Extreme sports cars have to undergo many demanding tests during development, but the new Porsche 911 GT3 had to withstand a really extreme load.
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During the introduction of the new generation 911 GT3, Porsche representatives emphasized that they had applied racing technologies to the new model more consistently than ever before. However, quite different demands are placed on the road car than on the racing special, which goes to a specialized workshop after each race.
In order for the carmaker to be sure that the new GT3 will be able to deliver top performance in the long run, even on ordinary roads, it has prepared an unconventional stress test. On the famous Italian Nardo circuit, owned by Porsche, the new 911 GT3 had to cover 5,000 kilometers at a speed of 300 km / h. And the only break was the fuel stops.
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The testing primarily tested the capabilities and endurance of the 4.0-liter flat six-cylinder, which, according to the carmaker, should be almost identical to the engine of the GT3 Cup racing model. Thanks to various modifications, the engine can run up to 9000 rpm, offers the highest output of 375 kW (510 hp) and 469 Nm, with the PDK transmission it reaches 100 km / h in 3.4 seconds and runs up to 320 km / h.
„In total, the engine of the new GT3 ran on a test circuit of 22,000 hours. During testing, we also often simulated typical profile circuits and let the engine run at full throttle for an extended period of time, ”Said Thomas Mader, project manager of Porsche GT Road Car Engines, for testing.
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In addition to the engine, however, the optimized aerodynamics were also tested, which also significantly contributed to the car’s ability to run at 300 km / h for almost 16 hours at a time. The designers borrowed some ideas not only from the GT3 Cup model, but also from the 911 RSR model.
The body underwent a number of modifications, but the most significant took place in the area of the front splitter and especially the rear wing, which received handles in the style of swan necks. The wing is thus attached from above, so that air can pass under its lower surface without unnecessary turbulence.
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The aerodynamics were tested in about 700 simulations and the car spent a total of about 160 hours in a wind tunnel, where even the smallest details were fine-tuned. At 200 km / h, the new Porsche 911 GT3 creates up to 50% more downforce than its predecessor – in the normal setting. When set to maximum pressure, the increase is up to 150%.
As Porsche adds, the new generation GT3 benefits primarily from the experience gained by the carmaker’s technicians on racing machines and on racing tracks. “When the same technicians who develop our race cars work on the design of the new GT road cars, it’s the most immediate technology transfer I can imagine,“Said Andreas Preuninger, Director of the GT Model Line.
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