On Mon, Jan 19, 2009 at 8:07 PM, David Marshall
<mailinglist@fastforward.ca> wrote:

> - The oil on K+N filters destroy MAFs and other sensors.
>
> The most restructive part of the system is the silencer for the air box -
> remove this and you will have lots more flow.
......

> I first hand can say that in very dusty conditions - like extended dirt road
> travel - the oil on the K+N becomes saturated with dirt and then MORE dirt
> goes past 'cause it doesn't stick to the oil.  The one reason why a K+N
> filters at all is the fact there is oil on it and the dirt sticks to the oil
> - nothing special about cotton over paper!
>
> A stock filter works just great for most applications - change it every time
.....

> - if you are really
> serious about filtering in duty conditions a prefiltering cyclone works
> really well - all Syncros have this and it is an easy retrofit to the 2WD.

>
> If you do insist on running a K+N cone filter, a set of panyhose over the
> filter goes a long way to help it filter better... seems like a lot of stuff
> to do just to get away from paper.

Thanks David.

I feel a little sheepish, but did not realize that K&N filters used
oil in the filter element. I know that oil fouling the MAF is already
a potential issue with the stock Jetta 2.0 so wouldn't want to
possibly exacerbate that.

I know of two other VanaJetta guys who are using Honda (Model?) air
filter boxes. To my eye, they use larger elements (hard to tell from
these pics)

http://tubaneil.googlepages.com/HondaAirFilterBox2.jpg

than the Caravan V6 box.

http://tubaneil.googlepages.com/Caravanfilterbox2.jpg

Actually I was quite surprised to see just how small the Caravan box
looked compared to the Jetta box.

I removed the silencer when I installed the box so the flow may be "ok".

I have to "Air Care" (emissions testing) my VanaJetta soon (crosses
fingers.....). Hopefully the Caravan air filter/box won't create
trouble in that regard.

Neil.