Do I need a hardened intermediate shaft for a HV oil pump?

mod5v said

Now on the pumping the pan dry deal. if you are sustaining high rpms long enough to pump the pan dry you need to look at the oil return path because something is restricting the drain back. Adding volume to the oil pan will just delay the time it takes to empty the pan slightly.

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In my one experience, I had not put on the oil pressure guage due to time limits to the next race and did not realize that I was getting over 100 psi cold; too much relief spring pressure. The fix was to go back down to a more reasonable 60 psi cold. It was not a really a return flow restriction but a true oversupply to the head. I might have survived that incident with a couple more qts in the pan but it would have gotten me eventually. Live and learn!