Finally, someone who gets it. I will never put a K&N in my vehicles. K&N is fine for weekend cruisers or for extracting every last HP, but for daily driver, stick with OEM type.
I think if I were you, I would run an open intake and chop off the exhaust, then you'll have a 18 second explorer race car.
so in the research I've done on that test and that one report- I've not found that replicated anywhere else.
as I typed earlier there are some very good paper filters out there - don't get me wrong. But not all are made that way - and not all cars are spec'd to have that clean a filter setup.
There is a test - it's true and that test is followed by quite a few. However GM has their spec, FOrd theirs etc etc. To the best of my knowledge for auto air filters there is not a harmonizing spec for an filter media test except for oil filters.
Now that said - On a case by case basis I would bet there are many cases where a oil and gauze filter works as good or better that what is normal for the car. I also suspect there is the occasionally case bases where that is not true. Same is probably equally to be said for initial and dirty flow rates.
Likewise I'd love to see the same style of side by side done on one of these new dry fibre plastic filters.
The ISO5011 is a universal standard for testing air filters. It provides a direct comparison under the same controlled conditions. K&N states they use ISO5011 for their test standard as well. I have also only seen that one test comparing various name brand auto filters, but know some intricacies of air filters.
Having worked in the air filtration business, it is known(not speculated) that the K&N is a poor filtration device. It has it's place, but I would not recommend having one of those in your stock daily driver. As we say, it's good for keeping out birds and small children, but not much more.
For a normal car(lets say factory stock), I cannot think of one instance where a cotton/gauze/oiled filter would significantly out perform an OEM type of dry paper to justify it's use. You may have lower initial restriction, but that only lasts for a short period and most stock vehicles don't benefit from the lower restriction anyway. You may get a HP or 2 at the top end, but normal driving wouldn't really show that improvement. All the while, you're allowing more dust into your engine.
I know of a company that developed a filter system for the C5 generation Vette that improved power, lowered restriction and increased filtration efficiency with a dry filter, unfortunately it only went as far as testing prototypes.
A cold air intake may benefit from a cotton/gauze/oil filter because it may be able to take advantage of the lower restriction, but again, at the cost of allowing more dust in.
Like you, I would like to see some test data on performance dry filters as well to see the pro's and con's.
If you can't tell, I'm a little passionate about air filters.
can someone download an application to their phone that measures 1/4 mile performance and make a few passes on the same day with and without the cold air kit and report the mph and time? 1/10 of a sec and 1 mph would be significant
perfect, I love speculations off the internet without proof to back them up. So has anyone actually found any gain in mileage in all these years and has been documented, not by just joe blow off the interwebs. I mean actual scientific data in a controlled environment. Just discussing this is chasing your own tail...
For those that missed the entire point, yes a K&N will suck in more dirt initially, that's why you always buy the "cold air kit", but does the cold air kit gain anything, yes I already have my answer on that, no one knows.
I wonder how much of that on the Hellcat has to do with mucking up the tuning of the MAF accuracy under load.
It's a very fickle thing when dealing with a boosted car. heated wire type Mass Air Flow sensors get hard to calibrate when you start having significant pressures in the "pipe".
I'm sure Dodge spent plenty of time getting it down - where a CAI maker might muck the works up and not realize it on a test bench.
Modern stock performance intake filters and systems will be tough to match by any aftermarket system.
On my compound turbo Powerstroke, the stock assembly filter was made by Donaldson, and its flow performance made aftermarket systems unnecessary.
Ofcourse, the brain processes the look an aftermarket system as "sleek".
But truth is that the stock system was designed by better engineers, and does a better job of combining of safe filtration with high flow..
Just to add some additional information regarding fuel mileage, I was able to dig up a couple tests regarding clean and dirty filters and their effect on fuel mileage. I don't think I can post the actual test reports, however, I can give the quick summary of what I found. This isn't comparing a high flow filter vs. a standard, but the results should be similar to a high flow vs. standard and actually the tests below simulated severely clogged filters........
Welcome to the Forum. :wavey:I have a 12 Explorer Limited 3.6. new to the platform. Im a big block Chevy guy but really like the new Ford lines.
Has anyone put the K&N performance intake kit part # 77-2575KS on the car. Pros and Cons.? Is it worth the mod?
What are the other performance mods I can do without messing up the warrany.? Tune? Etc