Oil Restrictor Problems

[Evilimports]

Ok, I might be missing something here but either way I need some help. Same ol story, 100psi at filter housing, but i put not only one but two different restrictors on it and they'll only drop it by 10psi for a reading of 80psi. The smaller restrictor is .035 and the other one is .075. The turbo is an H1C and im trying to hit 50psi so what am I doing wrong. Thanks

 

[donniekak]

Just to get this out there. Are you measuring the pressure, after the restrictor?

 

[JusMX141]

The .075" restrictor should be what you want to use. You're not only restricting pressure but also cutting the volume down by almost 1/3 over an open -4AN line (.250").

The .035" is for ball-bearing turbo use only and will guarantee the demise of your journal bearing turbo if it sees more than 10psi.

 

[Evilimports]

So is there a way to properly and accurately measure the pressure that the turbo is reciving? Yes I have the oil pressure gauge hooked to the feedline after the restrictor.