K&N filters

[Maw__Jim___Jake]

Are the K&N air filters worth it?
Tanks

[jfkmk]

timmac wrote:


Lab test are that just lab test, in the real world it does not work like that..



Ever wonder how a outboard boat motor can last 30 years without a air filter, there is even some antique ones still running good after all these years without a air filter, someone needs to call Mercury marine and show them this lab test, maybe they will start putting paper filters on outboards.

:R

Lab tests are crucial to emulate real world scenarios. If they didn't reflect reality they wouldn't be required for a lot of products.

As far as boats go, did you really think about that statement before posting it? Have you seen too much dusty water?

[pnichols]

timmac wrote:
Ever wonder how a outboard boat motor can last 30 years without a air filter,

Maybe it has something to do with the fact that there is a lot less dust over water surfaces than around road surfaces on which dust can settle and then be constantly stirred up by wheels rolling along on them. 😉

BTW, on our 4X4 pickup which I take offroad in very dusty conditions, I use a K&N filter with K&N's optional high-$$ fine dust filter cover for extra engine protection.

[timmac]

RambleOnNW wrote:


This chart shows for example that the AC Delco filter passes 0.4 grams of dirt and takes 60 minutes of testing until it is clogged. The K&N filter passes 7.0 grams of dirt and takes 24 minutes until it is clogged.

Lab test are that just lab test, in the real world it does not work like that..

Every time someone mentions K&N filters all the haters show up and toot their horn, I just wonder why there is not hundreds of thousands of broke motors being reported from using K&N filters ??

Ever wonder how a outboard boat motor can last 30 years without a air filter, there is even some antique ones still running good after all these years without a air filter, someone needs to call Mercury marine and show them this lab test, maybe they will start putting paper filters on outboards.

:R

[RambleOnNW]

This article shows ISO5011 testing of a number of air filters including K&N. The ISO5011 test feeds dirt at a rate of 9.8 grams/minute into a 350CFM airflow and measures the amount of airflow restriction vs time and the amount of dirt captured vs. passed.

This chart shows for example that the AC Delco filter passes 0.4 grams of dirt and takes 60 minutes of testing until it is clogged. The K&N filter passes 7.0 grams of dirt and takes 24 minutes until it is clogged.



This chart shows filtering efficiency:



Read more here.

[timmac]

Desert Captain wrote:

midnightsadie wrote:
desert captain, you been out in the sun to long. IF you follow k&n,s directions you,ll clog up you mass air flow in about 1k miles.

Your post is rude, ignorant and simply false {you must be so proud}. :S

Tens of millions K&N customers have had no problem following their instructions (these are the folks who actually read and follow them), for decades with excellent results. Not sure why you hate K&N so much but then I really don't care. I have been using K&N filters since 1998 with excellent performance, saving hundreds of dollars over the cheap (often Chinese), paper filters.

:R

Desert Captain don't let these folks bother you, I to have ran into a few knowitall's on here but the funny thing is they don't know Jack..

:C

[klutchdust]

Diesel forum I follow had results posted from an independent study done on air filters. K&N wasn't in the top. I used one once that was given to me by my friends racing sponsor. I noticed no positive or

negative results.

[pnichols]

midnightsadie wrote:
put one in my V10 rv and it clogged up the mass air flow sensor.

EXACTLY what happened when I put one (temporarily) on my V10 E450 Class C motorhome. The V10 started missing immediately after I installed it and it didn't stop until I replaced the K&N with a good old paper filter like Ford recommends ... and it's never done it since using paper filters.

.... and I do know all about using expensive K&N oil treated filters - have had one on my 4X4 GMC pickup for at least 15 years. I clean it and re-oil it regularly with K&N's red-colored K&N oil.

Maybe the computer controlled V10 engine is a bit like a high spirited but finicky stallion horse - feed it and care for it just right so you can be wowed by it's performance. 😉

[Ray___June]

Many of our area SCCA racers (me included) used them for years without problems, and we held more track records for our area than almost anyone else. I also used it on my '75 Dodge class 'C' which had over 125000 miles on it when I sold it. Follow the instructions, DON'T over-oil and they work beautifully.

[Home_Skillet]

I love them!!
Helped payed for my rv and dirt bikes.
Lots of dusted diesel engines.

[Desert_Captain]

midnightsadie wrote:
desert captain, you been out in the sun to long. IF you follow k&n,s directions you,ll clog up you mass air flow in about 1k miles.

Your post is rude, ignorant and simply false {you must be so proud}. :S

Tens of millions K&N customers have had no problem following their instructions (these are the folks who actually read and follow them), for decades with excellent results. Not sure why you hate K&N so much but then I really don't care. I have been using K&N filters since 1998 with excellent performance, saving hundreds of dollars over the cheap (often Chinese), paper filters.

:R

[timmac]

I have the Banks ram air intake, its designed to allow more flow and not allowing the mass air sensor to get oil on it, a K&N by itself does nothing, you need a whole new air intake system to get the benefit.

Note the Banks uses a filter same as K&N but there intake has the filter housing sitting lower than mass air sensor.

http://assets.bankspower.com/prod_images/1027/ford_ramair_0607_68L.jpg

[n7bsn]

midnightsadie wrote:
put one in my V10 rv and it clogged up the mass air flow sensor.

That is why they are NOT recommended.

Well, that and they allow larger dust particles into the cylinder.
Which you could expect to be hard on your engine.

[Tachdriver]

midnightsadie wrote:
desert captain, you been out in the sun to long. IF you follow k&n,s directions you,ll clog up you mass air flow in about 1k miles.

I followed the directions to a "tee". Never had problems since 2007.

[midnightsadie]

desert captain, you been out in the sun to long. IF you follow k&n,s directions you,ll clog up you mass air flow in about 1k miles.

[old_guy]

we raced cars for years and used them on our race cars. one thing to know about K&N filters is if you have a race car you tear down the engine several times a year. the MH or family car not so much. you will suck in more dirt with K&N filters than paper ones. I would not use them in my family car unless it were a rental car and or trade in the family car every year.