Originally Posted by Granitepeak
The original design being a bypass system meant that most of the fluid did not get filtered and went back into the pan. If I switch to a full flow filter there won't be the restriction and therefore I'm pretty sure the oil pressure is going to drop significantly. So the bypass oil filter that has restriction is required so that it can build pressure.
A person redesigned the system and with some machining and tapping into the oil pump created a full flow system. ...
If the conversion was really to a true full-flow system, small holes in the filter are no longer appropriate, because they would severely limit flow to bearings, etc. If the conversion was merely to allow using a normal full-flow filter in a system that's still essentially partial-flow, then the holes must be small to prevent bypassing too much flow, unless there's another restriction in flow to the filter. We need a circuit diagram of the original versus modified oiling system.
The original design being a bypass system meant that most of the fluid did not get filtered and went back into the pan. If I switch to a full flow filter there won't be the restriction and therefore I'm pretty sure the oil pressure is going to drop significantly. So the bypass oil filter that has restriction is required so that it can build pressure.
A person redesigned the system and with some machining and tapping into the oil pump created a full flow system. ...
If the conversion was really to a true full-flow system, small holes in the filter are no longer appropriate, because they would severely limit flow to bearings, etc. If the conversion was merely to allow using a normal full-flow filter in a system that's still essentially partial-flow, then the holes must be small to prevent bypassing too much flow, unless there's another restriction in flow to the filter. We need a circuit diagram of the original versus modified oiling system.