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Original Message
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RE: full groove bearings/Oil pump/427 |
By John - 06/18/2006 11:25:57 AM; IP 142.177.99.238 |
A high pressure pump only allows the upper oil pressure limit to be higher. A regular high volume oil pump should be sufficient for all but drag racing. I set mine for about 85 psi max. The high volume pump will keep the pressure up a bit at lower rpms and at idle.
Not quite sure about the oil groove in the bearing. I was told it is merely an oil resevoir to help with lubrication should an air bubble come through. It shouldn't hurt oil pressure.
A drop in oil pressure is usually due to worn main bearings, or excessive bearing clearances when doing a rebuild.
Some oil filters are very restrictive. Try one of the high performance filters to get a small (say 5 psi) increase at idle. |
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