Project Farm Air Filter Test!

gathermewool

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I'll be installing Fram Extended Guard filters on both of my Subies when they arrive tomorrow. I'll make sure to stay away from flour!
 

Kage860

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NY
Originally Posted by PowerSurge
Originally Posted by Kage860
https://youtu.be/sJ3L-E-ufYo Great video from great youtube channel comparing brands of air filters. I only wish he would have also tested oem too.
AC Delco is OEM for GM. So....you got your wish. smile
cheers Thanks, I forgot about that.
 
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Kendall, FL
Purolator and WIX did splendidly. But how significant is flour to true Silicon? I don't know but less is still better.
 
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Virginia
Originally Posted by wemay
Purolator and WIX did splendidly. But how significant is flour to true Silicon? I don't know but less is still better.
Well Purolator is 99% per ISO 5011... And Wix is 99.5% per ISO 5011. .. . A lot better than STP blue air filter that is just 90%.
 
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Kendall, FL
Good point bbhero. I think I'll throw a Purolator or OEM back in the VW and remove the K&N now that I'm not going to tune it. But I'd rather the K&N over an STP if the latter specified 90% efficiency.
 
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39
Location
Tennessee
Originally Posted by skip029
I wonder why he did not test Fram Ultra?
I think the filters used in this test were purchased by viewers who support the channel monetarily.
 
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PNW
Originally Posted by slybunda
why k&n let in so much dirt?
Have you ever seen a K&N? It's just a few layers of gauze material. You can see lots of light through them. The oil on the gauze helps trap particles.
 
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13,171
Location
ROCHESTER, NY
I haven't reviewed Bob's original air filter test but as I remember, his test was similar to Project Farm. You be the judge. https://www.bobistheoilguy.com/air-filtration-test/ And of course, this will differ with every filter application. But, if you have a GM truck with the same engine as PF then, this answers the curiosity of which is better even without including the FRAM Ultra or e.g., a Denso or SuperTech.
 
Last edited:

4WD

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Texas
Of course that particle has to touch the oil …
Originally Posted by bbhero
Originally Posted by wemay
Purolator and WIX did splendidly. But how significant is flour to true Silicon? I don't know but less is still better.
Well Purolator is 99% per ISO 5011... And Wix is 99.5% per ISO 5011. .. . A lot better than STP blue air filter that is just 90%.
What are you saying bb ? They don't plan to buy his test jig ? LoL
 
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USA
I LOVE Project Farm. Sure the tests aren't always 100% perfectly controlled scientific but many times they are good enough to be accurate.
 
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Location
Richmond, VA area
It's a cool test/setup he did...straightforward. Results of course make sense - flow and filtering are inversely proportional. I use a K&N and am glad I don't dump flower on top of it...hahahaha It's a good test but the real-world conditions I drive in are quite a bit different. My UOAs always look fine and my intake track behind the filter is always clean to the touch so clearly, while not filtering as well as a paper filter (duh) it does well enough for me. Also, I dig the 0-60 runs - the K&N works, it's not BS and for those of us tuning/trying to extract as much as we can out of our cars, it matters.
 
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