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http://www.edmunds.com/edweb/editorial/HowTo/aircleaner.html
up there promoting the use of K&N air filters?
I was thinking of replacing my stock filter element for a K&N, keeping the current stock air box, and modifying my current air intake piping to grab some cooler air from the outside using a funnel behind the grill and hose clamped onto the end of the existing air intake pipe. I'm still debating whether or not this is going to be a smart idea.
Any theories on what may happen?
www.tornadoair.com
Steve
Edmunds.com Town Hall co-host
Vans and Aftermarket & Accessories conferences
It would be interesting to see some independent testing results of these types of filters in a typical automotive setting.
Steve_
Host
Vans and Aftermarket & Accessories Message Boards
Dear customer,
It is a fake. Note the date, 1995 and still going around. How do I
know you ask? We DO NOT make filters for mining or construction equipment.
If he used a small Honda filter on a turbo charged V12, no wonder he had
problems!!! Here is the truth to it.
Our filters are tested by an outside, independent laboratory. They
have been proven to stop at least 99% of particles on a SAE dust test. This
test uses particles in the 0 - 5 micron range and goes up to 20 microns.
For comparison, a paper filter also stops 99% on the same test and the OEM
minimum standard is 96%. Foam is generally the worst media with a typical
efficiency rating of 75 - 85%. To get higher ratings, the foam must be more
dense and therefore way more restrictive. The "tack" characteristic of a K&N
allows for increase filtration without loss of flow as well.
The testing procedure used is SAE J-726 using ISO Coarse Test Dust.
This test is the standard of the air filter industry. The test procedure
consists of flowing air through the filter at a constant rate (airflow rate
is determined by the application) while feeding test dust into the air
stream at a rate of 1 gram per cubic meter of air.
As the filter loads with dust the pressure drop across the filter is
increased to maintain the prescribed airflow rate. The test is continued
until the pressure drop increases 10" H2O above the initial restriction of
the clean element (in this case .78" to 10.78" H2O). At this point the test
is terminated. The dirty filter element is then weighed. This weight is
compared to the clean element weight to determine the total Dust Capacity.
The amount of dust retained by the filter is divided by the total amount of
dust fed during the test to determine the Cumulative Efficiency.
The K&N filter achieved the following results:
Dust Capacity: 305 grams
Cumulative Efficiency: 99.05 %
We got started over 30 years ago making filters for motorcycles and off
road racers. The filters did so well that these guys wanted them for their
cars and trucks. We started making filters for these applications and here
we are today. If they did not work, we would not still be here and growing
every year.
We now make filters for Chrysler/Mopar, Ford Motorsports, Edelbrock,
Rotax Engines, and Harley Davidson. We come as original equipment on the
2000 Ford Mustang Cobra-R. We even made the filters used in the Apache
helicopters used in Desert Storm and the US Marine Corps new Osprey
tilt-rotor aircraft. If they work in these conditions they will work for
you. This leads me to the Ford post. The dealership may not void the
warranty per Federal laws. The Moss-Magnuson Warranty Act of the Fair Trade
Commission states that if a part is not covered under warranty, the consumer
may use any brand they choose to. Air filters are not covered under the
warranty so you are free to use any brand you choose. The real clincher is
the fact that Ford carries and sells a line of our filters at the
dealerships. We make the filters for Ford Motorsports and they even took
out a 1 page "ad" in our catalog. In fact, we are original equipment on the
2000 Mustang Cobra-R. I find it highly unlikely Ford would endorse a
product that causes problems with their vehicles. In fact, Honda and Toyota
only recommend K&N filters when using aftermarket high flow filters as K&N
is the only brand of filter the oil does NOT come off of.
You may post any or all of this if you like, in fact, it would be
appreciated. I would be interested in seeing the responses. Bottom line,
the internet is opinions not facts. Don't take all you read as accurate.
Thanks for writing, Rick
> ----------
The K&N has a couple of problems first it costs 4 times a normal FRAM or Puralator. Second when you clean it, it is NEVER as clean as the first time you bought it. By the third time you try and clean it you would be better off with a conventional filter.
I have tried them all. When I go to the drags I only use one filter WIK. Awsome but does not last long because it catches everything and needs replacing after about 5k.
On my wifes car and daily driver I use FRAM.
But HEY to each his own
Like I said before on my normal cars I stick witha NEW, CLEAN FRAM every 15k miles.
breath cleanly
Thanks,
Jeff
Also can K&N hurt the engine at all if no modifications are made to the exhaust system other than the filter replacement?
Thanks for helping
has anyone tried K&N filter on Mitsubishi Diamonte LS or 3000 GT?
UCSC
- Orlie C., NY
Steve
Host
Vans, SUVs and Aftermarket & Accessories Message Boards
Not all vehicles are alike and there are a rare few that may have problems with filters, exhausts, etc. The real clincher that it is a vehicle's problem rather than the filter is the fact that Ford carries and sells a line of our filters at the dealerships. We make the filters for Ford Motorsports and they even took out a 1 page "ad" in our catalog. In fact, we are original equipment on the 2000 Mustang Cobra-R. I find it highly unlikely Ford would endorse a product that causes problems with their vehicles. We supposedly "contaminated" mass air sensors to Ford headquarters and their techs said not a single one was contaminated. If oil was to get
on the hot wire, the wire itself can be cleaned or replaced. There is absolutely no need to change the sensor itself unless it has an internal circuitry short that could not be caused by filter oil. I would also question as to why Ford is the only manufacturer that has this problem. GM, Chrysler/Mopar, and every import maker do not have this issue. In fact, Honda and Toyota only recommend K&N filters when using aftermarket high flow filters as K&N is the only brand of filter the oil does NOT come off of.
Sounds more like a design problem than anything else.
I hope this was helpful information.
www.tornadoair.com and has been seen on Shadetree Mechanic and several other sites.
It supposedly increases your hp and mpg.Cost is about $70.00 and takes five minutes to install.
Before I buy same....I would like to have some input from anyone that has installed same and the results.Usually....If it sounds "too good to be true....it is too good to be true".
Help me NORT
Gas-Saving Products
Steve
Host
Vans, SUVs and Aftermarket & Accessories Message Boards
Don't you think car manufacturers, who have to meet MPG regulations, would use this thing if it worked?
Since I'm convinced there's more power to unrestrict, I'm looking at installing Edelbrock TES or JBA headers next. I'm still researching the intake side, maybe a larger throttle body and modifications to the air box.
BTW, any opinions on the Jet Plug-In Performance Computer for OBD-II applications?
As to the filtering capabilities of K&Ns, the oil bath type filter they use removes more dirt from the intake air than a standard paper element. There have been studies but I don't recall who did them. It was NOT the mfg.
Thanks again,
Tron
There was a post on i-club about somebody doing a dyno comparison on the '02 WRX with & without the K&N drop-in and showed +5 HP gain (about 227HP bone stock). The K&N plus fatter cat back exhaust (BPM I think) added +10HP.
Before installing my K&N I ended up buying two different part numbers because the recommended one didn't fit well and tended to slip down into the airbox even with the rubber strips. Make sure your air filter, whatever brand, fits you airbox tightly or you are going to really screw her up!
I had almost the exact same experience as you. I drive a 1999 Suburban, with 5.7L and 2WD. Last month I installed a K&N air filter.
While the vehicle has increased power, the mpg declined from 20MPG to 15.9mpg. When you get a response from K&N, please share it on this site. I look forward to your response.
thanks