It wasn’t that long ago that we thought the days of the naturally aspirated Porsche 911 were over. The 991.2 GT3 RS entered the scene a few years ago, and the Carrera then had turbochargers. With observations of prototypes of the 992 series 911 already cropping up, it was widely believed that the next GT3 would use turbos if it wanted to evolve and improve the lineage.
Friends, we are so happy to be wrong on this. If you want to know why, just click play on the video above if you haven’t already. And you’re right, you’d better crank up your speakers, because few things sound as good in the automotive world as a naturally aspirated Porsche flat-six embracing 9,000 rpm.
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This clip comes from NM2255 Car HD Videos on YouTube, and admittedly we don’t have a lot of context or story to offer. A link in the YouTube description takes us to the Italy-based Biesse Racing Facebook page. The car is a fully stock 2021 911 GT3 and it has done several pull-ups on a test bench, each one looking gorgeous. A Biesse Racing Facebook post tells us that the car was developing 500 horsepower (373 kilowatts), and in this particular case, that’s an estimated horsepower to the crankshaft instead of the wheels.
Considering that Porsche rates the new GT3 at 502 hp (374 kilowatts), the engine seems right on target. In fact, it might hide some extra power, as the air temperature in the dyno room would have been 35 degrees Celsius (95 degrees Fahrenheit). Naturally aspirated engines are much more sensitive to temperature changes than supercharged engines, and there was a question regarding the quality of the fuel. Considering all the factors that go into estimating engine power to the crankshaft from chassis dynamometric pull, justifying a mere two hp difference from stock is totally unnecessary here.
Ultimately, apart from the owner of the GT3 and the tuner doing the job, none of the numbers matter. It’s all about sound, so sit back and play (and replay) the music of unassisted internal combustion power as driven by Porsche.