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Does a K&N air filter do anything for a 348?

Discussion in 'Technical Q&A' started by Husker, Mar 10, 2004.

  1. Husker

    Husker F1 Veteran
    Silver Subscribed

    Dec 31, 2003
    8,178
    western hemisphere
    I have always heard a 5% gain in horsepower when you install a K&N. Was wondering if you 348'ers have any experience with this and what you opinion is. Thanks!
     
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  3. JSinNOLA

    JSinNOLA F1 World Champ
    Sponsor Lifetime Rossa

    Mar 18, 2002
    14,876
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    John
    :D It filters particles from the air :D

    Couldn't resist ;)
     
  4. Husker

    Husker F1 Veteran
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    Dec 31, 2003
    8,178
    western hemisphere

    Thanks John. That definitely shed some light on my question! :)
     
  5. Ron328

    Ron328 F1 Rookie
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    Mar 10, 2003
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    Some say there's a gain of 5-10 horses; others dispute that.

    More important though, K&N filter apparently sucks more
    "dirt"particles into your engine. This is why I decided against it.
     
  6. davey_jones

    davey_jones Formula Junior

    Sep 28, 2002
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    Dave

    dittos on that
     
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  8. snj5

    snj5 F1 World Champ

    Feb 22, 2003
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    Russ Turner
    At least in my 3.2, on the dyno, the paper element cost about 10 hp and the K&N cost about 5 hp over no air cleaner. Would imagine the 348 would be similar.
    best
    rt
     
  9. f355spider

    f355spider F1 World Champ
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    May 29, 2001
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    Definitely makes some more intake noise. Any other aspects will be hotly debated on both sides.... :)

    BTW, I have one on my 328GTS
     
  10. Ksullender

    Ksullender Formula Junior

    Sep 3, 2003
    886
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    I found a greater increase in my performance when I installed an aluminum shift knob!
     
  11. Tifoso1

    Tifoso1 F1 Rookie

    Nov 18, 2003
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    Anthony C.
    They dig a bigger hole in your wallet :)
     
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  13. Darolls

    Darolls F1 Veteran
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    Jul 2, 2003
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    Sparky
    A KN air filter will not give you a noticable increase in performance.

    What it will give you, is a longer lasting filter, but you'll have to buy the 'rejuvenation' kit for it to do so.

    In my estimation, KN over-evaluates it's product!
     
  14. f355spider

    f355spider F1 World Champ
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    May 29, 2001
    17,104
    USA
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    Hugh G. Rection
    Definitely makes some more intake noise. Any other aspects will be hotly debated on both sides.... :)

    BTW, I have one on my 328GTS
     
  15. paulie_b

    paulie_b F1 Veteran
    Consultant Owner

    Jan 13, 2003
    6,792
    Jupiter, FL
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    Paul Bianco
    I have used them in my TR and 360. Technically, not sure of the advantages other than what they advertise.
     
  16. 348paul

    348paul Formula 3

    Dec 27, 2002
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    Paul Hill

    Hey Ken - Can I quote this on my website? :)

    Paul
     
  17. Ksullender

    Ksullender Formula Junior

    Sep 3, 2003
    886
    USA
    LOL, sure Paul. If you like, I can include before and after stats and a pic of the me next to the car with before and after pics of the shift knob!
     
  18. Mark 328

    Mark 328 Formula Junior

    Nov 6, 2003
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    Orange, Ca
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    Mark Foley
    I wonder what a titanium knob and prancing horse tire valve caps may do?
     
  19. AEHaas

    AEHaas Formula 3

    May 9, 2003
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    Ali E. Haas
    A fresh wash and wax will probably give back 5 HP, especially if you also do the bottom of your car as I do from time to time. (I know, get my head examined).

    aehaas
     
  20. davey_jones

    davey_jones Formula Junior

    Sep 28, 2002
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    Dave
    My car usually drives better after a good bath.
     
  21. Octane116

    Octane116 Rookie

    Nov 3, 2003
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    Cliff M.
    Is the bath for you or the car?
     
  22. Octane116

    Octane116 Rookie

    Nov 3, 2003
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    Near Milwaukee, WI.
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    Cliff M.
    ou, ou, I just realized that I have a brand new aluminum shift knob going on my TR, and will be rolling it out this spring with some other changes too. I will not be able to trace the real contributor to any performance improvement although I believe the real change will be from the low restricition Borla exhaust system I installed. NO CATS and nicer plumbing!
     
  23. davey_jones

    davey_jones Formula Junior

    Sep 28, 2002
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    Dave

    I only take a bath once a week...
     
  24. Ksullender

    Ksullender Formula Junior

    Sep 3, 2003
    886
    USA
    Once a week whether you need it or not?
     
  25. sparta49

    sparta49 F1 Veteran
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    Mar 3, 2001
    7,794
    LA
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    Frank
    The valve caps are worth at least a 15 horsepower gain by themselves with a titanium shift knob I'd say at least 35 hp gain :) Now if you really want to make it fast switch to Italian Air in the tires :)
     
  26. AR!

    AR! Formula Junior

    Apr 8, 2004
    974
    Berlin, Germany
    I was informed that the K&Ns are likely to contaminate your "Hitzdraht-Anemometer" (this is the German word, I am talking about the device that measures how much air is streaming into your engine ...) with silicon. This in consequence will affect its function.

    So I decided against K&Ns.
     
  27. Smiles

    Smiles Moderator
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    Nov 20, 2003
    14,177
    Pittsburgh, PA
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    Matt F
    I bathe once per K&N Filter post.

    Unfortunately, I'm bathing constantly.

    Please post dyno results!

    --Matt
     
  28. gabriel

    gabriel Formula 3


    LOL!

    Well, if any HIPO air filtration device really worked VS the downside, then every manufacturer would already have them as original.

    I suppose if you take off all filtration, you might pick up an incremental increase in HP.

    But, I think you are asking if there is any downside to the modification.

    Well, if it's dusty or sandy climate, of course there is. At the 1/4 mile , there is no filtration at all.

    Sooooo... If the climate is favorable, I'd use one! Lots of sand here in Florida, so I don't use one, as much as I'd like to.

    They do have a great sound when that intake gulps air!
     

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