Thread: Oil Pressure?
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Dave at Pelican Parts Dave at Pelican Parts is offline
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1 bar is about 14.8 PSI.

Bruce Anderson's rule of thumb (for 911s in particular) is that you should start to worry when you have less than 10 PSI per 1000 RPMs on a warmed-up engine.

Oil pressure should go up more or less linearly with RPM until you open up the pressure control valve (or is it the pressure relief valve?). At that point, the rise in pressure will stop. Cold pressures will be higher than warm pressures since cold oil is thicker than warm.

So, unless you mean "really wound up" when you say "under load", the bottom end of the motor is probably in reasonable shape.

--DD
Old 08-17-1998, 09:24 AM
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