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Old 11-19-2008, 01:26 AM   #1
combustion
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oil pressure within spec?

up untill the point i installed my 454, i never really looked at my oil pressure guage.it never drops down below 1/4 of the way down. here is what my guage indicates.

fully warm @ idle 650-700 rpms




should i be worried?

other info..

when its cold it pegs all the way to the h because the viscosity of the oil is thicker.

also when im reved to about 1500 rpm's (FULLY WARM) it goes about 3/4 up closer to the H. which is good. anything past 1500 it pegs the H (FULLY WARM). <-- this is normal right?

so in a nutshell, should i be worries about my idle oil pressure? is it too low at idle?
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If it`s 3.73 ratio you will spint the wheel 100 times to the driveshaft`s 373 times.Or,if you`re lazy,you could just spin the wheel once and the driveshaft will spin 3.73 times.Or, 3 and 3/4 turns.And if you`re real lazy,I can sell you a tab for whatever ratio you want.
Or,you could read all the suggestions and try those.It`s been well explained,I think,already.
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Old 11-19-2008, 01:38 AM   #2
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Re: oil pressure within spec?

i would recommend a manual pressure test with a known good gauge just to ease your worries.
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Old 11-19-2008, 01:39 AM   #3
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Re: oil pressure within spec?

Mine used to run around the 1/4 mark, warmed up at idle... I would probably not worry too much about it. I believe most of the factory gauges were rated for 60psi so that would suggest you're getting 60 or more within operating range which sounds good to me. I ended up replacing the factory gauge with an aftermarket so I could read a dial with numbers on it.
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Old 11-19-2008, 06:54 AM   #4
Longhorn Man
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Re: oil pressure within spec?

Quote:
I believe most of the factory gauges were rated for 60psi so that would suggest you're getting 60 or more within operating range which sounds good to me.
That would indicate 15-ish PSI
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Old 11-19-2008, 07:01 AM   #5
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Re: oil pressure within spec?

The guideline is 10 pounds of pressure per 1000 rpm. You look plenty safe to me. Is the valvetrain quiet at idle ?
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Old 11-19-2008, 08:46 AM   #6
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Re: oil pressure within spec?

x2.......10psi per 1000 rpms avg. at normal engine temp.
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Old 11-19-2008, 10:30 AM   #7
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Re: oil pressure within spec?

Looks normal to me, as long as the pressure starts to come up with rpm increase.
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Old 11-19-2008, 10:40 AM   #8
67ChevyRedneck
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Re: oil pressure within spec?

My 67 reads pretty low at idle, around 17-18 psi, but is more around 40-50 psi while cruising.
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