Here's another tip for saving your engine. Accusump. I know after years of being on the river and beating the crap out of my stuff this was one of the things I had to have after building a new engine. I can't remember how many times I was making a pass and looking at my oil pressure gauge drop at the end of the pass. Basicly it is an oil resevoir that opperates when you have a pressure loss in the oiling system. There are two ways to run this a manual system and an electronic system. The electronic one has a pressure switch that when the oil pressure drops below 25 psi it will actuate a soleniod thus restoring oil pressure. The one I have holds three quarts. To read more check out canton racings site.

Brant

Yes it works against the engine oil pressure. Positive pressure fills it, Negative discharges it.

Brant

no disrespect,but, that is a band aid for a different problem. probably an oil pan issue causing your oil pressure drop

I agree, but how much value does it offer as a pre-lube device for the initial start of the engine when it is cold?  I.E. close ball valve while engine oil pressure is say 50psi or so. Then before starting a cold engine release the pressure and 3qts of oil back through the system then crank over with valve shut (this is assuming the system has no leaks) avoiding a "dry start". I have ran this through my head but would it offer much benefit for the cost/hassle of the system?