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K&N filters

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by JTB, Nov 8, 2001.

  1. JTB

    JTB 1/2 ton status

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    Do the K&N's really need to be oiled? I have heard yes and no. What is best?
    Jeff
     
  2. slider

    slider 1/2 ton status

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    If it is dry how will it catch the dirt? The oil holds the dirt particles to the fibers. Clean it and use their oil only. Never use compressed air to blow it off. It will screw up the fibers
     
  3. HarryH3

    HarryH3 1 ton status Author

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    Yes! The new ones come already oiled. But you'll need their recharge kit to clean and oil a used one properly.


    <font color=black>HarryH3 - '75 K5</font color=black>
    <a target="_blank" href=http://www.angelfire.com/super/ThunderTruck>www.angelfire.com/super/ThunderTruck</a>
    It's a great day to be alive...
     
  4. Burt4x4

    Burt4x4 3/4 ton status

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    Yes they do need to be oiled! The oil is one of the main ingreadiance to the K&amp;N filter. I oil mine whenever it starts looking dry or caked with dirt. I only clean it once a year. K&amp;N says the dirt and oil combo acctually helps the air flow! How? I don't know.....

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
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  5. Jonathan

    Jonathan 1/2 ton status

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    I don't think it helps air flow, but it is supposed to help filtration.

    77 Blazer, 350, NP203, K&N, 31-inch Cooper Discoverers
    <a target="_blank" href=http://community.webshots.com/user/jonathandwill>http://community.webshots.com/user/jonathandwill</a>
     
  6. RedDwarf

    RedDwarf 1/2 ton status

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    K&amp;N is one of the biggest gimmicks in automotive history.

    Still Poundin' "pavment" after all these years!!! [​IMG]
     
  7. Can Can

    Can Can Pusher Man Staff Member Super Moderator

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    Funny you should say that........One mechanic buddy I know says that the improvement people feel when they install a K&amp;N filter is a self-fulfilling prophecy. He claims they "feel" an improvement because they spent a chunk of change so they swear it makes a difference, kinda like a placebo effect.

    Another mechanic I know isn't sure if a K&amp;N will increase performance, but he SWEARS that quite a few vehicles got 1 or 2 MPG better after he put one in.

    Myself, I'm not sure. I had a K&amp;N in a 91 shortbox Chev 1/2 ton. I'm pretty sure I "felt" an improvement in power at higher RPMs, but I can't recall getting any further on a tank of gas. Of course, that could be because I seemed to have a bad habit of drving at high RPMs[​IMG].......



    <font color=blue> NEVER FORGET, NEVER FORGIVE, NEVER SURRENDER<font color=blue>
     
  8. slider

    slider 1/2 ton status

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    Well Mr Gimmick have you done a flow test on a K&amp;N filter verses a regular air filter. Probley not. Get access to a flow bench and then see the results. Better yet how is 10 hp on a dyno just by filter replacement. Now let me guess your going to say I am brainwashed also, Ya right
     
  9. Blazer_Boy

    Blazer_Boy 1/2 ton status

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    How to Build Max Performance Chevy Small Blocks on a Budget!
    By: David Vizard

    Page 111..."I highly recommend the use of K&amp;N filters because they have a much higher flow capacity than any paper or foam material I've flow tested. In addition to high flow, they also have a high filtration capacity and can hold several thousand percent more dirt before flow is affected. This filter (which is used by Rolls-Royce) should be considered the first choice for a performance application."

    <a target="_blank" href=http://www.geocities.com/bigkern76>http://www.geocities.com/bigkern76</a>
     
  10. Can Can

    Can Can Pusher Man Staff Member Super Moderator

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    Slider- at what RPMs do you get a ten HP increase? Is it through the whole power band? I'm just curious because any increase in HP over about 4000 RPMs seems like it really wouldn't matter with a K5.

    Just my opinion, of course, but I HATE how manufacturers quote factory outputs like 300 HORSEPOWER!!!!!! and then tell you that that figure is reached at 5500 RPMs. How often does the average driver hit 5500?

    Oh well, just rambling........



    <font color=blue> NEVER FORGET, NEVER FORGIVE, NEVER SURRENDER<font color=blue>
     
  11. Can Can

    Can Can Pusher Man Staff Member Super Moderator

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    And BlazerBoy, I'm not trying to be a dink, but notice how the author says they're good in a "performance application"? I'd be really curious to see just how much of a difference you'd see with a daily driver 350.

    Once again, just trying to figure this out. I'm not trying to stir the sh!t[​IMG]........



    <font color=blue> NEVER FORGET, NEVER FORGIVE, NEVER SURRENDER<font color=blue>
     
  12. Blazer_Boy

    Blazer_Boy 1/2 ton status

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    Haha, well of course. How much air are gonna suck down when you're out gettin' grocies, lol. My main point is why keep constantly paying something that has less filtering abilty, flow, and longevity when you can get a K&amp;N and been done with it. Its not like its going to hurt your engine by having cleaner and more air.

    Now if we're talking those additive "miracles" they sell on late night TV or that little fan doohickey that goes in your air cleaner, thats another story.

    <a target="_blank" href=http://www.geocities.com/bigkern76>http://www.geocities.com/bigkern76</a>
     
  13. JunkYardCrawler

    JunkYardCrawler 1/2 ton status

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    i like mine. i don't really know about a powerincrease but i know i am sucking down more air.

    Going nowhere everybody is a Moto Psycho
    Got my wheels in motion and i got a path to beat
     
  14. fr8train

    fr8train 1/2 ton status

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    Ok this all good when the K&amp;N is new and the stock is new. Has anyone every flow tested them at 3k, 5k, and 8k. Honestly how many of you religous change your daily driver until it crosses your mind? I have to keep a record i.e. every time I fuel up I log the miles and change my oil and filters at real traveled miles.

    <a target="_blank" href=http://community.webshots.com/user/thatguydrew23>http://community.webshots.com/user/thatguydrew23</a>
    "JEEP....SO GIRLY, BARBIE HAD TO HAVE IT"
     
  15. Thunder

    Thunder 3/4 ton status

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    I like my K&amp;N. Over the years I have had it I have more than payed for it by not having to buy paper filters. I live in very dusty country and paper filters got plugged up pretty fast. Also the K&amp;N filters the air better than any paper filter so my engine gets cleaner air for longer life. Weather they flow better or not doesn't matter to me. I like the fact that they save my money and are good for my engine
    Here's some good info on the K&amp;N =<a target="_blank" href=http://performanceunlimited.com/illustrations/filtercompare.html>K&amp;N info</a>
    And yes the K&amp;N filter must be oiled to work.

    <a target="_blank" href=http://coloradok5.com/gallery/Thunders-Blaze>http://coloradok5.com/gallery/Thunders-Blaze</a>
    <font color=blue>NEVADA: Where the pavement ends, and the West begins.</font color=blue>
     
  16. slider

    slider 1/2 ton status

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    It is from 1500 rpm up.
     
  17. COOTER

    COOTER Registered Member

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    YOU SAVE MONEY IN THE LONG RUN.THEY ARE EASY TO CLEAN WHEN FULL OF MUD TO.I DIDNT FEEL ANY HP INCREASE WHEN I PUT MINE ON BUT I SAW THEM PUT A K&amp;N FILTER AND THE K&amp;N HIGH FLOW TUBE ON A CAMARO ON THAT CRANK N CROME.THE DYNO SHOWED A GOOD 22 HP INCREASE.HP COST $ AND K&amp;N FILTERS DONT COST THAT MUCH.
     
  18. txbartman

    txbartman 1/2 ton status

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    I had been looking into getting a K&amp;N, or at least an open filter (I still have the stock snorkel) but I had heard bad things about open elements when off road. And, considering how my engine compartment usually looks after a trip, I was afraid I would be spending a lot to clean it frequently.

    But, I think it was one of this months mags had a pretty good trick I think I will use. For most driving, many trail runs, and shows, leave the air cleaner open just like normal. But, when really getting into the gunk (muddin' and other stuff where you KNOW you are going to coat your engine) cover the air filter the top of a set of pantyhose. It will still let air flow to the filter and be better than the stock snorkel, but it will help stop the big stuff (mud) from getting to the filter.

    I think this little trick could help reduce the cleaning effort. Of course, I would put mine on the night before the run in the dark and not lift my hood for the other froaders to see! [​IMG]

    Brian
    Check out <a target="_blank" href=http://tx85gmcguy.alloffroad.com>My Jimmy</a> with all her projects!
     
  19. Burt4x4

    Burt4x4 3/4 ton status

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    I'm with Thunder on this one!!
    I use to go thru paper elements EVERY wheelin trip in the summer. Dusty trails are VERY common here in the West Seirias. I've heard all the hype on what they can do for your intake but what sold me was REUSABLE, WASHABLE last the life of the motor if properly taken care of!! Heck I can do that I say!! So for several years now I have used the K&amp;N Filter and ain't never trurnin back to thoes shabby paper deals!!!

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
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  20. sluggo45acp

    sluggo45acp 1/2 ton status

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    Brian (brain), I havnt had any proublems with my K&amp;N getting to nasty (I did have to clean it after Gilmer but that was because of the mud holes I kept running thru) You can get a pre filter for the K&amp;N it a foam style element which should help. I plan on putting one on myself.

    See ya tommorow (what time is breakfast)[​IMG]
    Butch

    <font color=red>All that is necessarry for evil to triumph is for good men to do nothing.<font color=red><font color=blue>Edmund Burke<font color=blue>
     

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