Anyone Not Using A K&N Filter Should Read!!!

Reply Subscribe

Thread Tools

Search this Thread

Jan 12, 2009 | 09:00 PM

#31

WARG

Thread Starter

Elite HDF Member

Joined: Jan 2006

Posts: 4,357

Likes: 11

From: The Lone Star State

Quote:

Originally Posted by beaureed445

That's what you get for "thinking." Just kidding....

Well, now that I got the K&N I can stop thinking again, until it's time to clean and oil it.

Jan 13, 2009 | 09:47 AM

#32

TedMan

Road Warrior

Joined: Aug 2005

Posts: 1,949

Likes: 288

Replaced mine after reading posts here after only 500 miles. Part of my annual servicing ritual now, but K&N is a quality company that stands behind their product.

Ted

Jan 13, 2009 | 10:46 AM

#33

exodor1

Cruiser

Joined: Aug 2008

Posts: 135

Likes: 0

From: South Jersey

I've had a K&N in my 70 Nova for years. Never had a problem with it falling apart. Bought just the K&N filter and put it in the stock housing. K&N is quality. I don't like to pay what they're asking, but when you get it and use it for years, you realize that it was worth every penny. Especially when you go to the parts store and see how much they get for paper filters nowadays.

Jan 13, 2009 | 11:06 AM

#34

George C

Outstanding HDF Member

Joined: Oct 2005

Posts: 2,035

Likes: 5

From: near Buffalo, NY

Actually, K&N makes a pretty $hitty filter. High flow yes, but with high flow comes low filtration, especially when new or freshly cleaned.
Don't think so?
Hold it up to the sun and you can see right through it. I'm also into diesel performance, and NOBODY will run a K&N with a diesel engine. Having said that, high filtration isn't as critical on a Harley as it is on a turbo diesel, and the K&N seems to work good enough, but it ain't great...
Do NOT clean before you have at least 20-30K miles on it. Only when it's covered with a layer of dust and dirt will it provide decent filtering.

Jan 13, 2009 | 12:07 PM

#35

mopardave

Elite HDF Member

Joined: Sep 2006

Posts: 3,592

Likes: 6

From: Florida

Quote:

Originally Posted by George C

Actually, K&N makes a pretty $hitty filter. High flow yes, but with high flow comes low filtration, especially when new or freshly cleaned.
Don't think so?
Hold it up to the sun and you can see right through it. I'm also into diesel performance, and NOBODY will run a K&N with a diesel engine. Having said that, high filtration isn't as critical on a Harley as it is on a turbo diesel, and the K&N seems to work good enough, but it ain't great...
Do NOT clean before you have at least 20-30K miles on it. Only when it's covered with a layer of dust and dirt will it provide decent filtering.

Hmmmm, now isn't that strange. It's really hard for us dumb people to understand that NOBODY will run a K&N with a diesel engine when SOMEONE is selling them and SOMEONE is buying them. Maybe they are using them to hold them up to the sun to prove how crappy they are!

For an 05 Ram turbo diesel:
http://www.knfilters.com/search/prod...px?Prod=E-0776

For an 05 Chevy turbo diesel:
http://www.knfilters.com/search/prod...x?Prod=33-2135

For an 05 Ford turbo diesel:
http://www.knfilters.com/search/prod...px?Prod=E-0780

Jan 14, 2009 | 09:18 AM

#36

exodor1

Cruiser

Joined: Aug 2008

Posts: 135

Likes: 0

From: South Jersey

I know with paper filters on cars, the standard was to change it after 10K miles. But, if you forgot how many miles it had been since you changed it, you were supposed to hold it up to the sun, and if you could see light through it, it was still good. I believe that if something gets through the tiny passageways in either paper or a K&N filter, it's so small that when it does enter the combustion chamber, it'll be burned up and spit out. I never heard of any mechanic telling someone they got dust in their cylinders and that's why it doesn't run right.

Jan 15, 2009 | 11:06 AM

#37

oiles89

2nd Gear

Joined: Jan 2009

Posts: 6

Likes: 0

if you hold any filter up to a light you should be able to see through it, if it is clean or new...

Jan 15, 2009 | 03:07 PM

#38

George C

Outstanding HDF Member

Joined: Oct 2005

Posts: 2,035

Likes: 5

From: near Buffalo, NY

Quote:

Originally Posted by mopardave

Hmmmm, now isn't that strange. It's really hard for us dumb people to understand that NOBODY will run a K&N with a diesel engine when SOMEONE is selling them and SOMEONE is buying them. Maybe they are using them to hold them up to the sun to prove how crappy they are!

For an 05 Ram turbo diesel:
http://www.knfilters.com/search/prod...px?Prod=E-0776

For an 05 Chevy turbo diesel:
http://www.knfilters.com/search/prod...x?Prod=33-2135

For an 05 Ford turbo diesel:
http://www.knfilters.com/search/prod...px?Prod=E-0780

Nobody runs that junk in an expensive diesel engine.....
In fact, nobody who wants their engines to last run them..
Just check on any diesel performance forum, and not some product search..
So many better choices that actually filter air.
AFE, S&B ect.
They (K&N) are available, and I'm sure that there are a few guys like you who don't know what percentages of micron filtration is acceptable, but if I were you and you seem to know the answers, I would run nothing but K&N.
I don't think it makes a tremendous difference on a Harley because they are pretty archaic, but none the less, K&N filters are not that efficient. There just aren't any other filter companies with Harley applications in the mix. I'm forced to run one in my Wimmer..
Run a K&N through a turbocharged diesel engine with 5000 lbs of rail pressure and incredibly tight tolerances, and you'll see things loosen up.

You guys can bash away, I really don't care one way or the other.
I'm just telling you that K&N isn't a step above when it comes to filtration. It's a step down.

Last edited by George C; Jan 15, 2009 at 03:18 PM.