Air Filter question
Posting Guru
Joined: Apr 2011
Posts: 1,119
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From: Hartland, WI
There will be no benefit to running a K&N on the street. The only vehicle that I work on that has one is a UMP Modified dirt track car. We run a large filter with an outer wrap to keep the large particles out and wash the filter weekly. Then again, this engine (383 stroker) turns 7200rpm and makes 650hp. Maybe some dirt is getting by? Doesn't really matter in this case since the engine gets torn down every season and the oil is changed every two weeks. Once we build it up to a 430 Alcohol that will change to weekly oil changes.
Junior User
Joined: Sep 2011
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From: Eastern Washington
Tuned
Joined: Apr 2011
Posts: 464
Likes: 5
From: Redmond, WA USA
There will be no benefit to running a K&N on the street. The only vehicle that I work on that has one is a UMP Modified dirt track car. We run a large filter with an outer wrap to keep the large particles out and wash the filter weekly. Then again, this engine (383 stroker) turns 7200rpm and makes 650hp. Maybe some dirt is getting by? Doesn't really matter in this case since the engine gets torn down every season and the oil is changed every two weeks. Once we build it up to a 430 Alcohol that will change to weekly oil changes.
This is perfect application for a K&N - you are racing and spend a lot of time at WOT, need every last fraction of a horsepower, and don't care about engine life as it gets rebuilt once per season if not more often.
Tuned
Joined: Apr 2011
Posts: 464
Likes: 5
From: Redmond, WA USA
I'm not saying that you are wrong but I called 4 of my friends and both of my brothers and we all have 92-97 150's or 350's with the 5.0,5.8 or the 7.5 and all 7 of us have the k&n in them and thats how we bought them. my brother got his in june of 1998 and it is a 97 350 with the 460 in it, it had 6k miles on it and it had the k&n in it so thats why I was under the impression that they were stock in these years. I apologize if I am out of line that is not my intention it was just my information that I had on hand. So I would be intersted to know if they were stock in those years out of some plants or for some other reason. MERRY CHRISTMAS hope you all have a safe one.
Look, I have worked for a number of vehicle manufacturers in engineering. This whole notion that OEM stuff is crap and aftermarket is better sells A LOT of unnecessary stuff (especially these days when a bone-stock 400hp Corvette can get almost 30mpg on the highway, IF you keep your foot out of it). If any truck manufacturer could increase their EPA fuel mileage numbers simply by changing the air filter element, you don't think they would do it??? I used to think that the stock equipment is crap as well, while working on cars before I went to engineering school, and then worked for a number of companies and was involved first-hand in product development (you would simply not believe the thousands of hours of testing that every part goes through, it can take several months just for the testing phase).
In the end, run what you want - it's your car, your nickle.
Junior User
Joined: Sep 2011
Posts: 99
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From: Eastern Washington
Redmondjp I am not trying to argue with you by anymeans I am positive you would know more about this than I. I was mearly saying that I was told that they were stock and that the back up I had was all of these trucks that have the K&N in them. It was more of a Question than a statement but now as I go Back and read what I said It DID seem argumentative and that was not my intention I am SORRY for the misunderstanding. And you are right about how well they market there stuff. Hope there is no hard feelings. Happy Trucking!!!!
Hotshot
Joined: Sep 2001
Posts: 11,958
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Correct, definitely not factory.
i ain't rite
Joined: Mar 2005
Posts: 65,447
Likes: 5,517
From: Marlboro Mental Hospital.
a K&N air filter is a diesel killer in dusty conditions.
diesels are particularity vulnerable to the fine dust particles that a K&N let pass, and you end up with a condition called "dusting"
it is when the fine stuff destroys the turbo and internal engine components
diesels are particularity vulnerable to the fine dust particles that a K&N let pass, and you end up with a condition called "dusting"
it is when the fine stuff destroys the turbo and internal engine components
Senior User
Joined: Aug 2010
Posts: 235
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From: Beatrice, NE
Look, I have worked for a number of vehicle manufacturers in engineering. This whole notion that OEM stuff is crap and aftermarket is better sells A LOT of unnecessary stuff (especially these days when a bone-stock 400hp Corvette can get almost 30mpg on the highway, IF you keep your foot out of it). ....... I used to think that the stock equipment is crap as well, while working on cars before I went to engineering school, and then worked for a number of companies and was involved first-hand in product development (you would simply not believe the thousands of hours of testing that every part goes through, it can take several months just for the testing phase).
IIRC- I believe even some of the performance air intake kits available from Ford Racing use an aftermarket style air filter.
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Elder User
Joined: Oct 2008
Posts: 550
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From: Colorado
I have heard the best stock drop in air filter is the amzoil EA filter. Flows more air than any cotton gauze filter and traps more dirt. Not to mention doesnt need any oil and only vacuumed or lightly air blown for service.
Last edited by Fomoko1; Dec 27, 2011 at 10:23 PM. Reason: Edit out sale ad.
Tuned
Joined: Apr 2011
Posts: 464
Likes: 5
From: Redmond, WA USA
Redmondjp I am not trying to argue with you by anymeans I am positive you would know more about this than I. I was mearly saying that I was told that they were stock and that the back up I had was all of these trucks that have the K&N in them. It was more of a Question than a statement but now as I go Back and read what I said It DID seem argumentative and that was not my intention I am SORRY for the misunderstanding. And you are right about how well they market there stuff. Hope there is no hard feelings. Happy Trucking!!!!
Junior User
Joined: Sep 2011
Posts: 99
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From: Eastern Washington
New User
Joined: Dec 2009
Posts: 23
Likes: 0
From: Chicago
I just found the K&N pdf for their fipk and found the part number of the filter. Then I went to advanced and got intake pipe to match the filter and factory intake piping. Lastly, I built brackets to stabilize the intake and in the end I gined .5 mph for under $70. Just my 2 cents
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