I understand the need for air. The part I don't get is why the open-air
filter
makes more horse power than the 'induction' type stock filter. Air
comes in
through the intake at the grille, up the tube and into the filter. I
assume
if you're going faster, more air gets in (more force?). If you have an
open-air filter, how is there more force of air going into the filter?
I understand a
ram air - more force and more air. The open-air filter just seems like
more air
with a lot less force.
Scott Vieth wrote:
>
> Mat:
>
> > OK guys. I'm a Computer Engineer so I'm not up on this mechie stuff.
> > Why
> > does an open-air filter give better flow than a 'regular' closed one? I
> > understand that the filter is completely open, but isn't the increase in
> > horsepower due to the *force* of air into the engine?
> >
> > Like I said, I'm sure there's a perfectly good explanation for this.
>
> Here's a pretty simple analogy:
>
> 1. Put your hand over your mouth so that you're covering most of the opening.
> Run full-blast for a hundred yards. How do you feel? How fast did you run?
>
> 2. Now take your hand away from your mouth. Run a hundred yards. How fast
> did you run this time?
>
> 3. Have someone hook-up a hairdryer (but set it for cool air only) to your
> mouth and plug it in so that it forces air into your lungs. Now run the 100
> yards. How fast did you run this time?
>
> The first instance is your truck with the stock airbox. The restriction of the
> air filter and stock airbox keep the truck from getting as much air as it
> should.
>
> The second instance is a truck with a freer-flowing filter, like the K&N. It's
> easier to drive fast when the truck can ingest more air.
>
> The last instance is a supercharger or turbo. If you can *ram* the air into
> your truck's intake, the engine will perform that much better.
>
> How's that for a simple example? :^)
>
> =Scott Vieth http://www.msn.fullfeed.com/~scottv
> '68 Camaro RS, 327/PG
> '97 Dakota Sport 4x4 Club Cab, Magnum V8/5-spd, Gibson cat-back, FIPK-clone
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