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Thread: Pipes - Loud or loser?

  1. #31
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    Mr Policeman that pulled me up on Vinegar Hill todaywhile returning from the Cold Kiwi would just like to say "No, no they don't, but they do allow me sufficient time to put my lunch down, check my watch, step slowly out of my patrol car and drum my fingers on the roof as I wait 5 mins for you to appear over the last hill..."


    I agreed to agree with him
    Parental advisory: Your kids may accidentally wake up and realize the bullshit that fills our world.

  2. #32
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    Quote Originally Posted by Big Dave View Post
    Got a poll running on the KR site on loud pipes:
    Do loud pipes save lives?

    http://kiwiridermagazine.blogspot.co...yes-or-no.html
    I would say that there are some situations where loud pipes may improve safety.

    Overly loud pipes can in some situations be a hazzard.

    Personally I bought a loud racing pipe for the sound effect. Baffle in at wof time.

  3. #33
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    Quote Originally Posted by cowboyz View Post
    There was a recent case of a guy being run over by a reversing steam roller. -
    Surely the sight of steam hissing from valves, and men waving red flags would...............
    ok, i'll shut up.

  4. #34
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    Quote Originally Posted by tri boy View Post
    Surely the sight of steam hissing from valves, and men waving red flags would...............
    ok, i'll shut up.
    No... hes talking about a Steam roller, not his ZX9
    Parental advisory: Your kids may accidentally wake up and realize the bullshit that fills our world.

  5. #35
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    Doppler effect

    Quote Originally Posted by bogan View Post
    open road, nah, had a guy with loud pipes overtake me yesterday, I didn't hear shit till he was right next to me. In town, maybe, though I would expect it would be dopey pedestrian accidents that are reduced.
    Well said! to many idiot opinions on this. believe it is called Doppler effect - you don't here damn thing till it passes - well you do hear something but against background noise going on NOT enough to make a difference.

    Loud pipes don't help - they just sound cool. can one open up the stock pipes on a Trophy?
    Stuff everything...I've always got my bike.

  6. #36
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    Quote Originally Posted by tamarillo View Post
    to many idiot opinions on this. believe it is called Doppler effect - you don't here damn thing till it passes

  7. #37
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    Quote Originally Posted by tamarillo View Post
    Well said! to many idiot opinions on this. believe it is called Doppler effect - you don't here damn thing till it passes - well you do hear something but against background noise going on NOT enough to make a difference.

    Loud pipes don't help - they just sound cool. can one open up the stock pipes on a Trophy?
    I think it's agreed that they do not help on the open road.
    But if you're unfortunate enough to live in a city it does seem to make a difference especially with pedestrians.
    Due to my job,I have ridden dozens of different bikes to and from work. I have notice that without doubt that people (not necessarily drivers) can hear you when riding a bike with noisier pipes/cans.
    An IL4 with a pipe can be heard from futher away than a noisy VTwin too. Something to do with the pitch of the yee ha coming from the cans

  8. #38
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    - termis =

  9. #39
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    Quote Originally Posted by Capt. Crunch View Post
    I think it's agreed that they do not help on the open road.
    But if you're unfortunate enough to live in a city it does seem to make a difference especially with pedestrians.
    Due to my job,I have ridden dozens of different bikes to and from work. I have notice that without doubt that people (not necessarily drivers) can hear you when riding a bike with noisier pipes/cans.
    An IL4 with a pipe can be heard from futher away than a noisy VTwin too. Something to do with the pitch of the yee ha coming from the cans
    My experience?
    A lot of time in city traffic they hear the noise alright - but just don't know where from - or if it is coming or going.

    I've seen one case where a pedestian heard the noise and then stepped on front of the bike thinking the noise was coming from a vehicle that had just driven past them...
    Winding up drongos, foil hat wearers and over sensitive KBers for over 14,000 posts...........
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  10. #40
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    Quote Originally Posted by tamarillo View Post
    believe it is called Doppler effect - you don't here damn thing till it passes - well you do hear something but against background noise going on NOT enough to make a difference.
    actually the doppler effect just changes the sounds pitch, the lack of volume is cos the pipes are sending the majority out the back!

    Quote Originally Posted by Capt. Crunch View Post
    I think it's agreed that they do not help on the open road.
    But if you're unfortunate enough to live in a city it does seem to make a difference especially with pedestrians.
    Due to my job,I have ridden dozens of different bikes to and from work. I have notice that without doubt that people (not necessarily drivers) can hear you when riding a bike with noisier pipes/cans.
    An IL4 with a pipe can be heard from futher away than a noisy VTwin too. Something to do with the pitch of the yee ha coming from the cans
    true enough, but aren't most bikes louder than car by nature anyway? surely the number of pedestrians likely to walk out in front of a bike would have been thinned out by quiet cars a bit first?

    And tbh, I don't have much sympathy for those who don't look before they cross, wasn't that taught in year one at school? One silly bitch did that in front of me, I was rather close by the time I slowed enough, clutch in and gave a good rev, safe to say she will look both ways next time.
    "A shark on whiskey is mighty risky, but a shark on beer is a beer engineer" - Tad Ghostal

  11. #41
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    Quote Originally Posted by bogan View Post
    actually the doppler effect just changes the sounds pitch, the lack of volume is cos the pipes are sending the majority out the back!
    Solution =

  12. #42
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    Quote Originally Posted by sAsLEX View Post
    Solution =
    where did they go?
    "A shark on whiskey is mighty risky, but a shark on beer is a beer engineer" - Tad Ghostal

  13. #43
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    Quote Originally Posted by bogan View Post
    where did they go?
    Have a closer look...the pillion certain would have a hot arse!
    Have ridden one of those...FFS...if some queer cunt can't hear them from a mile away them we're all doomed!

  14. #44
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    Quote Originally Posted by Capt. Crunch View Post
    Have a closer look...the pillion certain would have a hot arse!
    Have ridden one of those...FFS...if some queer cunt can't hear them from a mile away them we're all doomed!
    hmmm, interesting design, keeps it nice a uncluttered, is that also one of the ducs witht he springless valves? also wouldn't the engine fill up with water if you parked it in the rain?
    "A shark on whiskey is mighty risky, but a shark on beer is a beer engineer" - Tad Ghostal

  15. #45
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    Quote Originally Posted by bogan View Post
    hmmm, interesting design, keeps it nice a uncluttered, is that also one of the ducs witht he springless valves? also wouldn't the engine fill up with water if you parked it in the rain?
    If you park one of those in the rain you are a re-tard.

    The design was ostentatiously meant to reduce the turbulent flow/low pressure area behind the rider by injecting the exhaust gas into the partial vacuum.

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