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K&N intake kit?

Discussion in 'Performance and Tuning' started by jwhelan, Sep 25, 2009.

  1. Sep 25, 2009 at 4:36 AM
    #1
    jwhelan

    jwhelan [OP] Well-Known Member

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    Maybe a dumb question here but, what kind of performance benefit is there to the full K&N system?
     
  2. Sep 25, 2009 at 6:06 AM
    #2
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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  3. Sep 25, 2009 at 6:07 AM
    #3
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    4.10 gears, sliders, and lots of buttons.
    Everything that He said ^^^^^^^^^^^
     
  4. Sep 25, 2009 at 6:08 AM
    #4
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    5100's all on fours
    However it is great in the "empty the wallet" performance area
     
  5. Sep 25, 2009 at 6:23 AM
    #5
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    4.10 gears, sliders, and lots of buttons.
    Again, What He said ^^^^^^^^^
     
  6. Sep 25, 2009 at 12:10 PM
    #6
    XrunnIT

    XrunnIT Well-Known Member

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    I very much enjoy my K&N intake.

    That is the intake I'm running, and I currently run low-mid 13's in the 1/4 mile on street tires. Intake alone I dropped .3 or so seconds off my 1/4 mile back when i was bone stock.

    I'm curious as to why people claim no gains. If they are basing those on a butt dyno, then i would take that with a grain of salt.

    Is there any documented proof of before and after with no gains?

    It is more free flowing then the stock intake, which WILL net you hp gains. It is no more restrictive then the TRD or any other aftermarket intake. Only difference is an open filter rather then sealed box. When at WOT the IAT between a TRD and K&N will be very similar, as both will pull temps close to ambient when under WOT

    Only other way that the K&N would not provide gains, is if the MAF accuracy on it was bad and the ECU wasn't correcting for it. Which i can assure you is not the case. The MAF accuracy is very good on the K&N.
     
  7. Sep 25, 2009 at 12:17 PM
    #7
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    I dynoed a K&N on the 3.4 and the 4.0 and saw no gains.
     
  8. Sep 25, 2009 at 12:21 PM
    #8
    XrunnIT

    XrunnIT Well-Known Member

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    The 3.4L I believe. I have never heard anything good about that model of the K&N CAI, lots of bad reviews about that one.

    Could you post the dyno chart for the 4.0L one (before & after)?

    I've attached two different dynos for the K&N intake, along with the conditions that the pulls were done in. Both dyno's showing gains.
     

    Attached Files:

  9. Sep 25, 2009 at 12:33 PM
    #9
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Those are from K&N?
    Mine are all in storage. Im going down on the 3rd and I will try and dig them up.
     
  10. Sep 25, 2009 at 12:35 PM
    #10
    XrunnIT

    XrunnIT Well-Known Member

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    Yes, those are from K&N.
     
  11. Sep 25, 2009 at 12:37 PM
    #11
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Ok......I have never seen a dyno sheet that was anywhere close to what they really gained, other than from Gadget. AirAid showed me a similar dyno reading as K&N's, yet when I dynoed their intake, NO gain. Not sure you can put all your faith in what they print. Same with those dynos of the throttle body spacers. I was under the impression you dynoed the intake.
     
  12. Sep 25, 2009 at 12:38 PM
    #12
    98tacoma27

    98tacoma27 is gooder 'en chicken Moderator

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    The gain seems to be at the top of the rpm range. Most DD's never reach that.
     
  13. Sep 25, 2009 at 6:23 PM
    #13
    jwhelan

    jwhelan [OP] Well-Known Member

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    Good info Chris, sounds like a waste of money, what filter do you run?
     
  14. Sep 25, 2009 at 6:28 PM
    #14
    mwild

    mwild I CANT SPELL SO DONT BITCH

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    i lost about 3 mpg and gain nothing but the sound
     
  15. Sep 25, 2009 at 6:30 PM
    #15
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    4.10 gears, sliders, and lots of buttons.
    I run the OEM filter. Seems to flow well, and it filters out the dirt very good.
     
  16. Sep 25, 2009 at 6:36 PM
    #16
    NumNutz

    NumNutz One of the original 7928

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    Lots.
    That's called right foot syndrome. I suffer from it too.
     
  17. Sep 25, 2009 at 6:40 PM
    #17
    mwild

    mwild I CANT SPELL SO DONT BITCH

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    im back to oem to and now i get 18-19 mpg again
     
  18. Sep 25, 2009 at 7:15 PM
    #18
    jwhelan

    jwhelan [OP] Well-Known Member

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    So even the K&N filter is of no benefit?
     
  19. Sep 25, 2009 at 7:24 PM
    #19
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Its re useable, but my oil samples, when using a K&N filter, had silica levels maxed out.
     
  20. Sep 25, 2009 at 8:51 PM
    #20
    jwhelan

    jwhelan [OP] Well-Known Member

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    Not sound stupid but, what does that mean?
     
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