If
Oxygen is 'heavier' (more dense) than Nitrogen;
Then
All the centrifugal pre-cleaners are going to very-very slightly increase the amount of nitrogen entering ICEs.
if you 'take' the outside (centrifuged) air in; you don't get a decrease in the amount of dust to be filtered out.
Hmmm...
Back to magnets:
At a guess a strong tube magnet, magnetized through it's length seems to have the best chance of turning Nitrogen (repelled) away at the door, so to speak, thx the the strongest field strength at the entrance.
https://supermagnetman.com/blogs/new...-field-profile
Perhaps a bar magnet down the centre axis (or on the axis, but in front of tube would help.
Something like this: ---===
ie: N2 will try enter in the centre, which would be physically blocked by such...
It would also increase field strength if N to S.
At the end of the day I have NO idea if this would make a measurable difference and be worth the cost and weight.
But your 'Super Magneto Ram Intake' will help to pull you down the road when you're tailgating trucks!
