This means that both the intake and exhaust camshafts have adjustable timing, which helps optimize engine performance and fuel efficiency across the rev range.
More specifically:
* Intake camshaft: The intake camshaft can be adjusted by up to 45 degrees. This allows for more precise control of valve timing and lift, improving performance and fuel efficiency.
* Exhaust camshaft: The exhaust camshaft can be adjusted by up to 32 degrees. This helps to optimize exhaust gas flow and reduce emissions.
It's important to note that the 2010 BMW M3 uses a single overhead camshaft (SOHC) design with a total of four valves per cylinder (two intake and two exhaust).
The camshaft operates through a chain drive system, not a belt, which ensures greater durability and reliability.
