Turbo oil flow restricter???

[stewardc]

I understand you need to restrict the flow of oil to a turbo (Why, I do not know)?? Where is this flow restrictor and how big is it?
PS: I have a Garett T3 on an AAZ.

[jtanguay]

if there was no restriction, your turbo would leech all the oil pressure from the system.  another reason why oil drainage is crucial, since the turbo doesn't have full pressure.

[stewardc]

But where is this restrictor and how big is the passage?

[stewardc]

Anyone

[jtanguay]

hmmm i dont know where it would be, but it's definitely not on the turbo judging from what i've seen on my T3 of course...

[Justin]

if your turbo doesnt have one then go to mcmaster car and you can order brass ones that are 1/8, 1/4 and I think 3/8" NPT to go inline with your oil supply line, look up hydrallic flow control i think that the largest they have is . 055 and .062, I just ordered some last night

[jtanguay]

i'm considering using something like that for my bypass oil filtration system...  i don't want it to leech all my oil pressure, especially when driving nice and hard... which will be 50% of the time...  :twisted:

[andy2]

The restriction your refering to is the oil supply fitting that connects the oil line to the turbo.The fittings ID is sized to allow a calculated oil flow through the turbo.I've compared fittings from a T3 to a ko3 and they have the same ID's.

[foxracer1]

So whats the consensus? What size is good? I'm putting a VNT on my 1.6 and will be making an oil feed line from scratch. Also what size line? About 3 or 4 AN. With a 10 AN drain.

[jimfoo]

I think the small hole on your center section is the restrictor. I'd get a drain line at least the size of the larger hole.