How can outstanding environmental efficiency and fun-to-drive performance be achieved at the same time? One of Mazda's approaches to this dilemma was development of the Direct Injection Spark Ignition (DISI) TURBO engine in 2005. With usual injection systems, air and gasoline are mixed prior to injection. However, the DISI system injects only gasoline directly into the combustion chamber. The DISI TURBO takes the direct injection system one step further by adding a turbocharger to compress the air that is fed into the combustion chamber prior to ignition. This results in sharp acceleration, high torque at low and medium revs, superb response, low fuel consumption and clean exhaust emissions. In short, this epoch-making reciprocating engine fully satisfies all the prerequisites and surpasses the criteria for a vehicle that people want to drive.
Our first DISI TURBO engine, the inline-four MZR 2.3L DISI TURBO engine is mounted in the Mazdaspeed6 (Mazdaspeed Atenza), which went on sale in the spring of 2005. This achieved high output and torque levels (max. output of 200kW) on a par with a 3-liter V6 engine. At the same time, this car became the first turbocharged vehicle in Japan to be certified as an SU-LEV with fuel efficiency +5% on fuel efficiency standards for 2010. Recipient of the U.S. Word's 10 Best Engines 2006 in January 2006, this engine also won high marks and awards from automotive magazines and drivers in Japan and around the world.
- Main Specifications of the MZR 2.3L DISI TURBO Engine Mounted in the MPV
|Engine||Inline four-cylinder 2.3L DISI TURBO|
|Maximum output(NET)||180kW (245PS) /5000rpm|
|Maximum torque(NET)||350N·m (37.5kg-m) /2500rpm|
|10-15 mode fuel efficiency||2WD: 10.2 km/L
4WD: 9.4 km/L
|Exhaust Emissions||SU-LEV (75% lower than 2005 exhaust emissions standards)|