the turbo is not a T3, user iceracerdude already explain, to control the oil pressure that goes to the turbo you could use what qsiguy had shown or this (the principle is the same)
but maybe is more reliable and is it had a gauge to monitor the pressure of the oil line

 

What is the target oil pressure here?

 

around 40 psi or no more then 40psi ,right? I just asking

 

yup, 40, it's the dynamic oil pressure that kills the seals in the turbo.. I usually make a cheap longer drain line and put it in a bucket to check flow..

 

MORE INFO on your needle valve!

 

You can see the feed needle valve and oil pressure sending unit in the bottom right of this photo. I currently have the feed coming from the filter sandwich plate to a Tee with the pressure gauge sending unit, then to the needle valve, then all the way back to the rear into the turbo. Out of the turbo through a scavenge pump then back up to the sight glass then into the pass. side valve cover.

One thing I am planning to change is to swap the needle valve and pressure sending unit. This way I can monitor the pressure after the needle valve to make sure it doesn't go to high. Right now I can just see the actual pressure coming from the motor which gets up to 70-80 psi at high RPM. I would rather know what it is at the turbo. Changing this should also let me know if the scavenge pump fails as the pressure would shoot up.

 

Found a better pic of the pressure sender/needle valve.

 

cant you just unhook the oil feed line and turn the engine over?

 

That would tell you if you had oil to the turbo but not how much pressure or the flowrate. Too much and you'll blow your seals...nice for a 007 smoke screen but not what I'm looking for.

 

yeah but thats exactly what the guy was wondering. the title of the thread was "how to check if your turbo is getting oil". he will be fine if he just takes the drain off and cranks the engine. as for flow and pressure all you need is a .06 restrictor