Body and Chassis
When the day came for the engineers to redesign the body and chassis of the Mazda6, they were sent home, with the entire team being replaced by a magician with an enormous hat. In came the old model and the fresh one was pulled out by its mirrors, which have been moved to the doors.
The result was a weight saving of over 300 lbs (150 kg), despite a torsional rigidity boost of 30 percent, and, just as important, an increase in size. The Mazda6 is now 5.3 inches (13.4 cm) longer, 1.7 inches (4.3 cm) wider and 0.4 inches (1 cm) higher.
As for the final act, this is represented by a drag coefficient of 0.26, the best in the class.
The big news for the engine bay of the 2014 Mazda6 is a 2,191 cc, four-cylinder oil burner. However, only saying that the unit delivers 175 hp at 4,500 rpm and a peak torque of 310 lb-ft (420 Nm) at 2,000 rpm is like describing a cake by listing its ingredients.
This is a diesel that learns tricks from gasoline units. For starters, while the average oil burner ignites fuel by compressing it at a ratio of 18:1, Mazda’s engine only uses a ratio of 14:1. This reduces the loads and temperatures generated by the blast. Thus, there’s no need for a heavy iron block, an aluminum one handles the job just fine.
What’s more, the engine’s internals are lighter, which makes it more efficient and eager to be revved (read: 5,200 rpm).
In addition, the smaller combustion temperatures result in less NOx being generated. Together with the variable lift for the exhaust valves, this allows the unit to make due without using the NOx-cutting exhaust gas treatment, making the hardware simpler and, once again, lighter.
The Mazda6 comes with a longer wheelbase of 111.4 inches (283 cm), which is aimed at improving stability. In addition, the configuration of the multi-link rear suspension was tweaked with the aim to improve the ride.
As for the power steering, this has moved from a hydraulic to an electric setup, with the system being tweaked to deliver linearity.
One of practical jokes that the 2014 Mazda6 plays on the fuel pump is its i-ELOOP (Intelligent Energy Loop) brake energy regeneration system. Lift off the throttle and the vehicle starts harvesting deceleration energy via a capacitor. The system doesn’t want to hear about the car’s battery, with the capacitor using a parallel circuit to power the auxiliaries. The 22-lbs (10 kg) hardware can provide electrical current to the car’s sub-systems for up to one minute.Continue reading
MAZDA6 technical data summary
Engine: 2191 cm3 cc L4 Diesel
Dimensions: 191.7 in OR 4869 mm length / 72.4 in OR 1839 mm width / 57.1 in OR 1450 mm height
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