Mazda changes the way turbochargers deliver power in 2018

By Product Expert | Posted in Mazda6 on Monday, May 21st, 2018 at 9:18 pm
A head-on photo of the 2018 Mazda6 parked in in an alley.

How is 2018 Mazda6 turbocharger different?

In a thankfully bygone era, vehicle buyers had to choose between performance and fuel economy. One of the most exciting trends in the automotive industry class occupied by the new Mazda6 sedan (now available at the Gorman McCracken Mazda showroom), is the implementation of turbochargers to naturally efficient four-cylinder engines. By no means is the automaker the first one to add this feature to its powertrains – but they have changed the way this component delivers power without sacrificing fuel efficiency. So, how is the 2018 Mazda6 turbocharger different? To put it simply, the Dynamic Pressure Turbocharger can spool up faster and at much lower RPM than many competing iterations. Let’s take a look.

READ MORE: Engine technology isn’t the only upgrade in the 2018 Mazda6

Mazda Dynamic Pressure Turbocharger

Regardless of how much power an engine can create, all turbocharged engines suffer from a phenomenon called, turbo lag. Turbochargers work by using captured exhaust gasses to spin an impeller which draws in more air, which in turn helps the engine produce more power. The best part, this technology is very scalable, so extra horsepower and torque are produced without burning through fuel.

The Mazda Dynamic Pressure Turbocharger, equipped to the SKYACTIV-G 2.5T on the Grand Touring (with the automatic transmission), Grand Touring Reserve and Signature trims of the 2018 Mazda6. Engineers from Mazda who developed the new turbocharger for the 2018 Mazda6 took the same principles commonly used by teams attaching turbochargers to engines but deployed them in a couple of very innovative ways.

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Overview of how the new Mazda turbocharger works

First, Mazda engine builders shortened the distance between the exhaust manifold and the turbocharger inside of the SKYACTIV-G 2.5T engine. This increases efficiency by preventing as much unnecessary loss of gas volume and heat as possible.

Next, the team of engineers tweaked some principles used by variable geometry turbochargers, except they built the entire unit inside of the engine’s exhaust manifold. What is very impressive about the new Mazda turbocharging system is that it starts to spool up at as little as 1,620 rpm. When the engine is operating below that threshold, the exhaust gas is routed through an open but narrow opening to build up the necessary pressure. Think of putting a thumb over a garden hose as an example.

Above 1,620 rpm, a gate is opened up to allow as much exhaust gas as possible to reach the impeller blades. If you at the video embedded on this page, the experts from the Engineering Explained vlog will clearly illustrate and do a good job of explaining this new Mazda development.

Now that the 2018 Mazda6 is available in our showroom, you can schedule a test drive with a Gorman McCracken Mazda sales professional today by calling the showroom.

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