K&N filters

[John Larson]

This has been a topic a number of times before.  Last time around we saw the
topic we had a post regarding the area of filter material.  K&N filters
better per square inch (with the proper oiling) but has FAR fewer square
inches of filter area, and the particle size allowed by is somewhat larger.
There is a website somewhere out there from a mining company maintenance guy
that talks about  drastically accelerated wear and decreased overhaul
intervals of heavy mining vehicles after switching the fleet to K&N.  Mega
dollars later, the filtration was changed back to the OE style, whatever
that was.  I think the HP clams made by listers are exaggerated and, for the
most part, totally unverified.  Consesus is they sound more powerful,
though.  John
----- Original Message -----
From: "Nate Stuart" <newt at newtsplace.com>
To: "Ryan Hoitink" <rahoitink at students.wisc.edu>; "John Larson"
<j.d.larson at verizon.net>; "Swann, Benjamin R. (BSWANN)" <BSWANN at arinc.com>;
<quattro at audifans.com>
Sent: Monday, October 29, 2001 2:15 PM
Subject: Re: K&N filters


> I once recall seeing in an old car rag where a couple of the editors were
> driving cross-country in a rented car and drove through a dust storm. They
> came out on the other end with little to no paint on the front of the car
> and all of the trim/metal/glass was substantially pitted. Seems like a
> rather large scale effect for such small scale particles to me. It may
take
> much much longer in the case that we are talking about, but each grain of
> sand/dust is going to inflict it's damage to whatever component in the
> engine it strikes, and in some cases at a rather high velocity. My 90q had
a
> K&N filter on it when I bought it, and the amount of crud that made it all
> the way into the intake manifold itself was rather disturbing, it was oily
> and clinging to all the surfaces, like you say, trapping some of it. But
if
> that many particles are passing that far down into the intake system then
> some are surely getting into the combustion chambers as well. I cleaned up
> everything I could and replaced the K&N with a new OE paper filter and the
> system was much cleaner when I pulled the engine out for the swap, though
> admittedly it didn't have nearly as long of a life in there as the K&N, so
> who am I to say ;)
>
> BTW I still have the K&N if anybody wants it, free for the taking, no I'm
> not gonna ship it :-)
>
> Later!
> -Nate
> '89 90tq
> www.newtsplace.com
>
>
> > I think that all are completely adequate.  The only reason I like the
K&N
> is
> > because it truly IS reusable.
> >
> > That said, the size of the particles allowed to pass in either situation
> is
> > ridiculously small.  In my opinion, any air filter will be sufficient if
> > properly replaced/cleaned.  The goal of the filter is to keep out
objects
> > that would damage the engine, and I can't see ANY particle that would
pass
> > through these filters causing any damage.  Please let me know what
> > intake/engine component could be damaged by something that small.  It's
> not
> > like the air has to pass through a tiny opening like the fuel injectors.
> >
> > -Ryan
>
>
>
>