What size oil feed are YOU running?

[2bar4g63t]

hi, just got my 57 trim t3/t4 and was wondering what size oil feed and return line would be best for this set up.the other day i read that a -4an can blow your turbo seals or screw it up somehow?so what is my best option, -3an?any help would be apreaciated.thanks

 

[DSMJim]

Yes -3 is your best choice. -4 is a lot larger and typically puts too much oil though the turbo. The stock restrictor brings the line down to the size of -3 and many times we have to eliminate that piece with a braided line so the -3 does the same thing.

 

[2bar4g63t]

ok cool, -3 for the oil feed, what about the return line to the oil pan?