12 I w i t h d r e a m s The innovative and amazingly compact <strong>Honda</strong> i-DSI engine, which stands for intelligent Dual and Sequential Ignition, features two independently-firing sparkplugs per cylinder for greatly improved fuel consumption. Making the world a better place, one carefully consumed litre of fossil fuel at a time.
eakthrough The new <strong>Honda</strong> Jazz and City are equipped with an i-DSI engine. * Actual models may vary in detail from images shown. The year was 2001. The date, 18 May 2001. And on that spring Friday in Tokyo, <strong>Honda</strong> Motor Co. Ltd. introduced the world to its latest i-series engine: the 1.3L, 4-cylinder <strong>Honda</strong> i-DSI (intelligent Dual and Sequential Ignition) engine. It was a revolution in engineering and design. And six years later, it still is. Countless hours of meticulous research and careful planning have resulted in an incredibly compact <strong>Honda</strong> i-DSI engine. It’s also very lightweight, thanks to reduced valve angles that create a smaller combustion chamber, a more compact air cleaner, a serpentine auxiliary drive system, a plastic intake manifold and an innovative stainlesssteel exhaust pipe. This lightweight, high-performance p o w e r h o u s e p u m p s o u t h e a p s o f horsepower and high torque in the low to mid rpm range, via a high-tech process of intensive combustion to achieve ultrahigh fuel ratings. And of course, since it’s so very the <strong>Honda</strong> i-DSI puts out remarkably clean emissions that are much more gentle to the environment. Perhaps quite surprisingly, the biggest secret behind this amazing little engine is deceptively simple: the <strong>Honda</strong> i-DSI is equipped with two sparkplugs in each of its newly designed, compact combustion chambers. To achieve the intense fuel combustion – consistent at any rpm — that is the hallmark of the <strong>Honda</strong> i-DSI engine, each cylinder’s sparkplugs in a different order, constantly adjusting to suit engine rpm and load. The resulting intelligent, dual-point sequential ignition control is what creates the improved burn and reduced emissions. Going into greater detail, each cylinder’s two sparkplugs are arranged diagonally. In this way, propagation in the combustion chambers is markedly accelerated. The air-fuel mixture’s rapid combustion produces a very high energy output with only a minimum amount of petrol required. Not only is engine knocking – an unavoidable, unwanted reality that’s b e e n p r e s e n t s i n c e t h e d a w n o f motorised travel – effectively brought under control, but intensive combustion at any rpm also allows a far higher compression ratio. According to <strong>Honda</strong> testing, the <strong>Honda</strong> 1.5L i-DSI engine achieves a maximum output of 88PS at 5500rpm and a maximum torque of 131N•m at 2700rpm, compared to the 1.5L VTEC’s 110PS at 5800rpm and 143N•m at 4800rpm. And what about the fuel ef res? P a i r e d w i t h H o n d a ' s n e w l y - developed, lightweight and compact CVT (Continuously Variable Transmission) and Electric Power Steering (EPS), the 1.5L i-DSI managed an astounding 26.2km/L at F.E.A.T., the Fuel Ef y A u t o m o b i l e Te s t h e l d a s p a r t o f <strong>Honda</strong> <strong>Malaysia</strong>’s Eco-Run event on 18-20 May 2007. Results like that mean it’s more fuel ef than the 1.5L VTEC. In fact, the <strong>Honda</strong> i-DSI is in the world’s top class o f s t a n d a rd s f o r p e t ro l - p o w e re d production vehicles, easily making it compliant with 2010 fuel ef y standards. Even more importantly, in light of the harsh reality of the environmental chaos caused by burning fossil fuels, harmful exhaust emissions have also been greatly reduced. The <strong>Honda</strong> i-DSI e n g i n e ’s c l e a n p e r f o r m a n c e w a s recognized by Japan’s National Ministry of Transportation and awarded their . The lightweight, compact and highp e r f o r m a n c e H o n d a i - D S I e n g i n e ready to create an entirely new breed of small car, and one able to achieve ultrahigh fuel ef and clean emissions. And since it’s a <strong>Honda</strong>, you can rest assured superior performance is also an integral part of the package. The <strong>Honda</strong> i-DSI engine. Built with a passion for the future. w i t h d r e a m s I 13
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