Would hate to go with a cone air filter ... but limited for options, need help!
 

I will soon be installing a MAF (a ghetto home brew one) into my 944NA. Hence, I will not have an adapter that would connect the 2.5" end of the MAF sensor housing to the factory air box.

I will not be able to make or get a custom adapter to connect the MAF to the stock airbox (at least not until I've done some tests).

This brings me to my question: How much crappier are the filtration capabilities of a cone air filter (such as K&N) compared to the factory air filter? I know I will be blowing hot air into the engine, but I would like someone to tell me how much dirtier that air would be too. I've read up to 18 times dirtier on one post (not on Pelican though)! Could it be true.

I also saw some cone shaped air filters at my local autozone that were made with the same paper like material that normal air filters are made out of. These just happened to be shaped like a cone. Would this be a better short term solution as compared to the metal-gauze or whatever-mesh type K&N?

This ghetto cone setup will only stay on the car until i've done some tests and will be replaced with the stock air box as soon as I have an adapter shipped to me (so we are talking a week max here).

Once again, thank you for all your help.

I have ran a cone filter on my 944 turbo for years and I like it very much. You want to get the K&N factory one of the knock off k&N that has the oilable cloth filter material. When it gets dirty just remove and clean and re oil it but not alot of oil as you might mess up your MAF sensor with oil residue that comes off of the filter when running the car. You can make a shield to keep the hot air from around the filter but with a NA I don't think that it would matter that much but that would be your call.

this is one of those urban myths.

while a paper filter can indeed capture more material, that does not mean that it does a truly better job of protecting your engine.

the fact of the matter is that after decades of K&N making filters, and millions of cars running them, there is no evidence whatsoever that any of them ever suffered from running that filter, assuming that the filter was properly oiled, installed and maintained.

the reality is that the material that gets past the K&N that might have been caught by a paper filter is so small that it just gets burned up.

i've been running them for about 30 years, on at least 20 of my own cars, and countless customer's cars. i've torn down many of the engines. not one ever suffered from the filter.

the only people that have had problems with the filters have not followed instructions. the ones that think they are bad are just stuck on the hype floating around out there, and are not the type to modify their cars (either because they are too broke or cheap, or they bought into the "porsche did everything that could be done" nonsense)

an airbox or shield around the filter will go a long way toward maximizing power

K&N have been around for a long while and have a proven track record. I just think they are old school in that other companies have used more modern filtration materials. I also don't like the oil aspect of K&N, even if you apply it as directed it does find it's way into the AFM or MAF and that cannot be good.

I use AFe Dry and haven't had any issues plus you can custom build your filter with them to suit your space, filtration and flow requirements. Expensive compared to K&N though:

Performance Air Filters

i have never had the oil go anywhere it was not supposed to.

the key in proper oiling is to use only the aerosol can, not the pump spray bottle, and use a very light dusting, like a woman would use hairspray, and not like one would use an underarm deodorant

Never tried it that way, I've always applied it from 3in away from each of the raised pleats like K&N advise and it always finds it's way into the intake. It doesn't mist from 3in away, it soaks into the filter. Your way might stop the oil in intake but I don't think it's will help filtration.

K&N Air Filter Cleaning Instructions

i get a good even coat my way, similar to how you would paint a car. farther away, with dusting strokes.

the idea of the oil is to give the dirt something to cling to, and to fill the gaps in the membrane. it is not to provide a liquid barrier. it it's wet, you used too much. it should look dry.

by the way, i had this very discussion with K&N. they agreed with me. the problem is that their squirt bottles do not provide the proper atomization, and they are trying to get away from the aerosol cans.

Thanks guys. I was actually expecting the opposite response. As soon as I have the maf installed, I will post a parts list and DIY. Altogether it should be under $150 including brand new maf and el cheapo ($39) cone air filter. K&n is a bit more so it would be up to the installer to pick or not. Personally, I am undecided on the brand of filter as yet.

Seriously LOL'ing. Woke the dog. You have a way with words, flash.

stick around, there's another show at 11

Yeah, that was funny. I am tunning in at 11

No one talked about too much oil. Too much oil is bad for a couple of reasons, it can suck oil into the AFM and such, and it doesn't allow air to flow through the filter. It will make the car run worse than before. I have seen a smaller engine not even run because someone put WAY too much oil on the filter. That was an extreme case, though.

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