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#491521 - 08/31/03 04:14 AM Re: Air Flow Tests on Napa Gold, Amsoil,Jackson Racing,K&N, and Baldwin
kondor Offline


Registered: 08/30/03
Posts: 12
Loc: MS
For those with Cummins Dodges in warranty it would be wise to check the FAQ on the Dodge Ram link at the Cummins website.

Cummins mentions K&N specifically and states that DC and Cummins regard highflow filters like the K&N a <nono> due to inadequate filtration leading to piston scoring. [LOL!]

A mention of a manufacturer by name indicates that Cummins is prepared to present evidence in court.

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#491522 - 01/09/04 11:46 AM Re: Air Flow Tests on Napa Gold, Amsoil,Jackson Racing,K&N, and Baldwin
Dean Barker Offline


Registered: 12/13/03
Posts: 1
Loc: Osage, Iowa
Thanks for running these tests. It takes something like this to enlighten us as to the claims of the different filter manufacturers. All the agricultural equipment engines that I am aware of use paper element air filters and most engines will last 5,000 to 10,000 hours and up to 30,000 hours running in very dusty conditions. In the days before the safety element was incorporated after the main filter, if the main filter ruptured (essentially no filter) the engines would not last 10 hours. Come to think of it, the safety elements (after filters) never show any (none whatsoever) signs of dirt getting thru the main filter unless the main filter ruptures.

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#491523 - 01/23/04 10:52 PM Re: Air Flow Tests on Napa Gold, Amsoil,Jackson Racing,K&N, and Baldwin
jthorner Offline


Registered: 07/11/03
Posts: 1130
Loc: California
Interesting reading for sure. I'm sticking with good quality paper filters. For normal street use the marginal potential for improved flow with an oiled filter simply does not make any sense, particularly with the risk of letting more dirt in.

John

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#491524 - 03/27/04 03:17 AM Re: Air Flow Tests on Napa Gold, Amsoil,Jackson Racing,K&N, and Baldwin
Mamala Bay Offline


Registered: 02/21/04
Posts: 2085
Loc: USA
I had a carb 88 Toyota Corolla and when I checked the carb with paper filter I could feel a film on it. When I replaced with the Amsoil Foam Filter, the carb was clean and no film after 20,000 miles. I got to belive the Amsoil filters a bit better than the paper filter but Amsoil doesn't make the foam filter for 97 Ranger 3.0...got stuck with the paper filter. Anyone know of a foam filter for 97 Ranger 3.0...

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#491525 - 04/14/04 03:39 AM Re: Air Flow Tests on Napa Gold, Amsoil,Jackson Racing,K&N, and Baldwin
TR3-2001SE Offline


Registered: 01/21/03
Posts: 1759
Loc: Elizabeth City NC
I have a Miata that uses the same filters used in this test. I had used the OEM which he tested and was getting around 28mpg. I looked for a better filter before the test and found the NAPA GOLD. My milage went to 31mpg and stayed there. I even reinstalled the OEM filter and it went back to 28mpg. This is a car I drive to work over the same route day in and day out at the same speeds using cruise control. The difference in flow though little can make a big difference in the milage you get.

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#491526 - 05/14/04 09:51 AM Re: Air Flow Tests on Napa Gold, Amsoil,Jackson Racing,K&N, and Baldwin
gerhardb Offline


Registered: 11/18/03
Posts: 94
Loc: Morristown, NJ
For the record:

I have a 1998 Honda Prelude with a 2.2L VTEC H22A4 engine.

I've been using a K&N drop in oiled filter.

The filter has been properly mainstained and serviced.

The winter was particularly rough with respect to snow. As such, the DOT was salting and sanding the roadways a considerable amount.

I ran a recent UOA on some 0W40 Mobil 1 oil and the results indicated that my silicon what 5 times larger than normal!!

I left the same oil filter in the car, changed the air filter out with a NAPA Gold filter, and changed the oil.

During the next oil change the UOA indicated that the silicon had chnaged to acceptable levels.

It appears that in extremely dirty situtations that K&N passes more micro-fine particles than the OEM type filters.

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#491527 - 08/17/04 06:08 AM Re: Air Flow Tests on Napa Gold, Amsoil,Jackson Racing,K&N, and Baldwin
SSLoneStar Offline


Registered: 10/10/02
Posts: 134
Loc: UNITED STATE OF TEXAS
Great work AnthonyS
This topic will rage on for ever it seems ??
I dont have the means to conduct such test in such a manner as AnthonyS did. But what I have done is the simplest route IMO
I ran K&N air,M1 and K&N oil filter
I ran Amsoil filter,M1 and **Delco Gold Oil(before they discontinued them)**
I ran WIX paper,M1 and WIX oil filter
Each was run for 3K miles per filter/oil combo,samples taken and tested
During each test the car was Dyno-Jet tested for RWHP***numbers NEVER CHANGED***
Best over-all oil test result was from the WIX,M1,WIX combo.
Ya`ll can argue if the sky is blue,and throw money into that Amsoil Pyramid scam/K&N sucksbetter hype till **** wont have it,but Anthony did a fine job of kicking the HYPE square in the ashtray !!
But the common folks arrived at the same point some time back,just pop a few lids and see whats under there.......... LOL!! PAPER BABY !!

SS/LS

Test Vehicle:
01 SS Camaro LS1/M6
338 rwhp 334 rwtq
12.97 @111.** 1/4 mile w/KDW Street tires
Direct-Flo,w/WIX paper
S3 PTB
GMMG Catback
73K miles

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#491528 - 08/17/04 06:20 AM Re: Air Flow Tests on Napa Gold, Amsoil,Jackson Racing,K&N, and Baldwin
SSLoneStar Offline


Registered: 10/10/02
Posts: 134
Loc: UNITED STATE OF TEXAS
AnthonyS,I read your after a 5.0 TB
Check with GM in regards to their TSB on GM MAF`s being fried from oiled filters,it will give you a jump on the blue oval venture.

Side note to the richardhead that saw fit to tag me a noob almost instantly via email to my previous post.Please refer to my member # and register date !! What an asstray [Roll Eyes]

SS/LS

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#491529 - 09/08/04 11:30 AM Re: Air Flow Tests on Napa Gold, Amsoil,Jackson Racing,K&N, and Baldwin
ebaker Offline


Registered: 08/17/04
Posts: 681
Loc: TX
The dirt on the secondary filter was from many 1000's of cubic feet of engine airflow over the 500 mile test. The extra dirt passed by some filters may not be significant. I'd bet there is just a fraction of a gram difference in the dirt passed by the best vs worst filter. Still I'm a little reluctant to put the K&N I have on my car.

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#491530 - 09/11/04 03:51 PM Re: Air Flow Tests on Napa Gold, Amsoil,Jackson Racing,K&N, and Baldwin
Pablo Offline


Registered: 10/28/02
Posts: 47175
Loc: Duvall WA - Pacific NW USA
As far as the Amsoil wisecrack, knock it off.

Funny thing about the Amsoil airfilter is that I actually didn't/don't trust them that much and in fact went back to a paper filter on my newer car because of "gut instinct". Yet this car in the past and other cars, including the turbo with 250K miles, show pretty darn clean UOA's and low wear rates.

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#491531 - 09/11/04 07:56 PM Re: Air Flow Tests on Napa Gold, Amsoil,Jackson Racing,K&N, and Baldwin
dropitby Offline


Registered: 04/18/04
Posts: 706
Loc: Boynton Beach FL.
I took my OEM air filter out of my New SE-R at about 5000 miles. There was a dark stain (dirt) on the filter from the middle toward the intake in a cone shape. That pretty much tells me most of the air flow is in that area of the filter. So why do they make a square box paper filter. [I dont know] I tryed the AMSOIL filter for the next 3000 miles and I don't know if it was too oiled from the factory or what but my mileage fell,so I put in a NAPA Gold and it returned to normal. I still think a different type filter (shape)would do better in most cars than the square box type. [Frown]

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#491532 - 09/13/04 04:08 AM Re: Air Flow Tests on Napa Gold, Amsoil,Jackson Racing,K&N, and Baldwin
goodvibes Offline


Registered: 03/21/04
Posts: 775
Loc: Palatine IL
It shouldn't matter very much. When the dark area gets too restrictive, the air will find further away areas of the filter to pass through.

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#491533 - 01/19/05 06:00 AM Re: Air Flow Tests on Napa Gold, Amsoil,Jackson Racing,K&N, and Baldwin
daves66nova Offline


Registered: 04/11/04
Posts: 3504
Loc: los angeles
what if you were to plumb 2 or even 3 airboxes with good paper air filters in them, so that you have alot more flow,plus better filtering? you can connect them as a "pitchfork" setup,where all 2 or 3 boxes endup connecting into the main intake. [LOL!]

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#491534 - 01/29/05 05:27 AM Re: Air Flow Tests on Napa Gold, Amsoil,Jackson Racing,K&N, and Baldwin
cafasco Offline


Registered: 01/28/05
Posts: 47
Loc: Eagle, Idaho
Anyone have any unacceptable UOA's while using a Amsoil, UNI, or other oil charged open cell foam air filter? As for cotten gauze, they were designed for racing (i.e. max air flow while keep the big stuff out). I am a bit surprised by the oil charged open cell foam filtration results. My OEM Honda dirt bike filter is an oil charged foam...

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#491535 - 01/30/05 10:38 PM Re: Air Flow Tests on Napa Gold, Amsoil,Jackson Racing,K&N, and Baldwin
TheFuror Offline


Registered: 07/26/04
Posts: 374
Loc: Northern California (Vacaville...
quote:
Originally posted by cafasco:
Anyone have any unacceptable UOA's while using a Amsoil, UNI, or other oil charged open cell foam air filter? As for cotten gauze, they were designed for racing (i.e. max air flow while keep the big stuff out). I am a bit surprised by the oil charged open cell foam filtration results. My OEM Honda dirt bike filter is an oil charged foam...

Your dirt bike has to deal with water, mud, and lots of dirt, things that would easily and quickly clog a paper filter. Hence the oiled cell foam.

[Cheers!]

Bob W.

Furor: n. A general commotion; public disorder or uproar. [Middle English furour, wrath, fury, from Old French fureur, from Latin furor, from furere, to rage.]

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