My Observation of K&N filters

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that's kind of interesting how K&N themselves tell you to add more oil anyways if you live in a dusty region.



And you interpret "Heavy Dust Conditions" in the context of off-road and racing environments as living in a dusty region?

Ding ding ding!! We have another new member in the K&N
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club.
 
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Those filter wraps are for OFFROAD use. The wrap will help with this because unlike a paper filter filter sitting inside a nice comfy factory airbox we are talking about a cone type filter sitting out all by itself, not surrounded by an airbox.
 
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I feel that if there were some merits to this technology one would see more of it in an OEM context, where paper seems to be predominant.




Paper is cheaper, that's why.
 
I was around when mesh oiled filters and oil bath filters were all that could be had. Then around 1957 they came out with paper filters. Filtering effciency of the air going into engines went up into the high 90 percent range. As one
auto engineer told me wear on rings and bearings by airborn
particals was on it's way out. All that remained was crankcase breather entry, along came PCV systems and that was gone. Now let me ask you, these wis bang air filters that last forever, we know they pass dirt, which is cheaper
a couple of dollar air filter or a new set of piston rings?
I'll take the paper anytime.
 
I will be changing the oil on both cars this weekend...I will also pull the intake tubes off and check the TB/intake to see if my K&N (installed as received, not oiled by me) is contributing to buildup...
last time i checked, both cars had buildup...but i can't say if it was from before or after i installed the K&N's.
 
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I will be changing the oil on both cars this weekend...I will also pull the intake tubes off and check the TB/intake to see if my K&N (installed as received, not oiled by me) is contributing to buildup...
last time i checked, both cars had buildup...but i can't say if it was from before or after i installed the K&N's.





When I ran a K&N on my 99 CTD, the turbo blades were black with dirt and the entire air system was dirty...I hate to think about how plugged my intercooler was from running the K&N...

As I stated before, I thought K&N had recently changed to a multi-layer media???

steved
 
I understand that the K&Ns have improved some compared to past models, but how much? I always used stock filters on my turbo cars ('80 Mustang, '95 Eclipse), I never noticed any run problems. I didn't know about K&N back then, I probably would have tried it.
 
I've used a K&N in my Altima for the past year and I haven't noticed any problems at all. It's always seemed peppy and has a decent tone to it. I just put one in my Integra and i'm a bit worried though, because I plan on keeping that car for a long time and i'm just trying to do what's best for it. I might switch back to the paper if my UOA turns out bad.
 
No filter like a high quality oem type filter .K@N sucks big time as an air filter .why are there no K@N filters on anything that matters. For example heavy equipment or over the road trucks ? If ther was an increase in power and mpg and made your engine last longer every semi would run one. How about the cafe for the car manufactures? K@N filters are a dumb consumer item.
 
I've had a K&N panel air filter on my 1986 325es for the last 450,000 miles. Still running strong with 530,000 miles on the original engine.

I also spoke with K&N at SEMA in Las Vegas in November 2006... they did a lot to restore my confidence in K&N and refure the internet forum info.
 
Did K&N tell why they changed their 20HP increase to 20% increase ?
laugh.gif

Because the "REAL WORLD" had a well prepped Class Action Suit pointed right between their eyes thats why
banana.gif

Thats right they couldnt support their claims and therefore changed.It was never there to begin with and the 20% isnt there either......but the scam continues
yawn.gif


SS/LS
 
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I've had a K&N panel air filter on my 1986 325es for the last 450,000 miles. Still running strong with 530,000 miles on the original engine.

I also spoke with K&N at SEMA in Las Vegas in November 2006... they did a lot to restore my confidence in K&N and refure the internet forum info.




i think your firsthand experience helps to support the performance of k&n filters in regards to filtering...i had some first-hand experience as well when i pulled my k&n drop-in filter after a severe dust storm and checked the intake tract to find it clean of any dust--the filter itself was loaded to the point that i could tell before washing due to the weight...

what i did notice was the improved engine response when i put a paper Wix filter in while servicing the k&n, which leads me to associate the dust loading and filter capacity with a loss of air volume while the filter was dirty...absolutely unscientific, but the flow was reduced dramatically, which is an indication of the dust loading in the filter

all in all, i am pleased with the performance of the k&n product in terms of filtering in severe conditions, although i feel that it reached a loaded capacity quite soon that necessitated cleaning...as far as performance or fuel economy gains, incosequential with the drop-in filter--but the fipk kit i demonstrated did seem to produce power gains from mid rpms up into higher rpms, although i felt a noticeable loss in power at tip-in to light throttle at low rpms--again, absolutely unscientific conclusions, but i trust my observations enough to feel ok about the conclusions
smile.gif
 
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Did K&N tell why they changed their 20HP increase to 20% increase ?
laugh.gif

Because the "REAL WORLD" had a well prepped Class Action Suit pointed right between their eyes thats why
banana.gif

Thats right they couldnt support their claims and therefore changed.It was never there to begin with and the 20% isnt there either......but the scam continues
yawn.gif


SS/LS



20%????!!!!!
That means the GTO would see a 120 RWHP gain from just putting on a KN filter???!!! Wait till the guys hear about this!
 
I bought a K+N for my car years ago and now have my doubts. But in practice, I have no problems - there is never a hint of oil or dirt in the intake or MAF. Because I drive in fairly dust free ares, it is OK.
I never recommend them for the street, because they DO allow more dirt than paper filters. Yet I use mine because it's underhood location and my ambient conditions allow it.
 
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Funny how the
stooges.gif
feel compelled to continually self-identify themselves.

That's kind of interesting how K&N themselves tell you to add more oil anyways if you live in a dusty region.



You pic says it nicely . . . but I have a 'different' version that says "almost" the same thing but was an earlier version than yours. It says . .

"Caution: Extreme fine dust, agriculture or off-road use, will pull the oil from the element. Frequent re-oiling of the element's clean side may be required".

Now please explain WHY you would EVER want to oil the "clean" side since that, for sure, will end up depositing OIL film on your MAF and contaminate it.

If you want to see what happened to my MAF (and how I 'fixed' it), check out my web pages, MENU#4a.
 
I bet 90% of the folks utilizing KN filter over oil them. I've seen many do it. The instructions clearly say to lightly oil and let the oil disperse into the cotton....so I always "dotted" the oil about every two inches leaving a two inch gap of clean cotton and no oil...then I'd sit it on the work bench for all night....next morning that entire filter was red with oil....So many oil all the filter until it is red right off the bat....that is over oiling and causes many of the issues in these post.
 
I've oiled the #@$%! outta my K&N clone filter - then let it drip dry overnight and never had ANY oil get past my filter.

It was always clean upstream in the intake too. Maybe a small 2.0L 4cyl helps - flows less air.
 
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