True, and and on the bright side i fortunately stumbled upon this or i could have never realized it !
Tbird short pipes
- Thread starter dazco
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Wow that sound like some real great perks you are getting out of theses pipes. I wonder why it decrease vibration
Any time you cahnge the engine dynamics in any way it can change things like that. Sometimes for the worse, sometimes for the better. I always feel if the bike is running stronger that means things are more in balance, and it's certainly running stronger than ever now. I cited this many times over the years....when i changed from stock plugs to iridium plugs on my speedmaster, it smoothed it out to where my aftermarket mirrors that were very blurry cleared up to a great degree. But this example on the Tbird is even more pronounced. The bad part is that now 95 MPH feels like the bike is barely working, so now i'm gonna want to always cruise up around 95 MPH :ya2:
Well I know when I changed the pipes on the Speedy and did the jets and dyno tune it was a different bike. Then again I was expecting this but I never noticed and change in vibrations I must admit. I have only noticed change sin vibrations when changing tires to a different make
same here. My speedy's vibration never changed with all my rejetting and airbox mods and pipes. But simply changing to iridium plugs had a big impact on vibes. Go figure.
Then again I don't think that my Speedy actually has any real vibration problems that I have ever noticed. I suppose you get used to the way a bike is after time and some of the possible misgivings juts meagre into being the character of the overall bike dynamics
Mine did vibrate a fair amount, but the frequency was such that it wasn't at all bothersome. In fact i quite liked it. It was not a buzzy harsh vibe at all. Low frequency and just enough that you enjoyed it ! Now after the shorties the Tbird is very similar except now it actually has less vibes than the speedy. Aund what there is is now nicer more like the speedy whereas before the pipes it was that buzzy kind. That was one of the things that bothered me about the r3. It had a lot of vibration and it was the harsh buzzy kind similar to a bad running 2 stroke. thats also what the Tbird was like above 80 MPH. Now it's almost void of any vibes up there. It's a real jaw dropper. Oddly tho the vibration in the pegs didn't diminish like the bars. in fact, i didn't pay a lot of attention to that so maybe i'm wrong. But i will check tomorrow when i go on a looooooooong ride. Absolutely cannot wait to hit the twisties in that thing now. :ya2:
Well looking at the time now I suppose you will be heading out in a few hours if the weather is good, enjoy :y114: I suppose if I compare the Speedy to some of my Jap bikes that I have had then it does vibrate. However it was one of the dynamics I always enjoyed from a Triumph so I suppose if it was void of any sort of vibration I would have also been disappointed :ya2:
I felt horrible so i couldn't ride long. But it was hard to turn back ! (my heart said no, upset stomach said yes) But lord, the bike was such a blast on the little i did ride. (about 50 miles mostly twisties) It's seems so much faster now in the twisties because it comes out of the hole so quick now and i therefore don't lose a lot of speed slowing down for tight curves. I cannot wait till i get that tuning device. If i can get this much gain from that i'd be in absolute heaven. Tho i imagine with that plus the seat hack (a mod to open the airways up) and filter/box mods i should get double that. The guy said he will get one to me next week after i sent the final info/pics to him. It's crazy how much better most triumph models could be if they weren't subjected to all the emissions and noise regulations. As of this moment it's much better than it was stock in many ways.
[quote author=DaveM link=topic=10126.msg50256#msg50256 date=1284211858]
Well looking at the time now I suppose you will be heading out in a few hours if the weather is good, enjoy :y114: I suppose if I compare the Speedy to some of my Jap bikes that I have had then it does vibrate. However it was one of the dynamics I always enjoyed from a Triumph so I suppose if it was void of any sort of vibration I would have also been disappointed :ya2:
[/quote]
Actually, Dave, you are spot on. When Triumph was developing the new Bonneville, they had the engine balanced out silky smooth. In test, veteran Triumph riders complained that it felt more like a Jap bike than Brit twin. The engineers actually took some of the counter balance out of the Bonnie to give it a little vibration. And the cruisers have a 270 degree crank instead of a 360.
Well looking at the time now I suppose you will be heading out in a few hours if the weather is good, enjoy :y114: I suppose if I compare the Speedy to some of my Jap bikes that I have had then it does vibrate. However it was one of the dynamics I always enjoyed from a Triumph so I suppose if it was void of any sort of vibration I would have also been disappointed :ya2:
[/quote]
Actually, Dave, you are spot on. When Triumph was developing the new Bonneville, they had the engine balanced out silky smooth. In test, veteran Triumph riders complained that it felt more like a Jap bike than Brit twin. The engineers actually took some of the counter balance out of the Bonnie to give it a little vibration. And the cruisers have a 270 degree crank instead of a 360.
[quote author=CarlS link=topic=10126.msg50279#msg50279 date=1284254397]
Actually, Dave, you are spot on. When Triumph was developing the new Bonneville, they had the engine balanced out silky smooth. In test, veteran Triumph riders complained that it felt more like a Jap bike than Brit twin. The engineers actually took some of the counter balance out of the Bonnie to give it a little vibration. And the cruisers have a 270 degree crank instead of a 360.
[/quote]
See, this disturbs me. Much like EFI i don't understand the desire to have a bike that vibrates more to make it more like the old bikes. I like the old bikes too, but if i wanted every detail about them i'd buy one ! To me a new bonnie should give me the best of both worlds.....todays technology to rid the issues of yesterday's bonnies, but with yesterdays basic look and feel to whatever degree it needs to not be a fully modern bike that has nothing in common with a meridan. I don't think a bike needs a lot of vibration to get there or have personality, whatever you wanna call it. Like EFI i would welcome less vibes any day. Having SOME is part of the motorcycle experience, i agree. But I have yet to ride a bike i wouldn't prefer had less. My speedy was close, but i'd still preferred a bit less in certain areas at least, such as high speed cruising.
Whats the next step....to create oil leaks on purpose like the old days? I can see it now......accessory gasket kit...."defect gasket kit will make your hinkley bonneville leak just like those great bonnevilles of yesteryear". :ya2:
Actually, Dave, you are spot on. When Triumph was developing the new Bonneville, they had the engine balanced out silky smooth. In test, veteran Triumph riders complained that it felt more like a Jap bike than Brit twin. The engineers actually took some of the counter balance out of the Bonnie to give it a little vibration. And the cruisers have a 270 degree crank instead of a 360.
[/quote]
See, this disturbs me. Much like EFI i don't understand the desire to have a bike that vibrates more to make it more like the old bikes. I like the old bikes too, but if i wanted every detail about them i'd buy one ! To me a new bonnie should give me the best of both worlds.....todays technology to rid the issues of yesterday's bonnies, but with yesterdays basic look and feel to whatever degree it needs to not be a fully modern bike that has nothing in common with a meridan. I don't think a bike needs a lot of vibration to get there or have personality, whatever you wanna call it. Like EFI i would welcome less vibes any day. Having SOME is part of the motorcycle experience, i agree. But I have yet to ride a bike i wouldn't prefer had less. My speedy was close, but i'd still preferred a bit less in certain areas at least, such as high speed cruising.
Whats the next step....to create oil leaks on purpose like the old days? I can see it now......accessory gasket kit...."defect gasket kit will make your hinkley bonneville leak just like those great bonnevilles of yesteryear". :ya2:
h: You mean you never installed the leaking gasket kit yet, it has a small little tank that you put the oil in so it does not actually come out of the motor itself :ya2:Man I just read that you could not go for a good ride now that sucks so I suppose we will have to wait until next weekend then to get a full review
[quote author=dazco link=topic=10126.msg50312#msg50312 date=1284303283]
See, this disturbs me. Much like EFI i don't understand the desire to have a bike that vibrates more to make it more like the old bikes. I like the old bikes too, but if i wanted every detail about them i'd buy one ! To me a new bonnie should give me the best of both worlds.....todays technology to rid the issues of yesterday's bonnies, but with yesterdays basic look and feel to whatever degree it needs to not be a fully modern bike that has nothing in common with a meridan. I don't think a bike needs a lot of vibration to get there or have personality, whatever you wanna call it. Like EFI i would welcome less vibes any day. Having SOME is part of the motorcycle experience, i agree. But I have yet to ride a bike i wouldn't prefer had less. My speedy was close, but i'd still preferred a bit less in certain areas at least, such as high speed cruising.
Whats the next step....to create oil leaks on purpose like the old days? I can see it now......accessory gasket kit...."defect gasket kit will make your hinkley bonneville leak just like those great bonnevilles of yesteryear". :ya2:
[/quote]
I was just thinking about marketing those! :y114:
They did not make it vibrate like the old ones by any means. They just put a little "feel" into it.
See, this disturbs me. Much like EFI i don't understand the desire to have a bike that vibrates more to make it more like the old bikes. I like the old bikes too, but if i wanted every detail about them i'd buy one ! To me a new bonnie should give me the best of both worlds.....todays technology to rid the issues of yesterday's bonnies, but with yesterdays basic look and feel to whatever degree it needs to not be a fully modern bike that has nothing in common with a meridan. I don't think a bike needs a lot of vibration to get there or have personality, whatever you wanna call it. Like EFI i would welcome less vibes any day. Having SOME is part of the motorcycle experience, i agree. But I have yet to ride a bike i wouldn't prefer had less. My speedy was close, but i'd still preferred a bit less in certain areas at least, such as high speed cruising.
Whats the next step....to create oil leaks on purpose like the old days? I can see it now......accessory gasket kit...."defect gasket kit will make your hinkley bonneville leak just like those great bonnevilles of yesteryear". :ya2:
[/quote]
I was just thinking about marketing those! :y114:
They did not make it vibrate like the old ones by any means. They just put a little "feel" into it.
And I love that feel :y18:
I noticed yesterday it smooths out to the max right at 95 MPH, and at that point it almost feels like you're coasting in neutral. The only bad thiing is it makes me want to stay at 95 on the freeway all the time. h:
h:
Well, you will get there quickly. :y114:
True, but only if i GET THERE. :ya2:
And one huge speeding ticket :tongue: I have a similar issue with my car it runs the best around the 100 mph and I have great difficulty keeping to the speed limit
The reduction in vibration with these shorter pipes could have something to do with the science of "natural frequency".
http://en.wikipedia.org/wiki/Natural_frequency
http://en.wikipedia.org/wiki/Natural_frequency
[quote author=Silli link=topic=10126.msg50440#msg50440 date=1284471973]
The reduction in vibration with these shorter pipes could have something to do with the science of "natural frequency".
http://en.wikipedia.org/wiki/Natural_frequency
[/quote]
I agree. being a musician especially makes me aware because the frequency of a note can do all sorts of wierd things and be rectified just by changing it a few cents. The shorties are a very different dynamic in many was, not just exhaust pulse. Even the weight and more so the length can make for a resonance in the way the pipes themselves vibrate and then transfer that vibration to the other parts of the bike. There is just so much that goes into it. The longs were a good foot, maybe 15" longer. And the mounting bracket was that far from the end, and the pipes are VERY heavy. probably 30 Lbs each. Imaging that 15" of length hanging out there beyond the mounting bracker and how it would vibrate up and down with all that weight. I can see how that could cause a lot of vibration alone. Not look at the shorties....the mounting bracket is right at the end of the muffler. No way for it to create the same sort/amount of vibes. so along with the difference in the exhaust pulse, this could be part of the reason too. But i think in most part it has to do with the resonance created by the exhaust pulse.
The reduction in vibration with these shorter pipes could have something to do with the science of "natural frequency".
http://en.wikipedia.org/wiki/Natural_frequency
[/quote]
I agree. being a musician especially makes me aware because the frequency of a note can do all sorts of wierd things and be rectified just by changing it a few cents. The shorties are a very different dynamic in many was, not just exhaust pulse. Even the weight and more so the length can make for a resonance in the way the pipes themselves vibrate and then transfer that vibration to the other parts of the bike. There is just so much that goes into it. The longs were a good foot, maybe 15" longer. And the mounting bracket was that far from the end, and the pipes are VERY heavy. probably 30 Lbs each. Imaging that 15" of length hanging out there beyond the mounting bracker and how it would vibrate up and down with all that weight. I can see how that could cause a lot of vibration alone. Not look at the shorties....the mounting bracket is right at the end of the muffler. No way for it to create the same sort/amount of vibes. so along with the difference in the exhaust pulse, this could be part of the reason too. But i think in most part it has to do with the resonance created by the exhaust pulse.
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