Shane Lee
12-02-2009, 11:34 AM
While there were pretty cars on Mazda's stand at the Tokyo motor show, some new engines were the big stories from the carmaker. The company wants to improve the fuel economy of all its engines by 30 percent by 2015.
So, to kick off, it's developed a new 'SKY-G' petrol engine which uses an advanced direct-injection system that can apply several different settings to maximise economy. There's also a new, low-friction engine block.
Mazda says that the SKY-G engine will be around 15 percent more efficient than its current 2.0-litre petrol engine.
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Even bigger improvements are claimed for the new 'SKY D' diesel engine. The engine has a low-friction engine block, but gets a two-stage turbocharger and piezo fuel injectors for up to 20 percent better fuel economy than the company's current 2.2-litre diesel engine. And Mazda's SKY-Drive, a new transmission, aims to bring a five percent increase in fuel economy and a 'more direct, sporty feel'. These engines and gearboxes won't be available until 2011.
So, to kick off, it's developed a new 'SKY-G' petrol engine which uses an advanced direct-injection system that can apply several different settings to maximise economy. There's also a new, low-friction engine block.
Mazda says that the SKY-G engine will be around 15 percent more efficient than its current 2.0-litre petrol engine.
6293
Even bigger improvements are claimed for the new 'SKY D' diesel engine. The engine has a low-friction engine block, but gets a two-stage turbocharger and piezo fuel injectors for up to 20 percent better fuel economy than the company's current 2.2-litre diesel engine. And Mazda's SKY-Drive, a new transmission, aims to bring a five percent increase in fuel economy and a 'more direct, sporty feel'. These engines and gearboxes won't be available until 2011.