K&N Air filter

[Ram4Sam]

I am glad you researched my experience, too bad your air filter research is just as **** poor



Blackstone is another story, I was less than impressed with their UOA.



No personal angst, just dislike for such a worthless product. I have seen, firsthand since your ASSumptions about research are top notch, too many issues caused by them. Proper servicing, improper servicing, it doesn't really seem to matter. They are junk at best, junk with really good marketing.



My dislike isn't only with K&N, I dislike WIX fuel filters for similar reasons.

Looks like it doesn't take any research to see you aren't impressed with anything except yourself... ...



Ego spill on aisle six.....



Sam

 

[Ram4Sam]

And in Palmdale at the drags where the sand blows across the track... ... ... ... the good old days

That was a blast..... All my pictures from that day were lost when my computer died a few years ago... ... :{

Sam

 

[AH64ID]

Looks like it doesn't take any research to see you aren't impressed with anything except yourself... ...

Ego spill on aisle six.....

Sam

Just takes a little quality, and no BS...

So where do you think sub-par items fall? If that's ego, then sure I have one.

But hey, Ford owners have the same blind love than K&N users do. Despite all the numbers and factual data they keep selling.

 

[mfurrh55]

Everybody,happy happyhappy

 

[RustyJC]

As far as I'm concerned, ISO 5011 filter efficiency settles any argument since it is a universally recognized (by the international technical community) testing procedure, and K&N comes up way short there.....



Rusty

 

[NormalJoe]

I would agree that K&N have a much better marketing department than quality of product. However I would say there are better products out there than a stock OE replacement, and a lot of problems are depending on how well the vehicle/filter are maintained.

 

[AnOldBiker]

I've always like reading threads of filtration and filtration systems, they get so heated and some are so convinced they are right and others are wrong, some don't much care that much. No matter what, this discussion will go on and on as loan as there are vehicles that need them.

I will mention that when I first started oil sampling, I worked in a refinery, and did the same as mentioned before by someone, took a sample for testing. I sent one into BlackStone, one to my refinery lab and one with a friend to his refineries lab. (Hell I had 3 gallons to play with, why not ?) We compared the results from all three and found they were all in accepted perimeters as comparison of the results, (actually exact results). I wanted to know if I can accept a particular lab once I retired. Those lab results decided that I should stayed with BlackStone. And yes, refineries do have mega bucks into their lab equipment and tech training.

 

[AH64ID]

I would agree that K&N have a much better marketing department than quality of product. However I would say there are better products out there than a stock OE replacement, and a lot of problems are depending on how well the vehicle/filter are maintained.

Name 1 product that fits the stock box with better filtration and flow.

 

[DRyder]

Folks,

TDR Issue 56 and 59 covered a very detailed test on the subject of air intake systems. Given the heated debate anyone wanting to improve airflow would learn ALOT from this data. As far as filtration goes…well I'm no expert so I'll stick with what the OEM engineers deduced over a decade ago in my case. In the TDR article the conclusion was made that air density is more important than air flow in third gen trucks. This is a cut and paste from the second part of the special:

• Every 5.5°F increase in air intake temperature reduces engine power by 1%.
• Every 1°F of cooler intake air will reduce EGT by approximately 1.5°F.
• Cooler intake air reduces under hood temperature.
• OEM sealed air box allows the engine to cool down faster than semi-open heat shield type air boxes.
• Cooler intake air improves mileage. Every 10°F drop in intake air increases mileage by 1%.
• The OEM sealed air box provides the coldest air to the engine. Semi-open heat shield type air boxes in real-world driving conditions allow hot engine compartment air to enter the intake.
• Second Generation trucks do not de-fuel with a rise in air intake temperature like the Third Generation trucks.
• On Third Generation trucks, power numbers from a chassis dynamometer are much lower in real-world driving due to under hood heat generated from the radiator, engine, exhaust manifold, turbocharger and heat soaking of the intercooler.
• In real-world acceleration tests on Third Generation trucks, the OEM sealed air box allows the truck to accelerate faster than the aFe Stage 1 semi-open air box when engine compartment temperatures are within normal (120 to 140°F) operating range in 80 to 90°F ambient air. With low engine compartment temperatures, the aFe air box allowed the truck to accelerate faster than the OEM air box.
• On the Third Generation trucks, intake air temperature has a much larger effect on engine power than lowering air flow restriction within the air intake. A low air flow restriction intake can make more than 10 horsepower above the OEM air box. However if engine compartment air is getting inside the intake air box, the engine can lose up to 50 horsepower more than with the OEM air box.
• The new conical drop-in type stock replacement filters have a higher air flow restriction than the OEM air filter.
Pete Tomka
Performance Systems Mfg.


Given this information, it would seem unwise to choose a K&N or any other conical style filter if performance is what you desire. A PSM cool power set-up has more data supporting performance while retaining the OEM filter for piece of mind. Links to the article are below:

http://www.genosgarage.com/GenosGarageTechArticles/TDR56_AirIntakeSystems-Part1.pdf
http://www.genosgarage.com/GenosGarageTechArticles/TDR59_AirIntakeSystems-Part2.pdf

As always, Take care!

 

[CKelley1]

thanks dryder and ah64id, it is nice to see others have researched filters. the tdr article was awesome and if you read it carefully several times you will start to see the stock entire intake is better than any aftermarket. we took advantage of the improvements to the 6.7 and bought 10 takeoffs for about $50 each and installed them on our 5.9's along with a psm kit. most had new or nearly new filters