Porsche: How the current GT3 sprints 🎥
TECHNICAL SHOWDOWN For years, Porsche has crowned the 911 series with the top GT3 model. For this particularly attractive variant, all the stops are pulled out in Weissach. The new Porsche 911 GT3 is full of technical highlights. The GT3's power unit is based on that of the 911 GT3 R and is also used in the 911 GT3 Cup. The aim at [...]
The GT3's power unit is based on that of the 911 GT3 R and is also used in the 911 GT3 Cup.
The aim in developing this model was to make the sports car even more powerful without neglecting its suitability for everyday use. Cooperation between the technicians from series development and the specialists from the motorsport department was important in this respect.
Driving situations in the wind tunnel for fine-tuning
Major progress was made in aerodynamics. For the first time, a suspended rear wing has been fitted to a Porsche production car. Its gooseneck suspension is used in a similar form on the 911 RSR GT race car and the 911 GT3 Cup one-make cup car.
Aerodynamicist Mathias Roll: "We developed the aerodynamics of the GT3 in around 700 simulations. For the fine-tuning, we spent more than 160 hours in the wind tunnel with the car. To match this, the front diffuser can be adjusted in four stages. Even in the delivery position, the new 911 GT3 generates 50 percent more downforce at 200 km/h than its predecessor."
Porsche doesn't just drive straight in the wind tunnel in Weissach, however, but simulates all conceivable driving situations. Yaw, pitch, and roll are also tested to simulate the physical influences on the track.
510 hp and maximum torque of 470 Nm
The test bench trials during the development of the 4-liter high-revving naturally aspirated engine were extremely complex.
Thomas Mader, Project Manager GT Road Engines: "The engine of the GT3 has run for more than 22,000 hours on the test bench. In the process, we repeatedly simulated typical circuit profiles and ran a high proportion of full load. "
The spontaneously responsive powertrain is based on the power unit of the 911 GT3 R racing car and is also used unchanged in the 911 GT3 Cup. At 510 hp, it is another 10 hp more powerful than in the predecessor model.
Maximum torque increased from 460 to 470 Nm. As in racing, a dry sump lubrication system with a separate tank takes care of the oil supply.
