Want to go with a different Air Filter - Advice

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The Amsoil one is washable, but for the price it's cheap enough that I will just replace it. I have driven 50K KM (30K miles) and the existing OEM filter looks brand new and so I left it in there for 100K KM (60K miles) and it's just starting to get a tad dirty now so even if I get a fraction of that out of the Amsoil I'm laughing for the price.

Also they want too much money for an AEM/AFE up here and I'm not after performance, I'm after better filtration and the EAA seems to be one of the best on the market for that so I went with it instead.

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I wasn't aware that the Amsoil filters were washable, I thought you were just supposed to vacuum or blow them off. The price difference is unfortunate, but the filtration numbers should always be questioned. S&B has several tests for various filters on there site here filter efficiency test. Their results for an amsoil drop in here amsoil vs. ac delco aren't very good compared to the other filters. I'm interested in the accuracy of these results myself as I'm currently testing a filter on my intake.
 
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Originally Posted By: chambers
Why didn't you get the AEM dryflow or AFE dry filter, at least you can wash those?

Loobed why would pulling in hot air decrease mileage? Since the pcm will typically keep the A/F ratio locked unless at WOT, and hotter air would me less dense air and therefore less fuel. Is there something I'm missing in that assumption? Plenty of people run "cold air intakes" which are effectively hot air intakes like this would be and see no decrease in gas mileage.


The hotter air could cause your engine to ping and then the timing gets retarded back cutting your mpg by a third if not more. IF your car does not ping then the hotter less dense air will require less fuel making your mpg go up, but your hp will drop. This is why Hypermilers construct warm air intakes.
 
Originally Posted By: tpitcher
Originally Posted By: Saturn_Fan
Originally Posted By: tpitcher
StevieC,

Try a NAPA Gold filter, it breathes more than standard filters.

Am putting one in now on my Saturn.



AC Delco air filters won a head to head test on this very site on an intro page I used to see on BITOG for about a year, against a long list of competitors.



Thanks Saturn_Fan - I'll take back my NAPA Gold tomorrow!
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Will pick-up an AC Delco.
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Saturn_Fan,

Went all over including GM trying to find an AC Delco air filter, the dealer can get one for about $30, so I put in the NAPA Gold.

Thanks though!
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Originally Posted By: chambers
Why didn't you get the AEM dryflow or AFE dry filter, at least you can wash those?

Loobed why would pulling in hot air decrease mileage? Since the pcm will typically keep the A/F ratio locked unless at WOT, and hotter air would me less dense air and therefore less fuel. Is there something I'm missing in that assumption? Plenty of people run "cold air intakes" which are effectively hot air intakes like this would be and see no decrease in gas mileage.


I don't know. I always got better fuel mileage on cold days. Cold air should have more aerodynamic resistance because it is more dense than hot air, so I should get worse mileage on cold days. When I drag raced I always had faster times at the end of the day when it got cooler.

My guess at why I get better mileage with cold air is because the amount of friction per revolution in the engine is the same whether it is producing full power or partial power. Cold air allows more fuel/air into the cylinder giving it more power per revolution. Hot air gives less power per revolution but with the same amount of friction. You also get better mileage at sea level than you get at high altitude because of air density.
 
I'm changing out a bunch of pickup and SUV filter for people who spend their time in the dusty dirt roads around here. The best solution for maximum protection and time between changes is to throw out the whole box and attach the Donaldson D080020 (Horizontal) or D080026 (vertical). Those come with the PowerCore inside along with a safety filter. Both models have a 3.5" output to the engine, and they have silicon reducers if your intake is smaller.
That increases your filtering efficiency to 99.95%
 
I got my new Amsoil EAA Conical filter today and I have to say I'm very impressed at the high quality construction and I think it will do just nicely in my application.

Looks like I will be able to use my old air box as a shell around this new filter and I can run a pipe from the filter through the hole in the air box and to the hose that used to connect to the air box.

Just another quality product from Amsoil. God I love their stuff!
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Originally Posted By: StevieC
I got my new Amsoil EAA Conical filter today and I have to say I'm very impressed at the high quality construction and I think it will do just nicely in my application.

Looks like I will be able to use my old air box as a shell around this new filter and I can run a pipe from the filter through the hole in the air box and to the hose that used to connect to the air box.

Just another quality product from Amsoil. God I love their stuff!
thumbsup2.gif




I wish they made a drop-in replacement for my car, but I have a feeling they never will. The last 2 air filters I've bought for my car were made in 1998 and 2002 respectively. Something tells me they're not big movers
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The filter I bought isn'ta drop in replacement, it's a conical filter that has the right size mouth on it to hook up to my MAF side.

It fit perfectly and it makes the engine sound mean when I step on it. I kinda like it.

I didn't snap any pics yet, because shortly after I installed it has been raining on/off here and I haven't had time to get a PIC in. I will post pics though...

Oh yeah, and forgot to mention that my air temps stay the same according to my scan gauge and this new filter isn't closed off in any way from the engine heat as you will see when I post pics.

I'm half way through a tank of fuel as well and the mileage has stayed the same, but the acceleration seems to be much smoother than before.
 
Yea people often spout off stuff about heat soak w/ the open filters and short ram air intakes, but that is only a problem when you sit idling for a long period. As long as your car is moving air will flow under the hood and temps will be pretty close.
 
Fit is a most basic requirement of good filtration, so don't get too clever,here. Start with the oem AF and compare it to other filters,that fit, and use the one that seems to be the best constructed of the possibilities at hand.
 
So this is the setup I ended up doing on my Santa Fe... I will post pics under the hood tomorrow when it's light out, but here is my technical diagram of what I did so you can understand the pictures I take tomorrow.

Before:

engine.jpg


After:
engine2.jpg
 
Sorry,your explanation was fine. I just read the initial post and not further where you state you are installing the conical filter.
 
Originally Posted By: FZ1
Sorry,your explanation was fine. I just read the initial post and not further where you state you are installing the conical filter.
It's all good
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So here is what it looked like before my modification...

4.jpg



And here is after... I'm using a microwaveable safe Rubbermaid container with lid which I cut holes in the top/bottom. The Amsoil EAO filter is actually attached my MAF through the hole in the lid of the container. Then the bottom (clear part) has a hole in the bottom with an aluminum duct that connects to the cold air flow line. There is about a 3" gap from the bottom of the container and the bottom of the conical filter and a 0.5" gap around the filter inside the container. Flows really well and the engine responds better than the old cotton-gauze filter. Air temps are the same as before according to my scan gauge.

eaa2.jpg


eaa1.jpg
 
The acceleration is very smooth and the engine is just as quiet now that the filter is encased in the plastic container.

I really am liking this Amsoil filter and can't wait to see what the used oil analysis looks like in 10K KM (6K miles) when I send it in.

Hoping that it fixed my elevated Silica issues which are preventing me from extended OCI's.

Steve
 
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