What is the difference between big vtec with small vtec?

The difference between "big VTEC" and "small VTEC" typically refers to the size and purpose of the camshaft profiles in Honda's VTEC (Variable Valve Timing and Lift Electronic Control) system. "Big VTEC" usually involves a more aggressive camshaft profile that provides higher lift and longer duration, optimizing performance at higher RPMs, which is often found in performance-oriented engines. In contrast, "small VTEC" refers to a less aggressive profile that enhances fuel efficiency and provides better low-end torque, making it suitable for everyday driving. Each configuration serves different driving needs and preferences.