right oil psi for turbo

woo_sleeper · Post by **woo_sleeper** » Sun May 29, 2005 3:22 pm

any 1 know how much oil psi should i adjust the my oil reg to i have it on 25-35psi but when i hit full throttle i get little splaters of oil in the outlet compressor on the T25 turbo i got

Nubira2.2 · Post by **Nubira2.2** » Sat Jun 10, 2006 5:13 am

does any one knows the answer to this questions ?

DomWoo · Post by **DomWoo** » Sat Jun 10, 2006 4:49 pm

you dont need to adjust the oil pressure.. if your turbo is leaking its most likely a bad seal

Post by **PrecisionBoost** » Sat Jun 10, 2006 11:35 pm

I would agree that is sounds like the turbo needs to be rebuilt.... at 25psi of oil pressure it shouldn't be blowing into the compressor at all.

Zikas · Post by **Zikas** » Sun Jun 11, 2006 12:34 pm

The turbo will take max 65 to 70 PSI
and if ur oil presure is more you need to put an oil decompression valve

Nubira2.2 · Post by **Nubira2.2** » Tue Jun 13, 2006 8:56 pm

Oil pressure of 150 kPa (20 lbf/in2) must show at the oil inlet within 3 - 4 seconds of engine firing to prevent damage to turbocharger bearing system. A flexible supply pipe is recommended. ie, 1.5bar of oil pressure within seconds, or else the turbo bearing gets it!

The minimum oil pressure when the engine is on load must be 210 kPa (30 lbf/in2). Maximum permissible operating pressure is 400 kPa (58 lbf/in2) although 600 kPa (88 lbf/in2) is permitted during cold start up. Under idling conditions pressure should not fall below 70 kPa (10 lbf/in2). Under load, we want 2-4 bar hot oil pressure. Cold start can show up to 6 bar. Idle below 1 bar could be dodgy!

Recommended oil flows for the turbochargers are 3 litre/min at idle and 3.5 - 4.5 litre/min above maximum torque speed.

Some I found