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Re: 10v air filter upgrades?



the deal on K&N filters: KEEP IT OILED!!!  if you let it dry out, phil is
right, it becomes a chicken wire highway for dirt to explore the inside of
your motor.  what filters are the oil-soaked gauze fibers.  if they dry out,
not only doesn't the dirt stick, but the gauze opens up.  one of the reasons
they work for motorcycles is that with most bikes it's a snap to yank the
filters and reoil.  plus most riders are gearheads and keep a hand on this
stuff.  this is not a good way to go if you are expecting to toss the thing in
and clean and reoil 'when you get around to it'. K&N will give you some
propaganda about how they 'filter better as they get dirty' but A) if this is
true, then i guess it's not doing such a great job when clean, and B) dirty
but still oiled and dried out are two different things.

don't get me wrong, I've had 4 or 5 of these setups on bikes, and they work
great for power and are long lived, but they do require maintenance.  then
again, most older bikes have horrible stock airboxes, so there is alot of gain
to be had, may not be the case with car airboxes (standard YMMV).

about intake placement, don't forget Bernoulli - As the velocity of a fluid
increases, the pressure exerted by that fluid decreases. - so if you stick
your inlet across the flow of air, it will suck.  so to speak.