Hey, guys, welcome to another one of my detailed reviews. This time around I wanna talk to you about the Toyota Tacoma 2016 Engine. Yep, that’s a big topic right now, ’cause, in case you didn’t know, the brand-new 2016 Tacoma will (finally!) have a new 3.5-lit V-6 engine at its core; and that’s not even half of the story. This new engine we’re talking about is gonna be using the so-called “Atkinson Cycle”, that’s doing really-really well right now in the Prius cars. With this new technology Toyota promises to provide better fuel-efficiency. That’s great, but it could cause some confusion among the oldschool fans – that’s why I’m doing this review for you today: so that there are no mix-ups.
A Brand-New Technology
So, before we dig into the Atkinson cycle, let me just say, that the vast majority of gas-based engines today use the “Otto” cycle method. The name comes from the German manufacturer, Nikolaus Otto, who first demonstrated it in 1876. That’s the usual cycle for us today: you got intake, then compression, power, and finally – exhaust. The piston fires up with fuel, then the crankshaft turns, and the engine runs. As a matter of fact, the “Otto” is so popular, that we don’t think of it as a cycle. We just think of it as the gas-powered engine – that’s it. “Otto” was the king of the road, until Toyota introduced the Prius.
Toyota Tacoma 2016 Engine Analysis
So, how does the Atkinson work? To put it really simply, it manages to use all the available energy in the cylinder, by keeping the intake valve open for a longer period of time, which creates a shorter stroke of compression. The Prius engine showed some impressive results: the compression ratio was 8:1, with the expansion ratio of roughly 13:1. And that’s not just numbers – these ratios allow the engine to be about 14% more efficient in terms of power per fuel. Yep, we’ve got a little revolution upon us – it’s a cause for celebration! And the Tacoma 2016 Engine is confirmed by Toyota to use a variations of the Prius motor, so, it’s official now.
With the Atkinson cycle, after the power stroke is complete – that’s when the 4 cycles are over – the cylinder becomes almost pressure-free. And, as the piston moves forward (downward, to be exact), a fresh fuel portion gets pumped in. Then, the intake valve is shut – and the net effect is that the stroke is a lot shorter.
Problems And Solutions
One of the downsides to the Atkinson cycle is that you’ll still need to clean the cylinder of the exhaust gases, as there’s no ambient pressure to take care of that. However, Toyota managed to solve this inconvenience: they introduced a “tumble flow” system in the Prius – this unique system makes use of the atmospheric pressure to get rid of the exhaust gases.
The second problem was with the narrowed rpm range. Again, in the Prius, Toyota solved it with a combination of an electric motor and a variable transmission. The Tacoma 2016 Engine will feature the D-4S technology.
So, the Toyota Tacoma 2016 Engine will feature the Atkinson cycle, which is more efficient than the Otto cycle, and will provide better fuel-efficiency. How will this new technology affect the way the Truck behaves? Well, we’ll just have to live and see.
Watch now this video: 2016 Toyota Tacoma 3.5-Liter Atkinson V6 Equipped D-4S Technology.