The Alfa Romeo Twin-Cam (commonly known as “Bialbero”) is a four-cylinder engine that began life in 1954. Alfa Romeo set out to produce a durable and lightweight engine through an aluminum alloy for the cylinder block. The design featured hemispherical combustion chambers and a matching aluminum alloy cylinder head. As we have established, this cylinder head had a pair of camshafts. They are driven through a timing chain and each camshaft is adjustable independently of the other to allow for timing changes. That said, as you can imagine, the engine has undergone some evolutions in 40 years.
The toughest of them all, however, was the 1965 Giulia Sprint GTA. It’s a real racing car, built to compete in roaming car races. The Twin-Cam has benefited from really extensive power development thanks to the 45mm and one-stroke buretos of the cars. -Specific cylinder head of the engine. Increased airflow and dual spark plugs for more efficient use of fuel resulted in a total output of 115 horsepower. This combination of car and engine won Division 2 of the European Touring Car Championship in 1966, 1967 and 1969.
[Featured symbol via Thesupermat Wikimedia Commons | Trimming & Climbing | CC BY-SA 3. 0]
The latest edition of the iconic Alfa Romeo Twin-Cam arrived with a displacement of two liters, fuel injection and a total output of 120 horsepower. Unfortunately, after the 1994 design year, Alfa Romeo withdrew its offering from the U. S. market and discontinued the Spider styling. In turn, it also ended production of the iconic Twin-Cam engine exactly 40 years after it hit the market. Yes, Alfa Romeo recently made a triumphant return to the U. S. market with a handful of premium models, adding the 2021 race-inspired Stradale Triyeto supercar, but the Twin-Cam engine is still a thing of the past.