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VR6 Turbo Low Oil Pressure

1K views 5 replies 2 participants last post by  garryt 
#1 ·
Just finished a turbo build and I'm seeing low oil pressure. I'm running a Defi oil pressure gauge and using a 42 draft relocation block for sensor.
At cold start it's seeing 2 bar. As it's warming up it goes down to 1 bar. At 90c (195f) im getting 0.2-0.5 bar at idle and 2 bar on the highway at 2500-3k rpms.
I've gotten the oil pressure warning (beeping/flashing) at 2200 rpms and the gauge is showing around 1.4 bar.

Any thoughts on what is going on? The fact that the gauge is matching the light on the dash is telling me the readings are correct. I think there's only 60k on the motor and highly doubt it's the oil pump as I had no issues prior to turbo.

Could it do with the long oil feed line going from the oil filter housing to the turbo?
 
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