hot oil pressure
11-03-2018, 08:51 PM
#1
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hot oil pressure
would you be comfortable with 14 psi hot oil pressure at 800 in gear idle?
11-03-2018, 10:02 PM
#2
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Join Date: Jan 2007
Location: Murrayville Georgia
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mechanical or electric gauge? the 454 in my jet boat idled at around 700 and had maybe 20 psi and it lived thru hell with me in that boat. 14, if actual is still a little low. what oil, filter etc and is this something new or has it always been low?
11-03-2018, 10:16 PM
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checked with both. new builds by a very good shop. 20w 50 valvoline vr1. hardin thermostatic oil filter mount and 3 x 20 cooler. -12 an lines, wix filter, cant remember number but it holds over a quart. canton pans, melling pumps
Last edited by SABER28; 11-03-2018 at 10:18 PM. Reason: typo
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11-04-2018, 09:34 AM
#7
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its about 70 at 5700 rpm. it will bump up to 20 plus at 1100 rpms. when the oil temp is only 140 the pressure is about 20-25 at 800 rpm idle.
11-04-2018, 11:51 AM
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Sounds fines to me. Like the old rule of thumb 10 pds per every 1k rpm. I'd just ck it all the way through at all rpm levels but sounds like your fine. I have a built 421 in a muscle car with tighter clearances and rpm to high at idle. Yet I can't idle below 1k. What kind of speeds and power you have. I had the old original red 87 years ago. Fun boat.
11-04-2018, 12:37 PM
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they are 557 bbc's based off bulldog 500's. they have about 25 hours on them. 650 hp on dyno. runs 93 on the gps. engines run great but that needle down on the gauge scares me.both engines read exactly the same.
