At 05:04 PM 3/25/2002 -0800, Susan and Mark Miller wrote:
> > There is controversy over K&N air filters. I like mine, but I have read
> > reviews that they are not good for the engine, and regular replacement of
> > paper filters is a better choice. I don't know if that is for engine
> > longevity or power. My experience with K&N is that it allows more air
> thru.
> > The mixture is richened by the computer because there is more air, so
> you get
> > more power. I guess you have to manually make a mixture change to
> carbureted
> > engines. So the K&N gives you more power, but uses more gas to get that
> > power.
>
>What I have read about the K & N's are that they allow quite a bit more
>grit to
>enter the engine. More airflow, but worse engine wear. YMMV.
>
>Mark Miller
I am a firm believer in K & N.
In 1988 I bought a new 5.0L Mustang, K & N filter added at 8K miles. Drove
it 6 yrs and 131K miles. In 1992 I bought a new Ford F-150 w 302. Added a
K & N @ 3K miles. Drove it for over 9 yrs and 209K miles. No problems
with either one ever letting any dirt past. And I did check the intake
tubes every time I cleaned them. Never in dirt/grit in the tubes. Both
still ran well, didnt use any oil and had good compression. I still see
the truck a couple times per week and it appears to be running well.
I sold the F-150 in November and bought and F-350 with the 7.3L turbo
diesel. But a K & N in @ 2000 miles. Checked it this weekend. No dirt in
the tube. Both trucks and the Mustang used the flat panel type.
Do I believe they make any more power vs a paper filter? Maybe a little
seat-of-the-pants feel in the Mustang with it's higher rpms. In the trucks
they don't have any noticeable increase. The reason is
economic. The paper filter for my F-350 costs over $20. I paid $39 for
the K & N. Two cleanings and it's paid for.
BTW, I also run a round one on my drag car. No problems with it either.
Later,
David Cole
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