Monday, March 26, 2018

Why Porsche Won’t Turbocharge the Next 911 GT3 and GT3 RS by Chris Perkins

RealAutoTips. - This is information for you from Porsche 911 car with the article that titled with Why Porsche Won’t Turbocharge the Next 911 GT3 and GT3 RS by Chris Perkins and published in Roadandtrack site.

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With a new 911 on its way and the Carrera lineup featuring exclusively turbocharged motors, there's a suspicion that the next Porsche 911 GT3 and GT3 RS might move to turbo powerplants. We don't think this will happen, for a very specific reason.

It has to do with Balance of Performance (BoP) The most dreaded acronym in sports car racing plays a big role in the continued existence of Porsche's naturally aspirated flat-six. At the premiere of the mid-engine 911 RSR race car back in 2016, Dr. Frank-Steffen Walliser, head of Porsche Motorsport, explained why.

"We opted for a normally aspirated engine mainly for weight reasons," Walliser told R&T at the time. "Because power and torque are balanced by BoP anyway, we said 'what is best for the car?' And less weight is always better [...] that's why we opted for natural aspiration."

Without turbos, Porsche's racing engine is lighter. In the BoP era, where power-to-weight is theoretically equalized among all competitors, a lightweight engine means the ability to add more weight to the car in the form of aerodynamic devices; it also allows engineers to fine-tune the car's weight distribution as they add ballast to get up to the minimum weight prescribed in the rules.

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