Quote:
Originally Posted by theastronaut
That 39 psi, is that hot or cold? It won't hurt anything if it's higher than 10 per 1000 rpm. VW guys try to size the oil pump so that they don't make excessive pressure. When you only have 40-50 hp to start with you don't want a big pump making excessive pressure, it takes power to turn the pum and more power to turn a bigger pump.
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today while driving i paid attention to it more, at idle warm/hot its at about 39.5,40 PSI - 40,41 PSI. I Havnt really seen the PSI go higher than 42 PSI while cruising under 50 mph on the streets.