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Thread: Air cleaner opinion

  1. #21
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    Here’s an interesting test from a neutral party;https://www.youtube.com/watch?v=sJ3L-E-ufYo

    Looks like you need to decide between filtering and slight performance gains. :https://www.youtube.com/watch?v=GS69owXpGdY&t=433s
    Last edited by KeyWasted; 04-25-2022 at 09:02 PM.

  2. #22
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    Oh shit it is "rigged", going for a 1000-mile trip in the AM, taking out my filter next week, hopefully, it won't let me down, it is an OEM, and was not listed, scary.

  3. #23
    Senior Member taxfree4's Avatar
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    Best comparison would be 2 identical bikes with identical fluids, exact same mileage, 20,000 mile trip, side by side, same route, analyze the oil.
    Equitare solum equitare amplius

  4. #24
    Senior Member F6Dave's Avatar
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    Filter Quiz

    I have some friends who are K&N 'true believers'. Their loyalty seems to be based more on faith than on facts. When confronted with data showing how poorly their filters work, they usually blame it on 'rigged tests' and 'greedy manufacturers'. I've wondered what drives their zealotry, and found a quiz that might offer some clues.

    Air Filter Quiz

    Question #1 - Which filter pictured below has more pleats?
    A. The filter on the left (Honda).
    B. The filter on the right (K&N).
    C. The lighting distorts the pleats. The photos should be taken in the air box, where it's dark.



    Question #2 - Which filter has the most surface area?
    A. The filter with 48% more pleats.
    B. The filter with fewer pleats.
    C. It's a trick question. The surface area is constantly changing due to temperature, humidity, and road conditions.

    Question #3 - How is it possible for a filter with less surface area to flow more air?
    A. It has larger holes (pores) in the filter media.
    B. The filter is removed from the air box.
    C. A special oil lubricates the air so it flows faster.

    Question #4 - How do larger holes (pores) affect filtration?
    A. Larger holes allow more dust and dirt to enter the engine.
    B. Dust and dirt won't hurt anything as long as there's plenty of air.
    C. What's filtration?

  5. #25
    Senior Member willtill's Avatar
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    21 years Army (retired)
    ...been everywhere, seen everything, done almost everything.

    IBA 80537

  6. #26
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    Quote Originally Posted by willtill View Post
    Is it OK if I sit here and watch? Can I have some of your popcorn?

  7. #27
    Senior Member taxfree4's Avatar
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    Quote Originally Posted by F6Dave View Post
    I have some friends who are K&N 'true believers'. Their loyalty seems to be based more on faith than on facts. When confronted with data showing how poorly their filters work, they usually blame it on 'rigged tests' and 'greedy manufacturers'. I've wondered what drives their zealotry, and found a quiz that might offer some clues.

    Air Filter Quiz

    Question #1 - Which filter pictured below has more pleats?
    A. The filter on the left (Honda).
    B. The filter on the right (K&N).
    C. The lighting distorts the pleats. The photos should be taken in the air box, where it's dark.



    Question #2 - Which filter has the most surface area?
    A. The filter with 48% more pleats.
    B. The filter with fewer pleats.
    C. It's a trick question. The surface area is constantly changing due to temperature, humidity, and road conditions.

    Question #3 - How is it possible for a filter with less surface area to flow more air?
    A. It has larger holes (pores) in the filter media.
    B. The filter is removed from the air box.
    C. A special oil lubricates the air so it flows faster.

    Question #4 - How do larger holes (pores) affect filtration?
    A. Larger holes allow more dust and dirt to enter the engine.
    B. Dust and dirt won't hurt anything as long as there's plenty of air.
    C. What's filtration?
    Please, save mankind:

    https://www.knfilters.com/

    https://powersports.honda.com/

    But remember ", "A small temperature change or a small change in humidity can cause the mass of a paper filter to change by several grams."

    Why can't people who don't want to blow for the extra dough just say " I don't want to spend the extrs $" and let it lie
    Last edited by taxfree4; 04-27-2022 at 06:38 PM.
    Equitare solum equitare amplius

  8. #28
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    I’m never changing mine so there.

  9. #29
    Senior Member taxfree4's Avatar
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    Quote Originally Posted by Ewreck View Post
    I’m never changing mine so there.

    I just bought K&N stock
    Equitare solum equitare amplius

  10. #30
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    This is fun like an oil thread. But SpencerPJ, back to your original post, yes the filter is dirty and needs replacing.

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