Im hoping to make about 480-500whp on my set up. Im not sure if the stock oil flow would be sufficient enough or the bearing etc. Should this be an issue to worry about, or will a factory oil pump be good enough?

 

oil pressure and oil flow are obviously both important.

pressure keeps the metal from contacting other metal.

flow will help keep temps down.

You will want to have about 10psi oil pressure at idle (ideal hot pressure). As the RPM goes up, you want the pressure to raise 10psi per 1000 rpm for daily driving. You want it to go up a little more (about 12 psi per 1000 rpm) for racing.

How your bearing clearances were set during the engine build is critical to know. Race motors utilize a groove on their bearings that help prioritize oiling to the mains and rods. This also determines what viscosity will be needed. Too thick of an oil will keep pressure up, but restrict flow. Too thin of oil will have good flow and keep temps low, but pressure will be low and you will have major wear problems.

I have a really cool setup on my car. Its a stock oil pump that had its internal regulator blocked off. The internals of the pump were coated by Swain Tech. The exact amounts of coating brought the clearance specs into VERY tight tolerances. This raises the pump capability, AND eliminates cavitation. Cavitation is air bubbles that are injected to the oil stream caused by poor tolerances between the pump housing and impeller.

So with tight tolerances and no internal regulator, the pressure had to be controlled externally. Peterson makes a Pressure Relief Valve for this very purpose. Simply use the block off adpter from the oil filter relocation kit to run AN-10 hose to the PRV. Now you can adjust the oil pressure as needed. Keepan eye on those pressures. It will also tell you when your oil is broken down too much (good pressure at oil change and bad pressure after a few thousand miles).

Hope this helps.