News about my Engine problems

[bobcowan]

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.

You've been lucky. That's not the norm.

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.

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.

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.