All about 2 stroke ATV Header Pipes

Exhaust system matters a lot. How your ATV works partly depends on the type of exhaust system you have. 2 stroke system differs from the more common four-stroke cycle. The former has only two strokes linear movements of the piston instead of four. Despite this difference, both still perform the same four operations intake, compression, power and exhaust.
With 2 stroke ATV Header Pipes, there could be a short-circuiting of fresh charge from intake to exhaust which increases fuel consumption and emissions of unburned hydrocarbons. To minimize the mixing of the intake and exhaust flows, the cylinder ports and piston tip are shaped and positioned. Also, back pressure is provided by a tuned pipe with an expansion chamber at just the right time to push fresh air-fuel mixture sneaking out the exhaust back in again.
By using 2 stroke ATV Header Pipes, this is how the engine works. As the piston reaches the peak of its stroke, the mixture will be ignited. And by the fast expanding gases of combustion, the piston will be forced down. Now, a hole near the cylinder connected to the exhaust pipe is opened giving way to the burned gases to escape. It also shuts the inlet port and pressurizes the crankcase, pushing some mixture from the crankcase back to the inlet tract. This causes the reed valve to close and prevent the mixture from entering the air filter.
Now, the air fuel is forced into passageways connecting the crankcase to the cylinder. The holes connected to these passages to the upper cylinder are uncovered by the descending piston and air-fuel mixture is likewise forced to the upper cylinder. Since the transfer ports are lower than the top of the exhaust port, there s a period of time for air-fuel to come as the exhaust leaves. When the piston reaches the bottom and begins to rise again, the transfer ports are closed by the piston and the air is compacted.
Changing your 2 stroke ATV Header Pipes on your ATV can have a marked effect on the engine s power characteristics. This is because the two stroke system makes use of pressure waves emanating from the combustion chamber effectively supercharge your cylinder. Basically, expansion chambers are built to harness sound waves created in the combustion process, to first suck the cylinder clean of spent gasses. One advantage with this pipe system is the fact that it is easy to tune. linn desiree



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Audi Canada Wins 3 AJAC Awards

A AJAC award is enough to paste a big smile on the face of the Audi executives. What if there are three more?
Audi Canada is all new R8 and S5 models are triple crown winners today, after being nominated by members of the Association of Journalists of Automotive Canada (AJAC) as the best cars in their respective " Prestige " & quot ; Sports Performance Over $ 50000-2008 Model Year The two winners Audi vehicles were evaluated against a long list of stringent criteria in the midst of a group of strong competitors eligible, the report continued.
" Inspired by every great idea I have ever had, the all-new R8 will create greater visibility for the Audi " In Canada, said Doug Clark, Audi Canada & 39; s Director of Marketing Communications and Public Relations. " Equipped with the know-how that Audi has garnered through its involvement in building motor sports and premium-class cars, the R8 is a precision sport car that embodies Audi & 39; s superlative modes road, pioneer technology and advanced design. "
" The new Audi S5 open a new chapter entirely in Audi product portfolio. Below is a function of movement in design and technology, and inspires a pure desire to get inside and at the wheel ", explained Clark. " For engineers and designers behind this new model, improve the experience of driving was the motivation. It & 39; sa scale against which the power of ultra innovative technologies, as well as the fascination of progressive design, will have to be measured from now. "
The AJAC Canadian Car of the Year competition brings together more than 70 prominent auto journalists in Canada. They meet in Niagara-on-the-Lake for several days in October for the annual " TestFest " event. This program has received praise from journalists and buyers, because the evaluation and voting processes are conducted in a professional, fair and equitable way.
The journalists who attended the event is a rare opportunity to test all entries drive back to back, in identical conditions. A long list of important criteria is assessed by a group of journalists assigned to a particular category, and also for its vote for the individual choice of car year.
This year, AJAC participating members were invited to choose a vehicle from 59 Canadian Car From Year entries as your dream car, truck or sport utility vehicle. They were informed that, regardless of price, which were to pick the vehicle, which would most like to have. Most of the 74 journalists had to cast a ballot vote, and of these, two thirds must have voted for the same vehicle in order to make a " AJAC Most Coveted " award presentation, the report noted. If the criterion of two-thirds had not been met, the bonus would not have been presented.
According a series of investigations AJAC, the Canadian Car of the Year Awards has a significant influence on the decision to purchase Canadian car buyers.
" Winning these awards mark a defining moment for the Audi brand in Canada ", said Diego Ramos, the Executive Vice President of Audi Canada ", especially when you consider the other fine cars with which the R8 and S5 were competitors. I applaud the enormous degree of Professionalism and integrity with which AJAC operates this annual competition ".
" Clearly, these awards attest to the fact that both are leaders in their segment and that the Audi is growing " he concluded.
With awards as those mentioned, the automobile, also famous for the manufacture the Audi Cabriolet radiator will truly flourish in the area automobile. Audi long way to go! randy shiela



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Best in Class Acura Clutch for Uncompromising Car Control

The clutch assembly installed on an Acura is an integral part of the car s transmission system. It is responsible for controlling the transfer of torque from the engine to the drive wheels. Composed of a flywheel, clutch disc, pressure plate, and friction discs, the Acura clutch engages and disengages the gearbox depending on the input entered by the driver via the clutch pedal. When the clutch pedal is pressed, the pressure inputted is carried by a hydraulic pump called the clutch master cylinder to the clutch discs, which then engages the gearbox according to the pedal input. The metal friction disc then makes contact with discs and regulates the flow of torque to the drive wheels.
Such engagement and disengagement is what the Acura clutch is primarily designed for. Typically, an Acura clutch has more than one friction disc, with the discs pressed tightly together against the flywheel via the springs, to provide quicker launches and faster engagement. Acura clutch discs are lined with asbestos, the very same material used in brakes shoes and pads, to provide more friction during clutch operations. It enhances the grip between the flywheel and the disc. Normally, the Acura clutch uses the ceramic type of clutch discs for increased friction. A clutch with better materials and stronger springs will enable faster and smoother launches, quicker shifts, and durability.
Depending on the intended use of the vehicle, Acura clutch assemblies are categorized into two varieties: the performance and stock clutch systems. A stock Acura clutch assembly is composed of up to specs clutch friction disc and clutch pressure plate, with some Acura clutch kits sporting pilot bushings or pilot bearings to complement the high-traction friction material of the clutch. Performance clutch systems have a heat-treated steel finish to anticipate the harsh drive conditions of muscle, or performance, cars. The pressure plate holds the springs, cover and release fingers, which bind the clutch disc. Two types of pressure plates can be fitted on the Acura clutch, the diaphragm- and spring-type pressure plates. Another car contraption called flywheel can also complement the Acura clutch system, where the transmission is optimized for high performance, quick shifting and harsh engagement. stacie elfriede



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The Wow Factor of Convertibles

" Convertibles are emerging again ", says Jim Hall, an analyst for automotive research firm AutoPacific Inc. , Tustin, California. This year the automakers sales reports are dominated by improved versions of small cars. Moreover, an important market reflects that you have bought not as costly with convertible hardtops. These convertible deliver an option to enjoy the fun of driving to the air and safety of traditional cars especially during the winter and rainy days.
" If you are in Chicago, this is an excellent vehicle to drive in the winter ", Volkswagen says Steve Keyes of its spokesman for the company Eos. The convertible that made a dramatic increase in sales include MX-5 Miata with power retractable hardtop, Pontiac G6 and Volvo C70.
Mazda Miata is one of the innovative convertible that triggered the crowd to press their buttons purchase. Mazda Miata parts that include the remarkable power retractable hardtop made the vehicle, the new price leader of the year. When he came to the showrooms, their starting price was $ 24945. This time, the lowest-price convertible in the United States was a 2-seater Mercedes-Benz SLK280. That price of $ 44125.
Last year, less expensive power-operated hardtop convertible is far from being found. Currently, three of the nine models hardtop convertible with power have a base price of no more than $ 30000. Another reason that triggered the mainstream demographics said the purchase convertible is reducing its parts. In the EU, 40 convertible nameplates, softtop and hardtop now on sale. They have the game prices not exceeding $ 33000. The second lowest-price hardtop was 2007 Volkswagen Eos, which has a price starting at $ 28620. Then comes the Eos 2007 Pontiac G6, which is price of $ 29150.
Automakers are taking account of this change, yet functional style convertible. Jace Stokes, Pontiac product manager, says " The G6 convertible& 39;s appearance has set people into dealerships in areas of the country that have not traditionally been strong for Pontiac. " danu vanetta



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