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In the realm of custom motorcycle builds, few names resonate as strongly as Maxwell Hazan of Hazan Motorworks. This master craftsman has embarked on the ambitious project of constructing a motorcycle powered by the legendary V8 engine from the Ferrari F355. While previous reports provided a glimpse into this extraordinary creation, recent developments showcase a stunning transformation from blueprint to reality.
The HF355 motorcycle is not merely a mechanical marvel; it represents a perfect blend of automotive excellence and motorcycle innovation. At its core is the impressive 3.5L V8 engine, originally designed for the mid-engine Ferrari F355, which debuted in 1994. This engine features advanced components, including a five-valve cylinder head and titanium connecting rods, delivering an output of 375 horsepower and 268 lb-ft of torque.
The engineering behind the HF355
Given its specifications, the HF355’s performance potential is remarkable. Weighing in at just 550 pounds, this motorcycle is lighter than many contemporary superbikes, including the Hayabusa. This impressive power-to-weight ratio, measuring 0.68 hp per pound, positions it among the elite in the motorcycle world. For context, a modern Formula 1 car, considerably heavier at 1759 pounds, produces approximately 1035 bhp, resulting in a power-to-weight ratio of 0.59 hp per pound.
Innovative design and construction
Hazan has meticulously crafted every aspect of the HF355 from the ground up. Initially, the project presented itself as simply an engine and two wheels. However, Hazan’s relentless pursuit of perfection has led to a fully functional motorcycle equipped with a sleek and aerodynamic carbon fiber body. The Moto2-inspired fairings not only enhance aesthetics but also contribute to the bike’s overall performance.
Addressing various technical challenges, Hazan noted, “The engine alone, without additional components like the flywheel, weighs about 237 pounds. The frame is uniquely designed, with everything bolted directly to the transmission and engine, making the fuel tank a vital part of the structural subframe.” This innovation reduces unnecessary weight while maintaining structural integrity.
Cooling and performance management
One intriguing aspect of the HF355 is its efficient cooling system. Contrary to expectations, Hazan emphasized that this powerhouse does not generate excessive heat. “This engine was built for a 3500-pound vehicle, equipped with air conditioning and catalytic converters. Its design prevents heat retention,” he explained. A ducted radiator beneath the bike is managed by four electric fans, all controlled by a sophisticated computer system.
Custom components and materials
Hazan’s craftsmanship extends beyond just the engine and frame. He has created many of the bike’s components from scratch, including the intake manifolds and the connections between the engine and transmission. “Experimenting with various metals was essential,” he remarked. “Some didn’t work as planned, but we eventually discovered the right materials.”
The weight-saving measures continue with the carbon fiber bodywork. Hazan showcased the one-piece tail section, which combines the seat pan and tank cover, weighing in at a mere three pounds. He described the process as both challenging and rewarding, emphasizing the importance of reducing weight without sacrificing strength.
As Hazan continues to refine and test the HF355, it is clear this motorcycle is not just a tribute to Ferrari’s engineering prowess but a testament to the art of motorcycle building. Each ride serves as an opportunity to fine-tune this extraordinary machine, bringing it closer to perfection. Stay tuned for further updates on this remarkable blend of Italian engineering and American ingenuity.