What are the differences between high-revving engines and low-revving engines?
1 Answers
High-revving engines and low-revving engines are distinguished as follows: Introduction 1: A high-revving engine is one where the maximum power and peak torque are achieved at relatively high engine speeds, typically with maximum power output occurring above 5,000 RPM and maximum torque above 3,500 RPM. Introduction 2: Low-revving engines generally produce high torque, making them easier to start and offering strong towing capacity, with peak torque typically appearing around 3,000 RPM. Compared to passenger car engines of the same displacement, their power output is relatively lower. Introduction 3: The key difference lies in the cylinder bore and piston stroke. Generally, high-revving engines have slightly larger cylinder bores because their piston strokes are shorter, which is necessary to achieve high rotational speeds.