Runge Cars Revolutionizes Classic Porsches with a New Air-Cooled Flat-Eight Engine
In an era where the future of internal combustion engines is frequently debated, Runge Cars, a small but ambitious workshop in Minnesota, has defied expectations by unveiling a remarkable new powerplant: the 5.3L air-cooled flat-eight engine, dubbed the 'Hetzer.' This innovative creation seamlessly merges cutting-edge engineering with classic automotive heritage, offering a high-performance solution for enthusiasts of vintage Porsche models. The Hetzer engine is not only a testament to traditional craftsmanship but also a bold statement on the enduring appeal of air-cooled technology in the 21st century.
The newly introduced Hetzer engine showcases a blend of contemporary and traditional design principles. It features dual overhead cams, four valves per cylinder, and a robust 12:1 compression ratio, allowing it to achieve an impressive redline of 9,000 RPM, with a cut-off at 10,000 RPM. While specific power figures are yet to be officially released, industry experts, including 'Car and Driver,' anticipate an output of approximately 600 horsepower. This figure significantly surpasses that of many motorsport-derived flat-six engines, such as those found in the 911 GT3. A key highlight of the Hetzer is its direct bolt-in compatibility with existing air-cooled Porsche 911 platforms, making it an attractive upgrade for classic car owners.
Christopher Runge, the visionary founder of Runge Cars, emphasized the collaborative effort behind this engineering marvel. He stated that by working with engineers from Swindon Powertrain and air-cooled specialist Sol Snyderman, they successfully integrated modern technological advancements with time-honored craftsmanship. The result is a unique engine that pushes the boundaries of performance while honoring the rich legacy of air-cooled automotive design.
Beyond the engine itself, Runge Cars is also introducing the R3, a mid-engined supercar designed to be powered by the Hetzer. This bespoke vehicle weighs a mere 1,720 pounds and will offer a pure driving experience with a six-speed manual transmission. The R3's development spanned seven years, reflecting the company's commitment to meticulous design and engineering. Its neo-retro aesthetic draws inspiration from mid-century racecars, updated with modern sensibilities.
While details regarding pricing are still under wraps, Runge Cars has indicated that orders for both the flat-eight engine and the R3 supercar will commence later this year. Given Runge's extensive experience of over fifteen years in crafting hand-built automobiles, and the premium nature of their limited-volume products (such as their 2.4L DOHC flat-four engine, which exceeds $250,000), it is clear that these offerings will cater to a discerning clientele. For Runge, achieving automotive perfection is a commitment that comes at a significant cost, reflecting the exclusivity, superior craftsmanship, and profound engineering dedication embedded in each creation.