Bajaj Auto launches DTS-Si engine

Bajaj Auto, has launched its new ‘Digital Twin Spark - Swirl induction’ (DTS-Si) engine. The first product, which will be powered by this engine, would be launched in September 2007. The new 125cc engine with DTS-Si technology will give an amazing mileage of 109 km per liter under ideal test conditions surpassing the mileage of all current 100 cc motorcycles.

With this breakthrough there is a huge potential and opportunity to upgrade the 100 cc customer with an engine which offers the best of both worlds – 100cc mileage and 125 cc performance. Designed and developed completely by Bajaj Auto R&D, the technology promises to revolutionalise the industry with India’s most fuel-efficient two-wheeler engine.

Bajaj had first dramatically improved on existing engine technology in 2003 when it launched the DTS-i (Digital Twin Spark-ignition) engine with two Spark plugs located at opposite ends of the combustion chamber (as compared to a single spark plug in conventional 4-stroke engines) to achieve faster and more efficient combustion. The DTS-i technology offered better performance, improved fuel efficiency with lower emissions and helped establish the Bajaj Pulsar and then the Bajaj Discover as leaders in their respective segments.

The DTS-i engine can be further engineered to deliver either exceptional performance or exceptional mileage. Bajaj worked on the mother DTS-i technology to design the DTS-Si engine to deliver outstanding mileage. The DTS-Si technology gives the highest possible fuel efficiency by introducing ‘Swirl induction’ to the DTS-i engine to create turbulence in order to achieve extremely efficient combustion.

“We realized that at light loads on DTS-i, an opportunity existed to improve the combustion even further. When burning lean air-fuel mixtures through the two spark plugs, the combustion conditions could be further improved by generating high turbulence in the combustion chamber. Once the solution was arrived at, the design and geometry modifications followed,” said, R&D head, Bajaj Auto, Abraham Joseph.

Bajaj enjoys a market share of 47 percent in the growing and profitable 125 cc and 150 cc segments, as against a smaller share of 24 percent in the declining but larger 100 cc segment. “Bajaj will offer customers a value proposition much superior to the currently overpriced and underperforming 100cc products with the launch of an all new bike with the DTS-Si engine next month. 100cc customers will upgrade to this 125cc bike that gives superior mileage and superior power,” said general manager (marketing), Amit Nandi.