| Bajaj Pulsar, Bajaj Pulsar 220cc, Bajaj Pulsar 250cc |
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New Bajaj Pulsar 220cc ( Before it was rumoured as Bajaj Pulsar 250cc Bike) 
New Bajaj Pulsar 220cc (Before it was rumoured as Bajaj Pulsar 250cc Bike) Bajaj Pulsar is a motorcycle brand owned by Bajaj Auto in India. The two wheeler was developed by the product engineering division of Bajaj Auto in association with famous Japanese design house Tokyo R&D Manufacturer Bajaj Auto Production 2001-present Class Naked bike Engine 150 cc/180 cc/200 cc/220 cc Air-cooled, Oil Cooled, four-stroke cycle, single piston, kick start / electric start Upto 20 bhp (14.6 kW) @8500 rpm 19.12 Nm @6500 rpm Transmission 5-Gear Suspension Front: Telescopic fork, Teflon coated, 135 mm travel Rear: Nitrox gas assisted shock Absorbers. Brakes Front: 240/260 mm (disc) Rear: 130/230 mm (Drum/Disc) Tires 17" Tubeless Wheelbase 1320 mm Related Hero Honda CBZ Xtreme, Honda Unicorn , TVS Apache ,Hero Honda Karizma History Before the introduction of the Pulsar, the Indian motorcycle market trend was towards fuel efficient, small capacity motorcycles (that formed the 80-125 cc class). Bigger motorcycles with higher capacity virtually did not exist (except for Enfield Bullet). The launch and success of Hero Honda CBZ in 1999 showed that there was demand for performance bikes. Bajaj took the cue from there on and launched the Pulsar twins in India on November 24, 2001. The Pulsars excited segments of Indian youth, mainly due to a muscular shape and stylish design[2] as well as its powerful engine (in Indian context) at reasonable fuel efficiency and affordable cost. The Pulsars are believed to be greatly successful in redefining the market trend. Since the introduction and success of Pulsar, the Indian youth began expecting high power and other features from affordable motorcycles. Market position As of 2006, the Bajaj Pulsars arguably form the most popular motorbike product in the newly emerging 150+ cc class of Indian two wheeler market. Bajaj Pulsar directly competes with several other Indian motorbikes in this class, such as, CBZ from Hero Honda, Apache and Fiero from TVS, Unicorn from Honda and a few models from Yamaha and Suzuki. To retain Pulsar's position of leadership in its class, Bajaj Auto has been regularly making alterations to it to make the motorbike look fresh at all times. Versions 2001 The earliest Pulsar implemented an air-cooled, single cylinder, petrol powered, spark-ignited four-stroke engine. The early product offerings under the Pulsar brand name featured a single spark plug to ignite the air-fuel mixture fed from a carburetor, simple spring shock absorbers, round headlamp dome and a short wheelbase of 1235 mm. Both 150 and 180 featured disc brakes as standard equipment - something that was a novelty in Indian motorcycles of early 2000s. On the list of standard features were parking lights and an aircraft-type fuel-filler. The 180 cc Pulsar came with built-in Electric Start (ES) feature and twin tone horns while these two features were optional equipment on the 150 cc.. 2003 The second generation Pulsars featured Bajaj Auto's newly developed DTSi technology. The technology resulted in increased power rating of both the Pulsars by 1 bhp each and a simultaneous increase in the fuel economy as well. This version also sported a new headlamp assembly apart from the usual round headlamp, and the wheelbase also increased by 55mm to make it 1290 mm. The longer wheelbase made the stability of the bike better than its predecessor. Other standard features to be added were twin-horn and a trip-gauge. 2005 In 2005, Bajaj launched another upgrade of the Pulsar. This time it was more cosmetic than technical. The bike was offered with alloy wheels as standard option, and the stance was also lowered by about 12 mm to make it look meaner. It was the first time any bike maker in India had offered 17 inch profile wheels at the rear. The fuel tank, though remaining the same, now had a capacity of only 15 litres. The power output was now further increased to 13.5 bhp @ 8500 rpm[9]. The rear shock absorbers were now gas-filled Nitrox absorbers. 2006 In December 2006, Bajaj introduced another version of Pulsar, this time even more features were added to offer the customers. The list of new features inclulde: headlamp changed to separate the pilot lamps from the main headlamp; turn indicators feature clear lens glass with amber bulb; new self-cancelling turn indicator switch; a flush, lightweight, LCD screen, which offers a digital read-out of the key vehicle data; non-contact type speed sensor that feeds the wheel's speed data on to the display; non-contact type, backlit switches; a twin-stripe tail light unit that houses an array of light-emitting diodes; the body side panels altered to give a new, sharp, tapering-towards-the-rear look; the old engine's performance has been bettered with increased torque availability, reduced vibration and improved shift feel to the gearbox. Extension of the Pulsar range The Bajaj Pulsar range was expanded with launch of 220 cc model on November 24, 2006. This recent entry features tubeless tires, LCD speedometer and several other features from Pulsar 180 cc model. Technology DTSi DTSi stands for Digital Twin Spark Ignition, a Bajaj Auto trademark. The DTSi idea is a simple one to understand - it involved usage of two spark plugs (instead of the usual choice of one) per engine cylinder. Bajaj Auto mentions on their website that the usage of the twin spark plugs ensures a cleaner burn and less unburnt fuel in the exhaust as well as a higher thermodynamic efficiency. The supporters of this idea also claim that usage of an additional spark plug enables the engine to run a leaner air-fuel mixture leading to improved fuel efficiency. The performance of the DTSi equipped engines at high engine speeds has often been claimed to be on par with, and at times better than their Indian counterparts, despite having lower engine capacities. This may well be true, because, at high speeds, when the stroke-time available for combustion is already very low, an additional spark plug could possibly help in realizing more complete combustion and therefore more torque. However, it should be noted that this particular benefit would be truly realized only at very high engine speeds (well over the typical on-street range of 1000-6000 RPM). In the typical speed range, the time available for combustion happens to be quite sufficient and it may not matter whether the combustion is fired using a single spark plug or two of them. In other words, the fuel efficiency and torque performance in the typical engine speed range may not get influenced noticeably with an additional spark plug. Similar design efforts that aim at investigating the cost-benefit analysis of using multiple spark plugs per engine cylinder have been attempted the world over. This has been the case right since the invention of the internal combustion engine in the late nineteenth century. The Alfa Romeo Twin-Spark engines, the Rotax motorcycle engines and the more recent Honda iDSI engines use a similar arrangement of two spark-plugs. However very few small capacity engines did eventually implement such a scheme in their production prototypes. This may be the case because the idea was perhaps not observed to yield any significant or noticeable performance benefit that could be justified against the additional investment of an extra spark plug. This may well be the reason behind no other Indian motorcycle manufacturer offering such a scheme in their products. In India, it has often been a subject of debate and curiosity if the multiple-spark-plug idea is of any noticeable utility or not. Contrary to popular misconceptions, Bajaj Auto does not hold a patent for the multiple-spark-plug scheme, possibly because it was proposed and patented by several global manufacturers long before before Bajaj Auto started using it. Even though the Bajaj Auto website has been claiming that the DTSi technology is being patented (for several years as of now in 2007), it never said that an Indian or an International patent was actually granted to the company for their so-called DTSi technology. Also the website never cited a patent number of a patent granted to it, if it was the case. Bajaj Auto introduced the DTSi scheme first in their Pulsar engines (with engine cylinder capacities of 150 cc and 180 cc) and then followed up with the Discover engines (with engine cylinder capacities of 125 cc and 135 cc). ExhausTEC ExhausTEC stands for Exhaust Torque Expansion Chamber, a Bajaj Auto trademark. The technology involves use of a small chamber connected to the exhaust pipe of the engine to modify the back-pressure and the swirl characteristics, with an aim to improve the low-end performance of the bikes. This was attempted in response to the issue of a reported lack of low-end response in Bajaj's single-cylinder four-stroke engines. The ExhausTEC technology is claimed to be highly effective in improving the overall engine response, especially the low-end torque characteristics. This enhanced performance is claimed to come at no loss of top-end performance or engine smoothness. It should be noted that it has already been a common practice the world over to consider the torque and the fuel efficiency performance while designing intake and exhaust manifolds for automotive engines. Such design efforts are common among the Indian and global automotive manufacturers for several decades before Bajaj Auto marketed their effort under the term ExhaustTEC. As a consequence, Bajaj Auto does not hold an Indian or an International patent for the ExhaustTEC technology. Future developments DTS-Fi 220 CC Bajaj Auto is expected to launch a fuel-injected variety of Pulsar by April 2007. With this introduction, Bajaj Auto would achieve a close second rank in the race of offering microprocessor based fuel injected motorbike to Indian customers after honors of the first rank went to Hero Honda's 125 cc motorbike, Glamour FI. Acronym DTS-Fi stands for Digital Twin Spark Fuel Injection.[12] The DTS-Fi Pulsar will be powered by a more powerful 220 cc engine and is expected to hit a top speed of 135 km/h in stock form. Going by the version showcased by Bajaj Auto in the Delhi Auto Expo of the year 2006, the forthcoming Pulsar would exhibit a longer wheelbase, factory-fitted rear and front disc brakes and several digital meters. The Pulsar DTS-Fi will return a maximum power of 21 bhp (16 kW) and a maximum torque of 1.95 kgf7m (19.1 N7m). Also it would the first two-wheeler in India to employ a hydraulically actuated 230 mm rear disc brake. The motorcycle would be 2,035 mm in length, 750 mm in width and 1,140 mm in overall height. The curb weight would be about 140 kg. Fuel injection Fuel injection technology worldwide As opposed to the carburetor, the fuel injection mechanism usually improves the engine startability, offers a brisker torque response to throttle changes and diagnostics features. It is possible to establish accurate closed-loop control of air-fuel ratio by using the fuel injection mechanism (as an actuator) and utilizing feedback information from an exhaust oxygen sensor (as a sensor). These two components require sophisticated manufacturing practices and therefore a closed-loop fuel injection system forms a costly proposition. It was discovered in late 1970s that accurate closed-loop control of air-fuel mixture encourages efficient destruction of exhaust pollutants in a three-way catalytic converters thereby enabling a gasoline engine to produce substantially low exhaust emission quantities as demanded by the emission standards worldwide. It is for this reason that microprocessor based fuel injection technology has been implemented widely in gasoline powered four-wheelers since early 1980s. In early 1990s, several global two-wheeler OEMs also began downsizing and adapting the fuel injection technology for use in two-wheelers; the most notable efforts[13] have perhaps been those from Honda. Fuel injection technology in India In India, all four wheelers since late 1990s feature microprocessor based closed-loop fuel injection technology in place of traditional carburetor to meet the Bharat emission standards imposed by the Government of India.[14] Indian two-wheeler companies have been little sluggish in comparison, however since early 2000s, they too have initiated developing the fuel injection technology to meet the emission standards of the future (early 2010s) and for customer appeal of a high-end technology. The relatively late entry of fuel injection technology in Indian two-wheelers is mainly attributed to the higher cost sensitiveness of the Indian two-wheeler market in comparison with the Indian four-wheeler market. It is for these reasons, introductions of fuel-injected motorcycles such as Glamour FI, Pulsar 220 into Indian market are often considered as bold, aggressive moves. The often prohibitively higher cost that fuel-injection warrants limits the application to the 'premium' segment of the motorcycle market, as is exemplified by the rather slow sales of the Glamour FI. However, the early fuel injected two-wheelers in India are not expected to implement the aforesaid closed-loop control of air-fuel ratio in view of the consequent cost implications. Rather they are likely to implement the less costly option of "open-loop" or feed-forward regulation of air-fuel ratio thereby avoiding usage of (costly) exhaust oxygen sensor. Automotive experts argue that such a scheme, in comparison with the aforesaid closed-loop scheme, is often significantly less effective in reducing exhaust pollutants (see Catalytic converter#Rich Burn Spark Ignition Engines). As a result, the early fuel injected Indian two-wheelers are not likely to be more environment-friendly than their carburetted counterparts. However, these fuel-injected two-wheelers are expected to outdo their carburetted counterparts in the areas of pickup, mileage, durability, dashboard diagnostics and the customer appeal of a high-end technology. Who made pulsar bike? Best Answer - Chosen By Voters The Bajaj Pulsar is a motorcycle made by Bajaj Auto in Chakan, India. It debuted in November 2001. The first model featured conventional single spark plug technology, standard spring shocks, the popular round headlamp dome and a short wheel base. Both the 150 cc and 180 cc models featured disc brakes as standard equipment - something that was a novelty in India at that time. Discs continued to be the standard equipment on all other variants of the Pulsar - both for 150 cc and 180 cc . The 180 cc came factory fitted with Electric Start (ES) and twin tone horns while these two features were optional equipment on the 150 cc. Soon after Bajaj Auto Limited (BAL) decided to upgrade some items on the bike and rolled out the second generation Pulsar twins - they would feature DTSi technology along with an extended swing-arm which increased the wheelbase significantly ), twin horns as standard equipment on both 150 cc and 180 cc, the front end got a fairing with twin pilot lamps, and gas shocks were introduced. At this point - BAL gave a few options - the standard items on both the 150 and 180 were the gas shocks, twin horns and disc brakes. Only the electric start versions of either capacity bike would get a fairing for the headlamp. During both the first and second generation the 180 featured a 100/90 MRF rear tyre while the smaller 150 had 3.00 x 18". Both styles had steel rims and spokes. Sources: http://en.wikipedia.org/wiki/Bajaj_Pulsar http://in.answers.yahoo.com/question/index?qid=20061027053527AA0iQov |
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