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Adding a remote filter would not change the volume required as long as it did not create any new leak paths. What it would do is add flow resistance which could potentially reduce the oil pressure to the rest of the engine. I'd measure the oil pressure at the end of the line meaning at the last thing to get oiled.

If the pressure is too low you would need a higher pressure pump or shim the relief valve. If the pump does not have enough volume to build pressure to start with then you would also need a higher volume pump. As long as you use a good size line and avoid a bunch of 90 degree bends likely be fine, if you were good before.
 

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It will not which is why I stated "If the pump does not have enough volume to build pressure to start with then you would also need a higher volume pump". If all the volume goes into the motor before you hit the bypass (relief) pressure then you cannot raise the max pump pressure can you?

Stated another way if you added enough of a restriction the existing pump's pressure will increase up to the point it goes into bypass. If not it may be too small to start with or if you are say at 50psi at the end of the line the pump maybe just fine for the application.
 

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When I said pressure to low I was speaking at the end of the line after all the bearings and leaks. Sorry if that was not clear. If you add more restriction upstream you could put the pump into bypass and still not have enough pressure at the end of the line.

In that case raising the bypass would help. If it did not hit bypass then you need more volume to get the pressure needed. If you have enough volume you should be in the first case so would be too low volume to begin with and now a marginal case was just now made worse.

I understand your pet peeve. There are
two things; pump volume and bypass relief pressure. People talk about high volume pump and high pressure pump like is all the same and they are two different things.
 
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