Desnorkeling Nonsense

Discussion in 'Mechanics Garage' started by ksoholm, Aug 9, 2017.

  1. ksoholm

    ksoholm New Member

    Country:
    United States
    Joined:
    Jan 23, 2017
    Messages:
    244
    Likes Received:
    32
    Trophy Points:
    28
    Ladies, Lads,

    I'm all for people spiting their faces by cutting their noses off, so if you want to "fix" your bike until it's broken by performing various modifications you've read about on the internet, the effects of which are unproven, but which you do because someone you don't know at all did it and claims benefit, well, knock yerself out. I'm a plant-corn-eat-corn kind of guy.

    For the rest of us, de-snorkeling and removing the intake flapper valve from your airboxes is shooting yourself in the foot; Honda carefully designed these things to counteract natural torque curve dips. If you do these things and think they gave you more top-end, you're wrong; it may have hollowed out your midrange, making your top-end seem stronger. Here's one of many technical articles explaining airbox tuning:
    https://motorcycleinfo.calsci.com/Airboxes.html
     
    Ghost_Rider, Scubalong and dhinson66 like this.
  2. zombie

    zombie New Member

    Country:
    Canada
    Joined:
    Jul 29, 2012
    Messages:
    575
    Likes Received:
    81
    Trophy Points:
    28
    Location:
    Guelph Ontario
    Don't know if it made any difference at all to my bike, sounds awesome now though so I'm leaving it that way. Link didn't work by the way, told me it was unsecure.
     
  3. PawnBoy

    PawnBoy New Member

    Country:
    Canada
    Joined:
    Jun 23, 2013
    Messages:
    283
    Likes Received:
    24
    Trophy Points:
    18
    Location:
    Waterloo, ON
    Map
    Nice article. I didn't have any trouble reaching it.
     
  4. thtanner

    thtanner New Member

    Country:
    United States
    Joined:
    Oct 8, 2016
    Messages:
    210
    Likes Received:
    143
    Trophy Points:
    43
    Location:
    Orange County, CA
    Map
    Link worked great.

    I have always preached this. Can't stand when people do mods and have no idea what they actually do. "I read on the Internet it's better, with no real justification, so let me start ripping stuff off my bike!"
     
    Ghost_Rider and ksoholm like this.
  5. Samuel

    Samuel Member

    Country:
    United States
    Joined:
    Aug 15, 2006
    Messages:
    799
    Likes Received:
    307
    Trophy Points:
    63
    Location:
    Los Angeles County
    Map
    Whether you mod the hell out of your bike or leave it bone stock, I don't give a rat's ass - I'll still ride with you (that is, unless you're an ahole...)...
     
    wiremanjon, anthonygg13, Lint and 2 others like this.
  6. tinkerinWstuff

    tinkerinWstuff Administrator Staff Member

    Country:
    United States
    Joined:
    Oct 5, 2009
    Messages:
    7,680
    Likes Received:
    32
    Trophy Points:
    78
    Location:
    Colorado Front Range
    Map
    They hand out engineering degrees on the internet ya know
     
    Lint likes this.
  7. NorcalBoy

    NorcalBoy Member

    Joined:
    Aug 29, 2007
    Messages:
    5,423
    Likes Received:
    546
    Trophy Points:
    113
    Location:
    Desert Southwest
    Map
    There's always one.
     
    CandyRedRC46 likes this.
  8. NorcalBoy

    NorcalBoy Member

    Joined:
    Aug 29, 2007
    Messages:
    5,423
    Likes Received:
    546
    Trophy Points:
    113
    Location:
    Desert Southwest
    Map
    You must know somebody at Honda. I believe they designed all this shit to get past regulations.....back in the day, and even now, running no airbox at all is not uncommon. Depends heavily on the application. I love it when it's, "don't listen to the internet", then send a bunch of links to sites on the internet to make a point. Priceless....sounds a lot like our president.
     
    Shmerick likes this.
  9. Allyance

    Allyance Insider

    Country:
    United States
    Joined:
    Nov 20, 2013
    Messages:
    3,414
    Likes Received:
    344
    Trophy Points:
    128
    Location:
    East Bay, California
    Map
    It can't that bad!!
     
    anthonygg13 likes this.
  10. Ghost_Rider

    Ghost_Rider Active Member

    Country:
    United States
    Joined:
    Oct 10, 2008
    Messages:
    493
    Likes Received:
    28
    Trophy Points:
    28
    Location:
    LA & Utah
    Map
    I suggest that we first pre-screen all threads and posts through Norkelboy*. Since he is the Supreme Leader of all things knowledge, and what is permissible to say and think, we REALLY need someone like him to deem which threads and posts are worthy of his intelligence before submission. I also suggest changing the site from VFRWorld to Norkelboy's Wide World of Himself. That way he can then make threads about the weight savings of his new titanium bolts and blog about his exotic silk riding underpants from Singapore...all uninterrupted by us simpletons. On second thought, it may even be easier on him if we resort to self-banning ourselves immediately. Who's with me?
    :Ban:

    *honors to BB
     
    James Bond, Lint, dhinson66 and 3 others like this.
  11. CandyRedRC46

    CandyRedRC46 Member

    Country:
    United States
    Joined:
    Feb 3, 2009
    Messages:
    3,503
    Likes Received:
    65
    Trophy Points:
    63
    Location:
    Orlando Florida
    Map
    Lol I swear everyone of your posts, its always the same thing... You just go so far out of your way to attack people that like modifying their bikes. Why are you so overly abrasive? What are you so upset about kristhian? Give it a rest man. You're over here spouting off about all these things you claim, like they are proven facts. Like Norcal said, the flapper and snorkel are just for noise reduction, nothing more, nothing less. Removing them does pretty much nothing but add some noise and placebo. It has been shown over and over again on the dyno, no huge gains, no huge dips, just more noise, which some people enjoy. Anyways, just so I am not another one of those guys spouting off about all these "facts" here is an oldie but a goody from veefer800canuck circa 1999:


    "From: DynoWorks@aol.com [mailto:DynoWorks@aol.com]
    Sent: Monday, 29 March 1999 5:20 PM
    To: vfr@cs.wisc.edu
    Subject: 800 snorkel dyno test (mostly data)


    Hello list ...

    Had the opportunity to do a back to back dyno test on the VFR800. We'll let
    the numbers tell the story.

    Dynojet Model 150 Chassis Dynamometer
    Eastside Harley Davidson, Bellevue, Washington
    DYNORUN #1, baseline, 4th gear roll-on - 3-27-99, 3:17PM
    DYNORUN #5, no snorkel, 4th gear roll-on - 3-27-99, 3:22PM

    DYNORUN #1 DYNORUN #5
    RPM SAE hp SAE hp
    3500 28.3 28.8
    4000 32.1 31.7
    4500 35.4 35.4
    5000 39.8 40.3
    5500 45.2 46.1
    6000 54.4 55.3
    6500 62.6 63.2
    7000 69.6 69.9
    7500 75.6 75.5
    8000 81.1 information not available
    8500 86.6 87.1
    9000 90.0 91.0
    9500 91.6 92.7
    10000 93.2 93.8
    10500 92.9 94.2
    11000 90.3 91.6
    11500 88.8 89.6

    Magnifying the resolution of the 500 rpms nearest the hp peak follows

    10000 93.2 93.8
    10100 93.4 94.1
    10200 93.5 94.3
    10300 93.6 94.6
    10400 93.3 94.6
    10500 92.9 94.2

    Magnifying the resolution of the 1000 rpm range nearest torque peak follows

    RPM SAE ft-lb SAE ft-lb
    8100 53.4 53.3
    8200 53.4 53.4
    8300 53.6 53.6
    8400 53.6 53.7
    8500 53.5 53.8
    8600 53.4 53.8
    8700 53.2 53.7
    8800 53.0 53.6
    8900 52.8 53.4
    9000 52.5 53.1

    Testing conditions: 29.66 in.Hg. absolute barometric pressure, Vapor
    pressure .44 in. hg., ambient air temperature 49.5 deg. F. Partly cloudy.
    All stock '98VFR800FI, 3,273 miles.

    Subjective comment: Noticeably louder intake noise. Doesn't sound like a
    sewing machine anymore. Changes the character of the engine. Feels raw,
    sharper edged. I will be leaving the snorkel out for now.

    Wayne Chan, WMRRA/OMRRA #326"
     
    anthonygg13, Samuel and NorcalBoy like this.
  12. NorcalBoy

    NorcalBoy Member

    Joined:
    Aug 29, 2007
    Messages:
    5,423
    Likes Received:
    546
    Trophy Points:
    113
    Location:
    Desert Southwest
    Map
    Empirical data trumps bullshit and sniveling once again......whining is so unbecoming.
     
    anthonygg13 likes this.
  13. NorcalBoy

    NorcalBoy Member

    Joined:
    Aug 29, 2007
    Messages:
    5,423
    Likes Received:
    546
    Trophy Points:
    113
    Location:
    Desert Southwest
    Map
    I'm the paint, you're the 'possum. Simpleton.
     
    anthonygg13 likes this.
  14. tinkerinWstuff

    tinkerinWstuff Administrator Staff Member

    Country:
    United States
    Joined:
    Oct 5, 2009
    Messages:
    7,680
    Likes Received:
    32
    Trophy Points:
    78
    Location:
    Colorado Front Range
    Map
    Two strokes should just rip that pesky ugly expansion chamber off too. It's just the government trying to ruin our fun!
     
  15. thtanner

    thtanner New Member

    Country:
    United States
    Joined:
    Oct 8, 2016
    Messages:
    210
    Likes Received:
    143
    Trophy Points:
    43
    Location:
    Orange County, CA
    Map
    Nobody said they wouldn't ride with anyone because of it. That was an odd reaction.

    Everyone sounds so.. defensive. It's a proven noise maker. I think (i.e. opinion) it's silly to do that to your bike just for the simple act of making noise. It's like putting a playing card in your spokes of your bicycle. I guess the same can be said for exhausts but most actually help produce more power, and smooth VTEC curves... (8th gen anyways.) I still have my stock exhaust on, the Staintune is gathering dust. I should change that.

    To each their own.
     
  16. Samuel

    Samuel Member

    Country:
    United States
    Joined:
    Aug 15, 2006
    Messages:
    799
    Likes Received:
    307
    Trophy Points:
    63
    Location:
    Los Angeles County
    Map
    Some say I'm an odd person... ;) The point I was trying to make with that (odd) statement is that I don't think it's really a big deal, at least not big enough a deal to talk shit about fellow enthusiasts/riders who decide to mod their bikes Or decide to leave them stock, either way.

    I think I agree that it seems silly to remove a snorkel or mod the flapper "just for the simple act of making noise" - is there anyone here or on VFRD who did that just to make more noise? I Know that that wasn't My intention or goal (and yes, it's debatable whether an increase in noise is all that those mods accomplish). In fact, one of the reasons I switched from a Delkevic to a Yoshimura was to Quiet down my bike a bit.

    I think it's a little "odd" that you got yourself a Staintune but are still running the stock exhaust... haha ;)

    And yes, To Each Their Own (Suum Cuique) is what I've been saying since I joined here and over at VFRD... Some people just don't seem to subscribe to that...
     
  17. CandyRedRC46

    CandyRedRC46 Member

    Country:
    United States
    Joined:
    Feb 3, 2009
    Messages:
    3,503
    Likes Received:
    65
    Trophy Points:
    63
    Location:
    Orlando Florida
    Map
    Don't be silly, a two stroke expansion chamber is not a noise reduction device... It actually does, what those are falsely claiming, the airbox does...
     
  18. OOTV

    OOTV Member

    Joined:
    Aug 20, 2011
    Messages:
    6,428
    Likes Received:
    914
    Trophy Points:
    143
    Location:
    Anaheim, Ca.
    I did the lemming thing and removed the snorkel and flapper and found what most of us are saying, increase in noise level and not much else. I returned both to stock condition, as this was on my commuter (6 Gen) and I felt the extra noise was not something my neighbors, or even strangers needed to hear, especially if when leave early for work. Besides, if I want to make noise, I have my Ducati for that!

    I did however, remove the PAIR valve system as it does impair (no pun intended) the auto tuning features of the RB and PCV devices. Dynojet actually told me when I inquired about it, that you have to disable or remove it when having your bike Dyno -Tuned, so in regards to that system, it has been yanked.
     
  19. OOTV

    OOTV Member

    Joined:
    Aug 20, 2011
    Messages:
    6,428
    Likes Received:
    914
    Trophy Points:
    143
    Location:
    Anaheim, Ca.
    So what the purpose of the expansion chamber on my Bong?! Did I fall for a marketing scam?
     
    A.M and CandyRedRC46 like this.
  20. Ghost_Rider

    Ghost_Rider Active Member

    Country:
    United States
    Joined:
    Oct 10, 2008
    Messages:
    493
    Likes Received:
    28
    Trophy Points:
    28
    Location:
    LA & Utah
    Map
    My take from this thread is that people need to use caution before just ripping stuff off hoping they are unleashing a hidden 'busa. First understand the benefits/consequences of each item they are removing, before they just start tearing if off of their brand new bike because they heard other people did the same. Especially since they might be doing more harm than good (if any good) in the first place and now their bike runs like poop. The numbers that you posted are from an older non-VTEC 5th gen, and I would be curious how a 8th gen VTEC motor performs, especially at speed. I left it on my 6th gen, as I have no issues with how my bike runs in its current state. To each his or her own though.

    I will say that you gave norkelboy one hell of an erection once you put the data up there. He must have rubbed one out the rest of the night as he followed your posts around furiously hammering the like button with his titanium mouse at breakneck speed. I hope he didn't break his mouse or keyboard, lord knows what he would do without this place to stroke his, um....well...you fill in the blank!

    I'm outs! :Smokin:
     
    A.M likes this.
Related Topics

Share This Page