AMA super cross has been around for a very long time. Since the early 1970s when the first race was in the super bowl and it was called super bowl motocross but then came the term and the start of supercross. In supercross these were tight cornering tracks with big jumps rhythm sections, and woops sections. The bikes that were first ever ran on these tracks were 2 stroke meaning they are high rpm bikes which of the time were the fastest bikes around of this time but there were a lot of issues with the bike which I will explain. Supercross has changed over time the bikes the tracks and the pace of the race.
To start off with some facts and information on a official 2stroke 125cc and 250cc race bike. The 2stroke dirt bike is a bike where the motor runs of a gas and oil mix where the gas and oil are mixed together in the gas tank. The dirt bike is also cooled by a radiator and coolant in the radiator. The coolant being antifreeze. The 2 stroke motor is a 2 cycle engine which means every 2 cycle of the engine there is 1 power stroke. The 2 stroke has a cylinder in which It has a two holes in the bottom of the cylinder when the piston comes down and the holes are opened the gases that were just burnt and exploded are pushed out of one hole by new air and new gases coming in through the other whole. Then the piston goes back up and closes the holes then compresses the air and the gas together then there is a spark from the sparkplug igniting the fuel and air mixer pushing the piston back down and restarting the cycle. Now this happened at and unbelievable rate. At 12,000 rpms the motor is spinning at 200 revolutions a second. So the motor is doing 200 of the cycles that I described to you above in 1 second. This ...
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...e fuel and air and then again the sparkplug provides a spark igniting the mixer creating the power stroke sending the piston back down restarting the cycle. This engine has a lot more compression and just takes straight gas and air. With a the oil being completely separated from the gas. This engine was a lot more reliable because it didn’t spin as fast and never got as hot it lasted a lot longer and barely ever need rebuilt. Just maintain like new oil, coolant, and a new spark plug was about all it took to keep these bike running and because they weren’t rebuilt between each race the bike would be no different than the one they had raced in the previous race thus keep the rider more comfortable and more in control of the power of the bike. This lead to faster lap times more safe bikes and in the end a whole new style of racing for the world of Supercross.
When the word Mustang comes to play, most people think of a very well known car, not only for its stylish aspects, but for a variety of reasons: cost, features, speed (probably best know fact), and all around good appeal. The Ford Mustang was designed to be a people car. In 1960 Ford engineers sought out to build a car that the average motor head would be able to afford but yet still have the edgy feel about it. Back at the time of its release, in the early 1960's, the Mustang did hold the advantage over General Motors. General Motors had no car out at the time of the Mustang's release to compete with it. As the years progressed, Ford and Chevrolet managed to out do one another with there monster creations of each car. One such creation by Ford is their 590 HP "Super Stallion." The car features a 590 HP engine which burns alcohol instead of regular pump gas. Jack Keebler noted from Motor Trend Magazine, "The way to a fast time is to launch this pony at no more than 1,600 RPM, gently feeding in the throttle as the big 265/40/ZR18 Goodyear's churn at the edge of traction. Full throttle is impossible until you're well into third gear, but its still one helluva hand full to drive" (40 - 45). That is the newest creation from the M...
The first models were petrol powered, as electrical lawn mowing devices had gone out of fashion due to the danger of electrocution after accidentally cutting the power cord. The original petrol powered trimmers where two stroke engines around 28 to 32 cubic centimetres in capacity powered by a mixture of “super” petrol and oil, today they are much the same with the exception of being powered by unleaded petrol and oil, but becoming more popular is the electric trimmer. A leader in engine technology Honda has taken the latest accomplishment, with Mini 4-Stroke engines. Powered by the only 360' inclinable (can be turned on any angle and still run properly) 4-stroke engine available today, the new Honda trimmers deliver smooth, dependable power and unsurpassed fuel efficiency. They require no special gas/oil mixtures so there's no chance for improperly mixed fuels.
Looking up, you see that it is almost your turn. After getting off the hood of the car, you open the door, and sit inside the vehicle. As you firmly grasp the wooden steering wheel, the scent of unleaded gasoline fills the air, the rigid feel of the leather racing seat brushes skin, and the warm touch of chrome on the shifter radiates through the car. Sliding the key into the ignition, you turn it and hear the low grumble of the HiPo 302 cubic inch engine. You shift the car into first gear and begin to creep forward to the drag strip. You pull up to the starting line and wait. Looking over to the right and seeing your opponent eagerly awaiting the race in his red 1968 Camaro brings excitement. Overhead on the loudspeakers an announcer calls, “Up next, is a 1968 Camaro going against a 1965 Mustang Fastback. The Camaro is fitted with a 327 cubic inch engine and puts out about 210 horses while the Mustang has a 302 cubic inch high powered engine which cranks out 230 horsepower. This, ladies and gentlemen, will be a race of the ponies.” A shift into first gear sends a shiver of anticipation. You look at the light tree ahead and wait for it to turn green. It starts to count down. The first set of lights goes up. You begin to rev the engine to 2000 RPM’s. The second set of yellow lights goes up. The engine revs up even more. The car shakes slightly and the engine growls even louder. The third set of yellow lights goes up. The engine revs to 5000 RPM’s. The green lights go up. A quick dump of the clutch and the engine roars like a lion as it sprints down the track. The front end of the car lifts up and slams back down as the speed rapidly increases. The car screams as you shift into second gear. Looking over to the right, you glimpse the...
Each nitro dragster is equipped with a custom supercharged and fuel injected engine, which is the real power of the beast. Another very crucial part of the car is its parachute launch system, which if he drivers didn't have would be a very rough and maybe lethal stop. Also one of the most powerful parts of the machine is the gas which is a nitromethane. The dragsters can use up to fifteen gallons of nitromethane in only one run. Another fascinating fact is that the dragsters are twenty five feet long and two thousand three hundred and thirty pounds. The top fuel dragsters pull eight gs on launch, and also have have amazing drivers who react to the start light in less than a tenth of a second.. The “fire breathing monsters of the NHRA” as they are called are a man mad true feat of engineering. When you look back at how the NHRA started you would be shocked and amazed by the mechanics and systems that go into each nitro drag
Speediness, adrenaline, and the beauty of mind and body combine with a machine. Every racer lined up at the starting gate with their steel horses to achieve the desire of winning. These are some words that try to described what supercross is about, but is not even close to what really is. Over the years I have known people that don’t know anything about supercross; they believe that is an easy sport that just twists the throttle and hold on to the bike. For some, it might not even be consider as a sport because they believe that engines are not a sport. These kind of people will say that supercross does not requires any technique or much skills as others sports without engines. Here is some background information to my reader to get familiar with the sport. Supercross is an indoor sport that takes places in different stadiums around the US. In this races racers risk their life every time they are at the starting gate to win racers and finally to win the championship and be the fastest rider in the US. Through this essay I will provide fears, misperceptions and misunderstandings from people who don’t know about supercross. Secondly, I will respond to their claim with strong arguments and personal experience. Finally, I will construct a convincing conclusion where I will try to open the eyes to my audience, which are people who don’t know about supercross.
the craze in California. John Powers rode 150 miles on a racetrack in 6 hours, 43
3.Combustion: As the piston reaches the top of its stroke or TDC, the spark plug fires, igniting the mixture. Due to the high compression of this mixture it is very volatile and it explodes when the spark is introduced. This pushes the piston downward and produces power.
he attached a four stoke piston engine to a wooden bicycle frame. For the next few year motorcycle remained larger experimental. During the early 1900’s with continual improvement they developed into useful vehicles. Today motorcycles have the same general appearance as easier models. But modern bike are earlier to handle and they have storage frames, more power engine are more efficient.
...r," in 1885, which he never patented. It had a steerable front wheel that had easier turning, equally sized wheels and a chain drive to the rear wheel. As with the original velocipede, safety bicycles had been much less comfortable than high-wheelers precisely because of the smaller wheel size. Bicycle historians often call this period the "golden age" because many people could ride the bike without dying or injuring themselves.
According to Robert Smith, the history of the bicycle goes like this: in the late 18th century and early 19th century, a two-wheeled vehicle with a wooden frame and a saddle, known as the celeripede ("fast feet") was developed in France. The celeripede had a fixed cross-bar and no pedals, meaning that it could not be steered very well and it was moved by running along the ground while straddling the saddle. Needless to say, it never became popular.
Harley-Davidson, Inc. has a long-standing culture of relationship nurturing with its customers – of association with its customers on personal levels. Owing to this, customers look at Harley-Davidson as not only a company, but as also a family to whom they owe their loyalty. Harley-Davidson is an example of a company which has a loyal (brand) following and its customers aid in future sales via marketing based on the consumer. The company has been doing business since 1903; according to its website, “Four young men experimented with internal combustion in a tiny wooden shed. Not only did the shed not burn, but the motorcycle they built went on to serve over 100,000 miles” (Harley Davidson, n.d., p.1). William S. Harley in 1901 came up with a blueprint of a motor for fitting a bicycle. Arthur Davidson later joined him, and they then built the 1st Harley-Davidson motorcycle.
This along with the lighter construction of a two-stroke makes it the preferred motor used in small vehicles and tools (Two Stroke Engine). A two-stroke engine is operated by first drawing the mixture of fuel and air into the chamber by the vacuum caused by the upward stroke of the piston. During the downward piston stroke, the poppet valve is forced closed due to the increased pressure within the chamber. The mixture is compressed in the chamber throughout the stroke. As the stroke ends, the intake port is exposed allowing the mixture to escape into the main cylinder, expelling the exhaust gasses in the process and some of the fuel mixture as well. Momentum then causes the piston to rise, compressing the mixture as another stroke is beginning. Once the stroke reaches its peak, the spark plug will ignite the mixture causing the fuel to expand driving the piston down thus completing the cycle while additionally initiating a new
Seeing and selling bicycles for twenty-two years must have been boring for Schulte so he did some experimenting with different engines and fitted them into a bicycle frame to make his very own gas powered bicycle. With understudy Mauritz Schulte who also expiremnented with both Fafnir and J.A.Prestwich engines to be fitted into one of the Triumph
for a ride on their day off, they modified their bikes and turned a hobby of
Through much of my brothers perseverance, and a whole bunch of luck, the bike began to runfirst on one cylinder, then on both. I remember when Mike first got it running my dad and I looked on as he took the first ride around the yard; Im not sure if Mike knew it ahead of time or not, but the bike didnt have a functioning clutch. We soon discovered that rolling the motorcycle down a hill and then dropping it into gear wasnt too violent and was certainly good enough for the time being. Soon after, my dad and I were both allowed to ride; I think we both realized that if Mikes bike had been such a success on such little money (free, plus a few necessary parts) there were motorcycles in both of our futures.