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Author Topic: High PSI  (Read 13716 times)

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GTRS Fiero

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High PSI
« on: October 04, 2020, 07:20:38 am »
When I first start my Fiero, the oil pressure shows 80 PSI, at idle.  After driving for an 20 minutes or so, the pressure drops to about 60 PSI.  Actually, the pressure changes somewhat with RPM, after the engine is warm.  I've been tempted to replace the OPS, again, but not sure that's the issue.
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Roger

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Re: High PSI
« Reply #1 on: October 10, 2020, 05:50:39 pm »
Not a problem. ALL motors drop oil pressure after the oil heats up. 60PSI at idle is very good and variations of pressure are normal under varying engine RPM's.
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scottb

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Re: High PSI
« Reply #2 on: October 10, 2020, 06:24:19 pm »
I was always taught 10psi for every 1000 rpm
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GTRS Fiero

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Re: High PSI
« Reply #3 on: October 10, 2020, 06:55:48 pm »
Me, too, but I have a 350 that is only supposed to be sbout 30PSI, or 5 PSI at idle.  Seems low, to me.
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