My rally car has a t34 turbo. The oil feed union on the turbo is an6 fitting with the plate. My question is should I have a restrictor in the pipe as the an6 hose is much bigger than a standard hose. From what I have seen most of the rally turbo's have the an6 fitting but I wonder with so much oil going through it,does it effect oil pressure else where???

 

I have put restrictors in my turbo oil feed when i had issues with blow by in the turbo cartridge, if it doesn't smoke from the turbo then leave it.

 

Good man cheers. There isn't any smoke so I'll leave it be!