Myth busted-Pod vs OEM my research results

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oldcar

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Guys, I would like to share my research results of well none Pod vs Audi oem filter. Those who sticks to Pod please do not get offended or upset. My finding is based on my physical data-total filtering surface area...

Audi OEM s3 had approx 134 paper fins and the total dimension is 134X3.5cmX16.7cm = 7832 cm3

Pod had = 71 fins X1.8cmX17.6cm = 2249 cm3.

Therefore Oem had[ (7832-2249)/7832] X100 = 71% more filtering surface.

Ok, You would say my filter box is a restriction, so I cut it open at the bottom-problem solved.

Another factor was, this particular pod-not to be named had metal mesh inside it- another cause of restrcition with AUDI OEM did not have. Other factor is filter elements-more flow?? more dust, and here I am only talked about the surface area. so 71% more than Pod is the truths, myths busted......View attachment 65558 View attachment 65559 View attachment 65559

I would say, any after market POD filters must come up with MORE FINS to match the Audi OEM.
Have your say and welcome any positive/negative comments Thanks
 
But that pod filter isn't aftermarket it's oem for a honda s2000 so it's oem vs oem
 
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I'm offended AND upset!!!


Seriously though the pod filter has been proven time and time again on dynos to allow more airflow. Obviously this is going to have different results depending on the pod filter used. Don't forget a pod filter is designed more around perfomance and airflow and the OEM paper filter is designed more for filtering dust/debris which usually means its more restrictive.
Have you carried out any airflow logs between the two to see how they differ?

Steve
 
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curtis11 said:
But that pod filter isn't aftermarket it's oem for a honda s2000 so it's oem vs oem
Click to expand...
dame...you are not supposed to name the pod......this just shows Honda uses cheapest possible way to make a pod LOOKED LIKE filter....
 
Hilife said:
I'm offended AND upset!!!


Seriously though the pod filter has been proven time and time again on dynos to allow more airflow. Obviously this is going to have different results depending on the pod filter used. Don't forget a pod filter is designed more around perfomance and airflow and the OEM paper filter is designed more for filtering dust/debris which usually means its more restrictive.
Have you carried out any airflow logs between the two to see how they differ?

Steve
Click to expand...
funny indeed, I have been experimenting pod filter-even back 15 years ago with Honda cars, using SPOON sponge filter vs stock-but you must open the bottom of the filter box otherwise its a restriction. I used to use Gtec, and stop watch..back and forth 0-100 time, the stock filter plus box set up beats SPOON filter by 0.1-0.2 sec. I carried these data every week 3 -4 times thru out 3 years period untill I fed up. I do not BS my findings.

OEM made up its clear air-volume by its filtering surface as I have measured. OEM has more fins. the POD filter can either use foam of more porous 3 layer form(marketing tircks) to gain more flow but the air quality is not as CLEAN as OEM. The dyno test is a static model, I am nothing against it, But the results does not expalin my Gtec and stop watch on real world run. You could argue Gtec and stop watch is not accurate, if so, how come after 10-20 runs, Stock OEM wins. I am taling about CAI vs stock(opened bottom). Nothing to do with engine bay heat soak. What you guys say???me mad???
 
curtis11 said:
Sooo your arguement is surface area or what ?
Click to expand...
all I am saying, physical data shows more surface area =more air filtered/exposed at a same give time = more power.
 
oldcar said:
all I am saying, physical data shows more surface area =more air filtered/exposed at a same give time = more power.
Click to expand...

But aftermarket filters use materials like cotton and foam etc which are so much less restrictive than the OEM paper one. Just because it has a larger surface area doesn't mean it will allow more airflow.
 
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Hilife said:
But aftermarket filters use materials like cotton and foam etc which are so much less restrictive than the OEM paper one. Just because it has a larger surface area doesn't mean it will allow more airflow.
Click to expand...
You are correct in a way...., in this case 71% more area than Pod filter its hard to convice some one likemyself, the Pod is doing a better job. I also noticed RS3 uses similar filter element. But its output is huge 240kw, because of this I dnt think OEM element is not a restriction.
 
You need to log the airflow to see for yourself , or dyno , stopwatch or any other kind of 0-100 gizmo isn't worth a fiddlers fuk
 
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I would think that without the metal mesh the cone filter would perform a lot worse; without the metal fabric reinforcing the structure the cone filter would collapse under the vacuum produced by the induction system (particularly forced induction). A collapsing cone filter would mean collapsing pore spaces, decreasing pore throat diameters and heavily reduced permeability.

Did your Spoon Sponge filters have any reinforcement in them when you carried out your experiments? I would have thought that a sponge/foam filter would be particularly susceptible to pore collapse?

And you carried these experiments out 3-4 times a week for three years and you got fed up? You give up too easy!!
 
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How about this surface area for £8.54! ;) I wonder if that's bigger than standard OEM and the "Pod"

 
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Alex C said:
I would think that without the metal mesh the cone filter would perform a lot worse; without the metal fabric reinforcing the structure the cone filter would collapse under the vacuum produced by the induction system (particularly forced induction). A collapsing cone filter would mean collapsing pore spaces, decreasing pore throat diameters and heavily reduced permeability.

Did your Spoon Sponge filters have any reinforcement in them when you carried out your experiments? I would have thought that a sponge/foam filter would be particularly susceptible to pore collapse?

And you carried these experiments out 3-4 times a week for three years and you got fed up? You give up too easy!!
Click to expand...
Such a geologist haha
 
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I'm sure people have already dyno proven that the s2000 gave gains over the oem filter + airbox.
Plus more surface area doesn't necessarily = more airflow, depends on how permeable the material is as well as area.
 
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AWESOME>>>>>this is it, tell me where to buy it and what part number I would give it a go......thanks
 
Alex C said:
I would think that without the metal mesh the cone filter would perform a lot worse; without the metal fabric reinforcing the structure the cone filter would collapse under the vacuum produced by the induction system (particularly forced induction). A collapsing cone filter would mean collapsing pore spaces, decreasing pore throat diameters and heavily reduced permeability.

Did your Spoon Sponge filters have any reinforcement in them when you carried out your experiments? I would have thought that a sponge/foam filter would be particularly susceptible to pore collapse?

And you carried these experiments out 3-4 times a week for three years and you got fed up? You give up too easy!!
Click to expand...
Yes Spoon had the wire mesh but its mesh patteern has more porous than the S2000 CONE-"POD" filter.....haaaaa
 
There is a YouTube test of Pod v OEM which is measuring effects on various cars.



Ian
 
If this is the reference then jeez... hardly conclusive in context...

<tuffty/>
 
oldcar said:
AWESOME>>>>>this is it, tell me where to buy it and what part number I would give it a go......thanks
Click to expand...

1 x 502221037 @ 8.52 GBP
Bosch Air Filter
for: Mercedes-Benz C Class 2.2 2008

That's the filter I've used. As pictured

Bought from euro car parts
 
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S3AMJ said:
1 x 502221037 @ 8.52 GBP
Bosch Air Filter
for: Mercedes-Benz C Class 2.2 2008

That's the filter I've used. As pictured

Bought from euro car parts
Click to expand...
thanks VERY MUCH..I am going to check it out and count its fins and work out its surface area....stay tune.......VW guys too busy saying yeah we do it for you but on a less busy day----what an excuse......
 
S3AMJ said:
1 x 502221037 @ 8.52 GBP
Bosch Air Filter
for: Mercedes-Benz C Class 2.2 2008

That's the filter I've used. As pictured

Bought from euro car parts
Click to expand...
thanks I will check it out and work out its surface area and of course add a heat shield..........
 
When I had my R32 an slk230 and an C55 we played around a lot with 'pod' and original air cleaners.
Never saw any real gains other than the nice noise.
Im convinced that's all they do is sound good.
To each there own but I'm sure the original S3 box flows more than the car can use.
If it didn't I doubt top speed would ever be reached at full throttle.

Not saying dont do it though. Don't want to start a war of words.
In my current job as an automotive product support engineer we have also trialed aftermarket filters against oem's with no real gains.

The way to prove a gain with the SAME filtering properties is to post up back to back results to prove the point.
 
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S3 OE airbox and filter is know to support pretty much all the power you can muster from a std K04 even with all the bolt ons known to man these days...

Biggest potential restriction in the airbox is the inlet itself but that can be sorted by opening it up and using a piece of 3" (or 4" but its tight) cold air induction hose to act as the feed... I used this setup with a green cotton panel filter on my GT3071 for some time before going to a JR cone as my power requirements grew

<tuffty/>
 
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