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Showing results for tags 'flow'.
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Well here it is in a nutshell. The bike seems to be down on power and mpg. Thought at first I dropped a cylinder. Nope firing on all four. Was able to get into for a little yesterday. I checked spark on all plugs, idle dropped with every wire I pulled. Pulled the airbox and watched down the carbs as I revved it up, appears to have good fuel flow, maybe to much? If I was to get on it today I would just think it was normal and never work on it but knowing how much power is really has and what it is putting out now I think there is a problem. Any ideas? Shaun
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Thought you might all enjoy this one. Slushy ice flow makes it look like frozen lava flow. http://www.youtube.com/watch_popup?v=9V9p4mFEYXc&vq=medium#t
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Okay been doing A LOT of reading here and have a few questions about the HD mufflers. Below are two links to modified mufflers I found on Flea Bay. What does everyone here recommend? http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=280591168920&viewitem=&sspagename=STRK%3AMEWAX%3AIT http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=280590683985&viewitem=&sspagename=STRK%3AMEWAX%3AIT Stock HD mufflers? Stock HD mufflers, Modified/punched Link #1 (Max Performance) Link #2 (Super Flow) If recommending the Super Flow, What size baffle would work best for this bike? I want DEEPER and a little LOUDER, but NOT outrageously loud Would any of these require re jetting? Thanks in Advance. Tom
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Fairings For those of you who are interested in history, here's where the word "Fairing" comes from. Early in the development of aviation, it was realized that the important thing for an airplane was to have a lot of lift and very little drag. An enormous amount of drag happens if you lose laminar flow - that is, if instead of smoothly following the surfaces on the airplane, when the air breaks away from the surface it will form spinning vortices which tumble around and wreck the airflow all over the place. This is called turbulence. The exact same problem was known from laying out the keels of ships, for water flow around a ship hull is a lot like air flow around the skin of an airplane. This problem was analyzed by mathematicians. They learned something: they could predict the points at which the air flow (or water flow) would break away from the surface and start to become turbulent. A curve which has no breaks in it is called "Continuous" by mathematicians. A curve which has no sharp corners in it is called "smooth" by mathematicians. Smooth means the first derivative of the curve is continuous. At any given point, a curve has a radius of curvature. If there are no sudden jumps in the radius of curvature, the curve is called "Fair." A Fair curve has a continuous second derivative. It was learned that turbulent flow always starts at a point on the skin where the curve has an abrupt change in the radius of curvature, that is a point where the curve is not fair, or a point where the second derivative is discontinuous. So, you can't just stick a wing onto an airplane fuselage - the sharp corner where they meet is not even smooth, much less fair. The designers found they had to locate places like this on the aircraft skin and cover them with some smoothly curved sheet metal. These pieces of sheet metal are called "Fairings." http://www.calsci.com/motorcycleinfo/Images/dc3.jpg Notice the fairings on the wing-fuselage joint of this DC-3. I jumped out of one of these once, and it was working just fine at the time. In the '70's, when gas mileage became important, automotive companies quickly hired some aircraft designers to help them make their cars have less drag. Shortly after that, the automotive companies started putting pressure on the computer programmers to make certain that all the curves on an automotive body were fair. Some companies became quite obsessed with this: honda at one point announced that they had determined that surfaces which had a continuous fifth derivative were most pleasing to the eye, so they wanted their cad/cam systems to only design curves which were smooth, fair, and also had three more levels of derivative continuity. I don't think they got very far, as very few programmers can handle the mathematics of c5 continuous surfaces. Of course, until about 1970, there basically was no such thing as computer aided design. To lay out the curves for the hulls of ships and large bombers, boeing many years ago built a building with an unbroken wooden floor which was bigger than a football field. They would clear this building, and draw a coordinate graph on the floor. Then, the designers would tell them exact points where they wanted the hull skin or aircraft skin to be. The engineers would hammer nails into the floor at these points. They would then take very long, very thin strips of oak, soak them in water, and tie the oak strips to the nails. The oak will naturally form a shape of least energy, which happily enough is a shape which is both smooth and fair. The engineers would wait for the oak to dry, then trace the lines on the floor of the building. This then became the master drawing for the bulkheads. The thin strips of wet oak were called "splines," which is why today curves in mcdraw and autocad are called splines, although essentially none of the programmers know this either. Most of our bombers and battleships in WW II were laid out in this building, because this was what we had. In General Relativity, Einstein assumed that the universe itself was curved, but in a smooth and fair fashion. His reasoning: anything else would have been mathematically ugly, and he didn't believe God did ugly things. Since then, several people have made alternative theories of gravity where the universe does not have to be smooth and fair. None of them have worked worth beans, however. It seems God does in fact have a sense of aesthetics. Later, it was pointed out to Einstein that his theory included the possibility of points where the universe was neither smooth nor fair. These points are called singularities, or more popularly black holes. Not all scientists believe in black holes, and Einstein was skeptical.
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My rear shock just started leaking, 2000 rsv with about 20,000 miles on it. How long can i ride on it before I need to replace it? Cash flow is low.. And what's it going to cost to replace it?
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I was in the cafeteria at work today. I normally go there late so it is quiet and calm with not many people around. On the other side of the room I could overhear a conversation between one of the cafeteria managers and a customer. I was not paying close enough attention till I was snapped to attention by the comment "by the end of this year the oil in the gulf will have flowed up the Mississippi and be contaminating the shores in Wisconsin". Too which I could only think WTF!!! They then morphed the conversation to the FACT that rivers can only flow south. It is "impossible" for water to naturally flow North. On my way out the door after I finished my lunch I mentioned to the manager that water will always flow down hill regardless of which direction that is. Water does not know how to read a compass. At that same time as I mentioned this there was another customer that walked in and got all over me, because it is a FACT that water can only flow from north to south. At which point I had to RUN FOR MY LIFE. I did not post this in Jokes and Humor cuz it really did just happen!! I thought that I had a pretty good handle on this gravity thing and how it relates to water. Or am I all wet and therefore doomed to be headed south. I'm scared now. Hiding in my office with all of the lights off. OK flame suit on,,,,,,,,,or should I be wearing a wet suit.
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I know this has been discussed here before,but I picked up a new set of rk mufflers that came off of an 09 roadking. I asked the service guy if they had the cats in one or both of them. He didn't know what I was talking about, he said there is no cats in the mufflers from factory, if there was it would calif. only. I did look down through them and there is a difference between the two. So tonight I removed the stockers and just slid them on to hear them, I likely!! Anyhow with one being different than the other would exhaust flow be affected from one side to the other? One a v-twin I guess it would have the same effect as a v4 with both muffs being different. I don't want to modify these mufflers if I don't have to to balance out both sides as flow goes. At idle it does seem as though the left side is a little louder and has some more exhaust flow than the right. I'm waiting for the mounting brackets and clamps to show up to complete the install. Can anyone else tell me if the installed the mufflers with different internals,and if so did you notice any differnce other than sound? Thanks.....
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I finally gother back on the road and now she is loading up. If I get below 2000 RPMs, then it iwll load up and die. Does anyone have any ideas? I have already restricted the fuel flow from the petcock. I put the petcock half on/half off. It does not seem to help.
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The Mass air flow sensor on my work car, (93 Buick Century with 191k) Crapped out. $400. I ain't putting that in it if I don't have to. What do these things do? Unplugged it and it runs better than it did. Check Eng light on but runs geat. Will it hurt anything without it?? What does it do?? Old Buick is great old car uses no oil and runs good. Hate to part with it.
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Okay, got my first ride with the new Clearview XXL windshield this morning. Some first impressions. A bit less wind buffeting with the new shield, especially behind trucks. I used to get a slight side to side motion quite a ways back from trucks. That has been lessened and the only real buffeting I got today was from a truck with a bunch of huge, oddly shaped, concrete structures on the back which, I'm sure, didn't do much for air flow behind the truck. Seems like wind behind trucks is about 50% better than it was before. Took the bike for an initial ride around the block at home the other night and, since I didn't have my helmet on, the air flow just "tickled" the hair on top of my head. Noticed that my eyes also didn't tear up due to wind flow. Usually, when I ride the bike around that loop my eyes would always tear up due to wind flow. If I stretch out I can still see over the windshield fairly well. I do have to stretch a bit more with this one but can still see over if necessary. One effect that I did notice, don't know if anyone else has noticed this as well, or not. My chirp seems a slight bit quieter AND the "edge" has been taken off of the sound as well. What I mean by that is, at about 55 in 4th the chirp noise had a high pitch component to it that was, well, just annoying as H.E. double hockey sticks. I would say that component has been squelched very, very much and the overall sound has probably dropped about 20 to 30%. I'm thinking the rake has some affect on the reflection of the noise. Like I said, first impressions of the first highway ride this morning.
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