Has anyone or any other sourse tested these aftermarket drop-in air filter?I was over at the K&N site and they have a video of how they test their product and against others.I have a K&N and was thinking of maybe putting it back in service but there seems to be more con's than pro's.there is also one guy(customer)at the K&Nsite they claims he has a million miles on his K&N filtered truck.Other indepenent on these filters would be great.They do sell many of these filters.Joe
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Independent tests?
- Thread starter Dually
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Where do you get all these cons? Outside of this site.
yes, there are plenty of tests and plenty of anecodotes right here on this site. they will pretty much agree that foam/oil filters do not remove as much dirt as paper filters - and used oil analysis will usually back that up by showing more dirt in the oil. they also add no horsepower to most applications. that being said, many people still use them. I am even tempted to get one for my truck - but I cant even explain why.
Originally Posted By: tomcat27
I am even tempted to get one for my truck - but I cant even explain why.
I know the feeling. I run one of the GN but despise them on a daily driver. However, I ran one on my TL for about 1,000 miles before my conscience got the best of me and I got tired of lifting off the throttle when I went through dust clouds.
I am even tempted to get one for my truck - but I cant even explain why.
I know the feeling. I run one of the GN but despise them on a daily driver. However, I ran one on my TL for about 1,000 miles before my conscience got the best of me and I got tired of lifting off the throttle when I went through dust clouds.
Originally Posted By: BuickGN
I got tired of lifting off the throttle when I went through dust clouds.
That's funny I do the same thing b/c of the open aftermarket filter I have. I'm gonna give mine another UOA to prove it's worth and if it fails I'll replace it w/ a Donaldson powercore.
There are test on AEM's site (they paid a lab to run the tests). Also S&B has a lot of test data from test they did in their own ISO 5011 certified lab comparing several brands including amsoil nanofiber. That is also in this thread filter tests. It's hard to say which numbers to trusts but S&B's numbers seem to be in line w/ that good old spicer filter test. The thing I don't like about AEM's numbers is the low CFM they test their filters at, even when it's a big cone which might be used on a big gas engine or even a diesel.
I got tired of lifting off the throttle when I went through dust clouds.
That's funny I do the same thing b/c of the open aftermarket filter I have. I'm gonna give mine another UOA to prove it's worth and if it fails I'll replace it w/ a Donaldson powercore.
There are test on AEM's site (they paid a lab to run the tests). Also S&B has a lot of test data from test they did in their own ISO 5011 certified lab comparing several brands including amsoil nanofiber. That is also in this thread filter tests. It's hard to say which numbers to trusts but S&B's numbers seem to be in line w/ that good old spicer filter test. The thing I don't like about AEM's numbers is the low CFM they test their filters at, even when it's a big cone which might be used on a big gas engine or even a diesel.
Is this true even after they are loaded up? Do the K&N's get better at filtering the longer they are left on?
K&N and pretty much all filters get better at filtering as they load up w/ dirt. This doesn't mean you should leave it in passed the recommended service intervals hoping for better filtration. Oiled filters can start to dump dirt once they have reached their maximum capacity so if you run it too long after it's full of dirt it can dump it in your engine.
My cav is so low on power I'm sorely tempted to pick up some either a K&N panel filter, or something. I mean, it's bearable, but a little more oomph at WOT would be nice.
Heh. Thats just the 2.2L. It does not help you have the 3T40. Tough trans, but they geared it high as they possibly could get away with to keep the revs down on the highway.
Yep and it STILL runs 3600RPM @ 75MPH. I'm kinda frustrated because there really is NOTHING I can do to get more power, without replacing the cylinder head with a ported version.
5-speed conversion. Headers. Turbo.
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If anything I would do a 4 speed swap. Still would need a new head, because that is where the bottlenekc is, or so the guys a jbo have told me. And as for a turbo, where the heck would I find a turbo for the 2.2 ohv? lol
Originally Posted By: Dually
Has anyone or any other sourse tested these aftermarket drop-in air filter?
Here's a report from a test done by Arlen Spicer a few years ago ..
ISO 5011 Duramax Air Filter Test Report
Has anyone or any other sourse tested these aftermarket drop-in air filter?
Here's a report from a test done by Arlen Spicer a few years ago ..
ISO 5011 Duramax Air Filter Test Report
Great post. The people debating the merits of K&N verses Paper should read this. What the report does not say is does the extra dirt let in by K&N style filters cause more appreciable engine damage or not. I made my choice, I am not going to use K&N in my cars, but I do not own a race car.
Originally Posted By: chambers
K&N and pretty much all filters get better at filtering as they load up w/ dirt. This doesn't mean you should leave it in passed the recommended service intervals hoping for better filtration. Oiled filters can start to dump dirt once they have reached their maximum capacity so if you run it too long after it's full of dirt it can dump it in your engine.
So the filter that's been filtering gets plugged with dirt. So you are saying now that dirt somehow goes into the engine to make room for more dirt? See how that doesn't make sense. It's just going to stop working. It's not going to release the dirt.
K&N and pretty much all filters get better at filtering as they load up w/ dirt. This doesn't mean you should leave it in passed the recommended service intervals hoping for better filtration. Oiled filters can start to dump dirt once they have reached their maximum capacity so if you run it too long after it's full of dirt it can dump it in your engine.
So the filter that's been filtering gets plugged with dirt. So you are saying now that dirt somehow goes into the engine to make room for more dirt? See how that doesn't make sense. It's just going to stop working. It's not going to release the dirt.
Originally Posted By: shokhead
So the filter that's been filtering gets plugged with dirt. So you are saying now that dirt somehow goes into the engine to make room for more dirt? See how that doesn't make sense. It's just going to stop working. It's not going to release the dirt.
It makes sense if you think about it. First the filter begins trapping dirt and as it does more of it's pores become clogged therefore it gradually stops more dirt. Now all this is good unless you leave the filter in place too long w/o servicing it and it is filled to capacity w/ dirt and starts starving your engine for air. When the engine becomes starved for air it will presumably attempt to pull more air and can pull the dirt through the filter. Don't believe me, leave a typical oiled filter in too long and you'll find out.
So the filter that's been filtering gets plugged with dirt. So you are saying now that dirt somehow goes into the engine to make room for more dirt? See how that doesn't make sense. It's just going to stop working. It's not going to release the dirt.
It makes sense if you think about it. First the filter begins trapping dirt and as it does more of it's pores become clogged therefore it gradually stops more dirt. Now all this is good unless you leave the filter in place too long w/o servicing it and it is filled to capacity w/ dirt and starts starving your engine for air. When the engine becomes starved for air it will presumably attempt to pull more air and can pull the dirt through the filter. Don't believe me, leave a typical oiled filter in too long and you'll find out.
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