الاثنين، 17 مارس 2014

Porsche 919 Hybrid Le Mans Prototype


It's not the dog in the fight, but the fight in the dog.


Porsche 919 Hybrid Le Mans Prototype
Porsche returns to Le Mans prototype racing this year, and it’s invading the French 24-hour trial with the 919 hybrid you see here. Outwardly, the 919 hybrid doesn’t look all that different from, say, Audi’s dominant R18 e-tron Quattro, with its low, wedge-shaped body and central vertical stabilizer. The only Porsche-esque styling cues are the quad-beam headlight units that echo the LED headlights offered on the Cayenne, Panamera, and 918 Spyder, plus a Porsche badge. What truly sets the Porsche apart, however, are its novel hybrid powertrain and bizarre engine layout.
Wait, It Has a V-What?
Taking a page right out of the venerable Saab Sonett’s playbook, Porsche hath bestowed the 919 with a mid-mounted V-4 gasoline engine. Okay, so unlike the 1970s-era Saab coupe’s, which was carbureted, the 919’s 2.0-liter gas mill features turbocharging and direct injection. Oh, and it puts down “around” 500 horsepower and can rev to 9000 rpm. To this banshee Porsche has strapped a generator driven by the engine’s (sure to be prodigious) exhaust pressure, which sends electricity to a centrally mounted lithium-ion battery pack. A motor/generator lives on the front axle and can recuperate kinetic energy during braking and give the 919 short bursts of accelerative assistance when fed by the battery. 


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