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> Oil Pressure question
hars914
post Apr 18 2004, 04:12 PM
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I just installed a front oil cooler using -12 lines from engine to cooler.I test drove the car Sunday for about 5 miles. I noticed my oil pressure at speed was around 50 psi
and at idle around 20 psi. The oil temp while driving was about 170 or so.
Before I installed the cooler my presure was around 20-25 psi at about 2000 rpm
which I think is normal. The motor is new with around 1100 miles and does have a HD oil pump.I also use 20W-50 oil. Is this high pressure a problem or not???
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Dave_Darling
post Apr 18 2004, 08:25 PM
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The pressures sound fine to me. As a rule of thumb, you want at least 10 PSI per 1000 RPM (up until the pressure relief valve opens). Below that is a problem, above that is not--within reason. Sounds within reason to me, though others with more engine internal experience should be believed over my opinion.

There is very little if any correllation between CHT and oil temp. CHT is primarily load-related, while oil temp is primarily RPM-related.

--DD
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