Originally Posted by Megan370z

I hate doing this and since my hydraulic course was taken years ago, I will try to make it short.

there is in fact an hydraulic pressure loss/gain in any hydraulic system
the pump & regulator/restrictor has to work together to maintain a certain level of pressure it was set. If you add an oil cooler for example you are adding restriction to the system which will raise the pressure and other adverse effect.

The pump isn't making the pressure but pumping the oil, pressure is made by the effect of restriction.
so to answer the guy asking if the stock oil pump is enough,,, I would say yes but the restrictor could potentially be adjusted if it was possible.


one last thing; this is why there was more pressure showing on the pressure gauge on my old 350z after adding an oil cooler higher than it use to. but its not enough to greatly affect the engine.