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Old 07-11-2006, 07:06 PM   #1 (permalink)
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oil pressure?

I'm probably being paranoid but I don't want to replace another motor so its ok this time
Newly rebuilt 383, has about 600 miles give or take.
When the motor is warmed up to about 180*, the oil pressure when stoped at a stop light is at 13-15, which is about at 600-700rpms. At 2000rpms the oil pressure is at 40 and at 2500rpms it is at 45. That seems right, but I just don't remember it getting down to 12 or 13 when ideling before?
What generally is acceptable and if 12-15 is fine, than what is low oil pressure, 0?
Thanks
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Old 07-11-2006, 07:11 PM   #2 (permalink)
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Quote:
Originally Posted by TxCruzr
I'm probably being paranoid but I don't want to replace another motor so its ok this time
Newly rebuilt 383, has about 600 miles give or take.
When the motor is warmed up to about 180*, the oil pressure when stoped at a stop light is at 13-15, which is about at 600-700rpms. At 2000rpms the oil pressure is at 40 and at 2500rpms it is at 45. That seems right, but I just don't remember it getting down to 12 or 13 when ideling before?
What generally is acceptable and if 12-15 is fine, than what is low oil pressure, 0?
Thanks
i would imagine bad oil pressure would be when you cruising at like 2700 rpms doin about 60 and your o/p is 10. I had the same problem when i built my last 383, i just put a super high volume oil pump back in it, it was running with the stock one for a while and would do the same thing. At crawling speed i beleive i even had it ass low as 5 psi one time.
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Old 07-11-2006, 08:09 PM   #3 (permalink)
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I always heard 10 lbs per 1000 RPM's so 10 at 1000, 20 at 2000 and so on.
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Old 07-11-2006, 09:09 PM   #4 (permalink)
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Oil pressure with a stock pump should run somewhere in the range you are having.
What you are describing above is normal.
A lot of people will tell you to run a high volume oil pump, but on a stock engine that doesn't see redline duty on a regular basis, a stock oil pump is adequate to keep your motor oiled.
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Old 07-11-2006, 09:25 PM   #5 (permalink)
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I thought it was ok, but I didn't want to burn this motor up. I like it too much
I've always read that the high volume oil pumps could run dry when crawling at the steep angles and low rpms that we do.
Thanks for the info.
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Old 07-11-2006, 09:36 PM   #6 (permalink)
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Quote:
Originally Posted by redtruck
I always heard 10 lbs per 1000 RPM's so 10 at 1000, 20 at 2000 and so on.
X2
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Old 07-12-2006, 12:53 AM   #7 (permalink)
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Quote:
Originally Posted by TxCruzr
I've always read that the high volume oil pumps could run dry when crawling at the steep angles and low rpms that we do.
That's a myth.
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Old 07-12-2006, 01:42 AM   #8 (permalink)
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the story I heard is the HV oil pumps will suck the pan dry going through the quarter...
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