The 2021 Porsche 911 Turbo S uses a 3.8-liter twin-turbo flat-six engine churning out 641 hp and 590 lb-ft (830 Nm) of torque and speaking with Road & Track, Porsche 911 chief engineer Dr Frank-Steffen Walliser revealed just why the car has so much power.
Peak figures for the 991-generation Turbo S sat at 580 hp and 516 lb-ft (700 Nm) of torque, making it one of the quickest cars on the planet. For the new car, however, Porsche wanted to make it significantly quicker and according to Walliser, that meant giving it far more power than ever before.
“If you take a 580-hp car and add another 20 or 30 extra [hp], you won’t really feel it,” Walliser said. “Maybe you can measure it, but the reason for a new Turbo is that you feel something, that you feel a difference…we wanted to really make a step,” he revealed.
While the 991 Turbo S also used a 3.8-liter twin-turbo six-cylinder, the new car doesn’t feature an uprated variant of that engine. Instead, the 992’s engine is based on the 3.0-liter engine found in lesser Carrera models and has the same 3.8-liter displacement as the old engine because that results in the ideal ratio between bore and stroke for such an engine.
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The added grunt of the new Turbo S allows it to rocket to 62 mph (100 km/h) in a blistering 2.7 seconds, 0.2 seconds faster than before, and to 124 mph (200 km/h) in 8.9 seconds, a full second quicker than the previous-generation model. During everyday driving, Walliser says owners will immediately feel the added torque.
“You can really feel the size of the engine, and once the turbos reach boost pressure, it’s really impressive. The car is a little bit more raw,” he said.
Interestingly, Porsche has yet to announce the ‘regular’ 911 Turbo model but plans on doing so later this year.