T2 turbocharger on smallblock, oil feed line pressure regulator

[Edd]

should i be fitting a pressure regulator on the oil feed to a T2 turbocharger?

the turbo is from a R5 GTT if that makes any difference

never seen one fitted on the old Courtenay conversion

is this a new thing to preserve the life of the turbo?

i know they get fitted to ZLET/LEH chargers, but just presumed that's because there made of crap

[craig green]

A feed from the oil ways in the block is fine. Either off the back of the oil pump via a T-piece or even threaded into one of the galleries in the block. If I was doing it I'd thread into an oil gallery off the side of the head which would keep the oil line to the turbo shorter & neater than draping it round the side of the engine to the back.

Jeez I haven't logged in here in ages!

[Edd]

Even though all the pictures are ruined because of Photo bucket scumbags I thought I'd post on the forum as I'm more likely to get sensible responses rather than the utter retard dribble that gets posted on the Facebook pages

[Edd]

obviously i was in dream land hoping for a reply on here by the looks of it .........

[millworm]

It all depends what oil pressure your making, how well the turbo drains back into the engine and what kind of turbo, the older roller bearings will take a bit more pressure than their ball bearing counterparts. First step would be find out what the engine is making or should be making and look up a spec sheet for the turbo your using, then how well it'll drain (like if it's clocked slightly) and go from there. A restrictor bolt is a bit of a last effort if you keep burning oil

[Stuart]

i know they get fitted to ZLET/LEH chargers, but just presumed that's because there made of crap

just because it's new does not mean it's shite. I know that's a bonkers concept.

as millhouse said, many engines make quite a lot of pressure and turbos don't need high pressure to keep them happy. It's always been that way but oil pumps tended to be inefficient in the old days so kinda got away with it.
modern oil and better tolerances mean the pressure needs dropping.