We live in the age of downsizing – and the latest victims are the new Porsche 718 Boxster and 718 Cayman that will arrive next year, as they will use completely new 2.0 and 2.5 turbocharged gasoline four cylinder engines.
In keeping with the Porsche spirit, what we have here a flat-four units and after the rumor mill long predicted the updated Boxster and Cayman would make the switch from six cylinder naturally aspirated units to turbocharging we have some solid facts about the mills. Autocar was awarded the privilege to have the 718 Boxster out on a quick run and learned the smaller flat-four unit will be codenamed “9A2B4T.” It comes with a two-liter displacement and a single turbo and will deliver around 300 hp (220 kW) and 258 lb-ft (349 Nm) of torque, with the redline at about 7,400 rpm. This one will be followed by the successor of the Boxster and Cayman S, which has a 2.4- or 2.5-liter displacement and a power level of about 360 hp (265 kW) and 295 lb-ft (400 Nm), with the turbo tipped to also employ the proprietary Variable Turbine Geometry (VTG) already seen in action in the 11 Turbo.
According to Matthias Hofstetter, the development chief for the 718 powertrain, engine modifications didn’t come easy – they ultimately swapped the two front cylinders of the old engine with the turbo unit. The facelifted Boxster has gone up a notch in terms of weight, from 2,888 lbs (1,309 kg) to 3,086 lbs (1,400 kg), but performance will remain great – as usual – at 5.5 seconds to 62 mph (100 km/h) and a flat five seconds for the feistier Boxster S. Meanwhile, the overall fuel economy is around one liter for each 100 km better.