Quote:
Originally Posted by Rick Parker
bobcowan
I have use a High Volume & Hgh Pressure pump on my 289 for 24 ears with the same shortblock.
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You've been lucky. That's not the norm.
Quote:
Originally Posted by FWB
I don't think its such a crime using the HV pump on a small block. i always did.
i never lost a motor.
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High volume doesn't seem to be much of an issue. Some pro builders - The Engine Factory and Keith Craft - use a high volume pump in all of their engines. But some pro builders - Mike Forte and Gordon Levy - say never to use them.
After significant research, I think that if you're using external oiling system components - cooler, remote filter - then you should use a HV pump. Otherwise, use a standard high quality pump. My race engine uses a standard pressure/standard volume pump. Maintaining pressure on the race track and the street is not a problem.
BUT... I have NEVER found a good reason to use a high pressure pump.
Quote:
Originally Posted by Frank Messina
It's surprising that the oil pump drive shaft hasn't twisted itself into a pretzel yet. Your worn distributor gear is proof of excessive oil pressure and drag on the pump. |
This is exactly my point. The evidence is right in front of you. You just have to interpret it correctly.