HV oil pump vs Stock oil pan

Well, discuss the "HP thing" with the factories. They have the money and facilities to test these things and more. This be their finding.
As to a HP engine, that depends on the extent of modifications. As the build gets more extreme, more ancillary parts need upgrading.


So you agree with Uncle Tony, who on his video produced as much evidence as you have about how much horsepower it takes to run an oil pump. It doesn’t take what you think. This has been tested so many times it hurts. On virtually every brand of engine. On a well tuned, scienced out small block Chevy it’s worth about 5 hp at 7,000 rpm. And that was with needle bearing rocker arms. I can tell you that as I said above that you will kill way more than 5 hp with the rockers eating the shafts. And again, your 10 psi at idle will be ZERO at the shafts. Prove me wrong. Hook a gauge up to the end of the shaft and learn for yourself.