N54 Crankcase Ventilation questions

I see a lot of contradicting info on the n54 pcv system online, i feel like it’s a simple solution, but nobody is doing this that i can find.. I want to vent the crankcase to atmosphere.

The factory pcv system is internal to the valve cover and i see people make this really complicated, tell me if my simple thinking is correct here.

I want to vent my crankcase to atmosphere, essentially I just plan on plugging the ports in the head that connect to the intake ports(just a weird aspect of the stock system), swapping to an aftermarket valve cover with no pcv system and just 3 breather ports, and running all 3 of these ports with no check valves or anything to a vent to atmosphere catch can.

This is the simplest most efficient way to vent crankcase pressure to atmosphere right? Everything i’ve read seems to try to make this really complicated and claim you will damage the engine venting crankcase to atmosphere, i feel like that’s false. Anybody have any opinions on this ?

Asking people in another forum this is the first answer i got -

“ Problem is the crankcase systems on bmws since the late 90s went to Teflon crankshaft shaft seals with no wire ring.. If you just vent the system to the atmosphere, oil pours out the seals and sucks air and dirt. Thats why it's complicated and is regulated with different systems valves.”

Wouldn’t venting crankcase to atmosphere prevent issues like this? i just feel like this platform is finicky with everything lol

A PCV system is just one part of the factory emissions system which is why it must vent back into the intake. Depending on your location, venting to atmosphere will render your car illegal. Assuming that you're in a part of the world where you're not regulated then venting to atmosphere via a catch can is quite typical. You'd need a reasonable sized catch can as it will over time collect oil. The other issue is to do with the design of the valve cover - you'll need something that is baffled so you don't end up with excessive oil vapour entering and filling the catch can. The catch can will also require a filter to atmopshere. Check out the universal options offered by the likes of Radium engineering.

As Andre said, but if you need to plumb into the intake for emissions, there are catch tank designs that allow this.