Tuesday, December 23, 2008

Bajaj Pulsar 220 DTS-Fi

The Bajaj Pulsar 220 DTS-Fi is the latest addition to the Pulsar family of motorcycles from Bajaj Auto. Features differentiating this bike from other members of the DTS-i family include oil cooled, fuel injected engine, front and rear disc braking, tubeless tyres, a digital speedometer console (recently introduced in all other Pulsar editions) and parabolic/ellipsoidal projector headlamps.

Features and specifications

With this introduction, Bajaj Auto would achieve a close second in the race to offer a microprocessor-based fuel injected motorcycle to Indian customers, after Hero Honda's 125 cc Glamour FI motorcycle.The new Pulsar has a longer wheelbase than its predecessor, factory-fitted front and rear disc brakes and detailed digital instrumentation. The Pulsar DTS-Fi generates a maximum power of 20 bhp and a maximum torque of 19.12 N·m (14 lb·ft).

Engine technology

DTS-Fi stands for "Digital Twin Spark Fuel Injection", a ‘Bajaj Patented Technology’. In fuel injection the conventional carburettor has been replaced by injector which injects fuel in to the engine in a spray form based on the instructions of the Engine Control Unit (ECU) which is a part of the Engine Management System EMS. The Electronic Control Unit (ECU) is microprocessor based and is the brain of the fuel injection system. It processes information sent by various sensors and instantly determines optimum fueling and spark timing for various engine operating conditions. The ECU contains detailed information of the engine's characteristics from which it picks the necessary data for commanding both fueling & spark timing.

The main advantages of Fuel Injection are: a. Increased power output for same cc. b. Better low end torque. c. Lower fuel delivery & optimisation of spark timing. d. Improved cold start, quick warm-up and excellent response to sudden acceleration. e. Lower emission levels. f. Self detection and communication of fuel system malfunctioning if any.

Engine: 220 cc single, 2 valve, 4 Stroke, EFI, air                  cooled with oil cooler 
              Bore x Stroke: 67 mm x 62.4 mm                             Compression ratio: 12.8:1
Top speed: 145 km/h (90 mph) (estimated)
Power: 20 PS (20 hp/15 kW)
Torque: 19.13 N·m (14 lb·ft)
Transmission: 5 speed manual sequential
Suspension Front: 37 mm telescopic hydraulic type 130 mm (5.1 in) travel
Rear: Ellipitical section swingarm with twin hydraulic gas-charged shock absorbers; 101 mm (4 in) travel
Brakes Front: 260mm disc
Rear: 230 mm disc
Tires Front: 90/90-17 tubeless
Rear: 120/80-17 tubeless
Weight Approx.: 150 kilograms (330 lb)

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