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Iron Butt
Posts: 880
Orlando, FL | John Frey, sorry to be the bearer of bad news but sounds waves travel at 600 mph! And those waves bounce off all sorts of objects just like waves in a pond. Hence, waves the are initially propagated in one direction often end up moving in the opposite direction. And at 600 mph that happens pretty quick! TEN times faster than a car traveling toward you at 60 mph. When I used to ride my old Harley to my sons he said he could hear me coming a mile away (an overstatement obviously) But the point is the the people in front of someone with loud pipes can often hear you coming.
pcaffrey....when I changed my last bike to loud pipes my neighbors.... whom I though would be upset, all came over and told me how good they sounded. Even cagers seem to like loud pipes as long as your not cracking the throttle when you ride thru the neighborhood late at night.
During the day I ride with my high beams on. In a parking lot one day a man walking out from the store told me my high beams were on and that it was "annoying". I told him that was exactly the effect I was looking for so that he would see me before he ran over me!! HEadlight modulators are annoying too, but they get an oncoming cagers attention during the day.
So Dwight, rock on, and let us al know how it sounds. Perhaps even post a Your tube vid so we can hear the sound for ourselves.
Now Git 'er done!
Edited by MaddMAx2u 2011-11-06 8:05 AM
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Cruiser
Posts: 116
| Hey wibiker do you have any pictures? I like the way you did the mod, you were able to get the sound you liked and still be nice to other bikers. And thanks to MaddMax I plan on doing it soon, only problem is that is it starting to get really cold here in Mi. May have to wait until next spring to break her out....yeah right....lol |
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Cruiser
Posts: 232
| loud pipes do safe life in some cases. Do a little test next time you out go to your D.Q. or any other outside seating diner, you hear loud m/c look up where is it? 90% of the time coming toward your position. The reason for riding in front to avoid noise is that your going away from the source stop at light and you will hear it. THE Sweet sound of the pipes rumble is music to my ears. Don't like loud pipes don't do it. Kinda like like the helmet issue. I Got thrush muffler to put on my bike when i can.I have put pipes on everything i own except for wifes 2011 kia soul (HAMSTER MOBILE) so says my grandson. |
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Visionary
Posts: 1340
Gainesville Fl Home of the Gators | MaddMAx2u - 2011-11-06 9:01 AM
John Frey, sorry to be the bearer of bad news but sounds waves travel at 600 mph! And those waves bounce off all sorts of objects just like waves in a pond. Hence, waves the are initially propagated in one direction often end up moving in the opposite direction. And at 600 mph that happens pretty quick! TEN times faster than a car traveling toward you at 60 mph. When I used to ride my old Harley to my sons he said he could hear me coming a mile away (an overstatement obviously) But the point is the the people in front of someone with loud pipes can often hear you coming.
!
Not that I want to join the argument, but a little food for thought. An ambulance with a siren at 125db will out run it's ability to warn someone ahead at 65MPH. Above that speed the reaction time, the air presure, and distance traveled by the sound wave cancle each other out. Simple physics win out over perception. The noise from the bike a mile away is non directional, and loose sound waves bouncing around don't do anything to help |
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Visionary
Posts: 4278
| According to the Hurt report is was determined that 77% of motorcycle accident hazards come from in front of the rider, while only 3% approach from the rear. What's interesting here is that motorcycle pipes direct the vast majority of sound backwards where the least danger is, so for loud pipes to be truly effective safety measures they would need to be pointed forward where the greatest danger lies. That doesn't do much to support the proposition that loud pipes are a safely factor. The other serious problem I have with this supposition is that it is, at best, a secondary safety measure, not a primary or proactive measure. Assuming that the other driver will act with caution once you have identified your presence by the sound of your bike roaring up from behind is foolhardy at best. That's like assuming that if you were to wear a bright yellow safety vest, or full riding gear, you can relax because now you're protected! Lets face it, the best protection you have is that 3 pounds of grey matter between your ears, that and a constant awareness of your surrounding, and acting on the supposition that the rest of the motorists in the world are all idiots and its up to you and you alone to ensure your safety on the road. Relying on the other guy to act reasonably or safely just because you're making more noise than those around you is just asking for trouble!
If you want to loose horse power by about 9% then yes run your straight pipes but don't kid your self about saving lives. The next time your driving your cage rock in to your music keep in mind all accident happen in that split second. As you said your buddy's "herd you coming" yes and where were you in front of the sound so what good does the loud noise do if your in front of it.
Keep your be leafs and I hope you never find out the hard way. |
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Iron Butt
Posts: 880
Orlando, FL | Dude, run what you want and enjoy. Screw the Naysayers. What is it with people that want to stop others from enjoying what they like. You wanna go Darkside.....go for it. You wanna run straight pipes. Go for it. You want a quite ride like a Wing, go for it. You want a tall plastic windshield that you have to look thru, go for it. You wanna wear a helmet.....enjoy. You wanna go with no helmet.....enjoy. CHOICE is what makes America great. Enjoy it Dwight. And SOME of us would like to know how it works out. V Twins have been straight piped for YEARS and run well. The Vic 106 is just another V twin. If quiet mufflers gave such great performance then NASCAR and the Drag cars would be nice and quiet! As XRSteve pointed out you likely lose some low end and need a tuner. But who the F cares! Just enjoy it the way YOU want it.
Edited by MaddMAx2u 2011-12-17 5:47 PM
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Tourer
Posts: 599
New Mexico | According to the Hurt report is was determined that 77% of motorcycle accident hazards come from in front of the rider, while only 3% approach from the rear.
That's why I disabled my rear brake lights. Obviously we need them facing forward!
TRELL - 2011-12-16 10:03 AM
loud pipes do safe life in some cases. Do a little test next time you out go to your D.Q. or any other outside seating diner, you hear loud m/c look up where is it? 90% of the time coming toward your position.
Good example 
MaddMAx2u - 2011-12-17 4:45 PM
Dude, run what you want and enjoy. Screw the Naysayers. What is it with people that want to stop others from enjoying what they like.... ...Just enjoy it the way YOU want it.
Exaaaactly!! If it's too loud, you're too old!!
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Tourer
Posts: 373
Lansing, MI |
You damn Eaton Rapids red neck! Just put some stacks on it like all those red neck trucks down ther and call it good....
BTW, I was looking around on e-bay and found your old KP. They're asking $11,900 for it. So sweet, do ya miss it? |
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Cruiser
Posts: 116
| Yeah I miss it a little, but wow what a bike this vision is..Stacks? now that is an idea..lol..oh straight stacks...oh yeah |
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Visionary
Posts: 1365
Central Maryland | Boots - 2011-11-03 11:19 AM
Loud pipes save lives.
I know some folks say no, but I have been riding for 30+ years, have always had loud pipes, and know the impact mine have. Sure, cars are quieter now, but some sound still gets through (I own a 2007 vehicle, and can still hear pipes). Plus windows down, convertibles, sun roofs, older vehicles - All allow for noise. I know when I blip that accelerator it works better than my horn in most situations. And sometimes in high traffic situations I keep the rpms up over 3k for periods of time to make myself heard.
I see heads turn.
I see people brake.
I have seen people in my mirror suddenly look up from texting when I am loud on deacceleration.
And as I said, I do have a cage. I hear pipes.
So is for safety, not to be a pain in the A$$... That's just a side benefit 
Good post. I agree as well. That's why I'm getting rid of the stock exhaust and going with the Thrush mod. All of my bikes have had aftermarket exhaust installed on them; and we all need every angle of assistance; be it loud pipes, modulating headlights, bright gear and helmets and passive aggressive operation of our motorcycles. |
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Visionary
Posts: 2300
Georgia, west of Atlanta | So how does it run ??? |
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Visionary
Posts: 1340
Gainesville Fl Home of the Gators | Still not getting into the argument, but...........
The over abundance of loud pipes has caused many people to relegate them into background noise.
For the most part those that take notice are the already aware of motorcycles, and are just checking out what they know is there
Most luxury cars have cabins tuned to eliminate the low frequency sound that is typical of a V-twins
Sudden medium to medium high frequency sounds tend to arouse attention, and because most sirens are pitched to higher frequency; auto makers allow higher levels of sound penetration in those frequencies.
Loud horns save lives |
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Visionary
Posts: 3773
Pittsburgh, PA | where i live and a few places i have traveled (lake lure nc for one) they have laws on noise. and one way they can enforce it is, if your really loud and people complain about it they can see if you are running your stock exhaust of not. because if you read the fine print in the owners manual you will see it violates Federal law to alter the exhaust.. So they Can use that to get you. i have the s1l1 mufflers on my vision but no one ever complains about it. Some area police have noise decibel meters.. |
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Visionary
Posts: 8144
New Bohemia, VA | I think all the points are well made. So, now that's out of the way, can we stay on topic of putting straight pipes on a Vision, or any other bike? |
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Cruiser
Posts: 116
| I just like the sound of the pipes when they are loud, I like the Thrush which is on the bike I was just trying to see if I could get a little more bark out of the pipes when you open the throttle..I like the Nascar6 pipes bark I just wanted to see if I could get a little more from my pipes..I had 2 into 1 pipe on my KP and they were more of a straight pipe and they really had a bark to them... Dwight |
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Tourer
Posts: 373
Lansing, MI |
Dwight, which way did you put them glass packs in there? Red neck tip #2- If you mount them so the little "scoops" inside the muffler are pointing twords the rear of the bike it'll be much louder and sound different. Ahh, you probably already knew that....
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Visionary
Posts: 1340
Gainesville Fl Home of the Gators | varyder - 2011-12-21 8:06 AM
I think all the points are well made. So, now that's out of the way, can we stay on topic of putting straight pipes on a Vision, or any other bike?
Answer is simple. A straight pipe that dumps into a large dimeter canister WILL loose column velocity, and WILL make LESS torque on the low to mid range. Because of less restriction it MAY make a couple HP more at the top end. Something like a thrush muffler MAY not suffer as badly as it is a 2" diameter can keep up velocity. It also has some anti reversion stuff built into it.
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Cruiser
Posts: 116
| So if I was to use 2 inch pipe to the rear of the bike, I could possibly keep the velocity up so there is not a loss of power from the exhaust. Has anyone block off the crossover so to basically make the stock pipe into a 2 into 1 ? Hey its winter and I am just throwing ideas out there....D
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Visionary
Posts: 1340
Gainesville Fl Home of the Gators | Dwight - 2011-12-21 10:01 AM
So if I was to use 2 inch pipe to the rear of the bike, I could possibly keep the velocity up so there is not a loss of power from the exhaust. Has anyone block off the crossover so to basically make the stock pipe into a 2 into 1 ? Hey its winter and I am just throwing ideas out there....D
The length of the 2" pipe, and how it was joined would come into play, but in theory....yes
As for blocking it off. Do NOT do it. As far as I have seen NOBODY has come up with a headpipe that has done better then the stock Vic unit. A couple of companies have built 2-1 pipes, and the results were not a strong as the Vic unit with good mufflers |
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Cruiser
Posts: 116
| I have the pipe so I will give it a try...What is the best exhaust for the Vision from a power stand point? I have read all kinds of things and it does get confusing...thnks Dwight |
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Visionary
Posts: 1340
Gainesville Fl Home of the Gators | Dwight - 2011-12-21 11:16 AM
I have the pipe so I will give it a try...What is the best exhaust for the Vision from a power stand point? I have read all kinds of things and it does get confusing...thnks Dwight
Not sure what your question is, but start with stock unaltered[cats in] head pipe, and after that it kinda depends on what you are looking for. My dyno says the D&D makes the best Tq, the Nascar makes the best HP, the S1L1 is a great all around pipe, the Adam Bombs were alright |
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Tourer
Posts: 373
Lansing, MI | How about the Ness Big Hooters err, I mean Honkers? Have ya tested them Kev? Dwight, did you like the way my Vision sounded when I whored it out to ya?
Edited by cook06vegas 2011-12-21 10:57 AM
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Cruiser
Posts: 116
| Thanks Kev. that is exactly what I was asking, and Matt I did like the sound of your bike which sounds alot like my thrush mufflers now. |
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Visionary
Posts: 1340
Gainesville Fl Home of the Gators | cook06vegas - 2011-12-21 11:57 AM
How about the Ness Big Hooters err, I mean Honkers? Have ya tested them Kev? Dwight, did you like the way my Vision sounded when I whored it out to ya?
Honkers, and Bombs work about the same. |
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Tourer
Posts: 373
Lansing, MI | Dwight - 2011-12-21 12:13 PM
Thanks Kev. that is exactly what I was asking, and Matt I did like the sound of your bike which sounds alot like my thrush mufflers now.
Oh. Which way you runnig them, scoops or "louvers" twords the back or front? Or are they built different than that? |
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straight piped?
