30° from straight down, preferrably less. Even with a restriced supply, a clocked drain will cause them to leak past the seals.
-4 is fine on the feed, most turbos will internally limit the supply anyway. But if you have one without an internal orifice, you might need a flow restrictor. They only really need a few GPM of flow, and maybe 60 psi of feed pressure. Ball bearing need even less.

