I am just making sure everyone with turbines does not run a oil line straight from the block to turbine because its usually to much pressure and will blow seals.
i think you can get recommend oil pressure at idle and while revving ,on internet buy the manufacture.........usually between 5-30 psi ,so you need a valve with a pressue gauge to regulate. just tryin to help and know most peolple just run it to the block

 

about 95 percent of turbo's nowadays have built in restrictors. everyone should be fine with running a -3 an line. research before you say something.