| The square fitting that screws into the engine block has a small orifice to limit oil flow. There is a similar one on the DS turbo as well. For instance, from Z1's website, aftermarket SS lines: "These Stainless Steel braided oil lines complete with fittings and .035" restrictors are made for use on turbos with Garrett GT Ball Bearing cartridges." It does say ball bearing turbo's, but our stock ones have restrictors as well.
------------------------------------------------------------------ 1992 300ZX NA 5 Sp (Dead) 1990 300ZX NA Auto 2+2 (Dead) 1990 300ZX TT 5 Sp (Building) 2004 G35 Sport 6MT (DD) |