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How much is too much oil pressure? I heard that if you have high oil pressure to your turbo, ball bearing or standard, you should use a restrictor because if not the turbo wont last long. Is this true?
 

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yes over pressurizing a ball bearing or journal bearing turbo will cause premature failure if you want good info on bearing oiling and design you should check any mechanical design book, this a ton of info on it
 

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yes over pressurizing a ball bearing or journal bearing turbo will cause premature failure if you want good info on bearing oiling and design you should check any mechanical design book, this a ton of info on it
Good job not answering his question :rolleyes:

Garrett says for ball bearing turbos to use and oil restrictor if oil pressure is over 60psi (ours is).

You almost never need a restrictor with journal bearings.
 
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