Singer Vehicle Design is well known for providing lavish attention to the Porsche 911s it restores, but this, man, is something else. The California company announced today that it’s collaborating with Williams Advanced Engineering—yes, that Williams—on a modified air-cooled, naturally aspirated 4.0-liter Porsche flat-six that makes 500 horsepower.
-For those keeping score at home, this engine matches the power output of the current 911 GT3, despite the fact that it relies on a belt-driven fan for cooling.
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Singer and Williams tapped Hans Mezger, the man who designed Porsche’s first flat-six and many of its greatest race engines, as a technical consultant for this project. This engine is actually a modified version of a Mezger design, the 3.6-liter flat-six from a 1990 911, but its spec reads more like something designed for F1 competition.
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It uses four-valve cylinder heads, dual oil circuits, titanium connecting rods, aluminum throttle bodies, carbon-fiber intake trumpets, and a carbon-fiber airbox. There are also ram-air intakes built into the 911’s rear quarter-windows and a titanium and Inconel exhaust. Singer says it’s good to rev beyond 9000 rpm.
-It must sound quite nice.
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The engine pictured here is just a rendering, but it will make its first real-world appearance in a 911 restored for Singer client Scott Blattner. We should have additional details about this Singer-restored 1990 911 in September.
-Singer said that Williams worked on other elements of Blattner’s 911 that will be announced shortly. Eventually, Singer will offer these Williams-enhanced components as part of a stand-alone collection of lightweight and high-performance mods.
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- Singer Vehicle Design’s Porsche 911s at the Detroit Auto Show
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- Butzi’s Rough Draft: The Porsche T7 Concept Was the 911’s Direct Forefather
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- Porsche 911: Tests, Reviews, Specs, and More
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Considering most Singer clients pay more than $600,000 for the company to restore their old 911s, it wouldn’t be surprising to see cars with this engine crest the $1 million mark. Given what we can see here, it might just be worth it.
-This story originally appeared on Road & Track.
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