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Whats a good idling hot oil pressure?
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Author:  markjs [ Thu Mar 31, 2005 10:09 am ]
Post subject:  Whats a good idling hot oil pressure?

I just got my oil gauge rigged and I don't know what numbers are dangerous. I specifically need to know the average and lowest tolerable pressures at full warm on a low idle. Thanks in adavance

Author:  ole_blue [ Thu Mar 31, 2005 10:13 am ]
Post subject: 

My 225 slant reads 50 steady.

Author:  Super6 [ Thu Mar 31, 2005 10:51 am ]
Post subject: 

IMO, lowest tolerable at hot idle: 5 psi

General rule of thumb, you want 10 psi oil pressure for every 1000 rpm; 10 psi for 1000 rpm, 20 psi for 2000 rpm, etc.

My slant runs about 35 psi oil pressure at hot idle, 52 psi everywhere off-idle--that is on a fresh rebuild with approx 1500 miles though.

-S/6

Author:  Eric W [ Thu Mar 31, 2005 10:53 am ]
Post subject: 

Mine is 50psi at idle, cold. Goes down to 25psi warmed up. Is 50psi at all driving speeds warmed up.

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