Throttle is divided into high power and low power.

If the throttle valve is fully open, the engine can reach the highest speed and output the maximum power and torque. As for the actual output power and torque, it depends on the load. The difference between high-grade cars and low-grade cars in actual driving is only the difference between large load and small load. The engine with large load has large power output, and the engine with small load has small power output.

As for the torque of the engine, the maximum torque of the engine is not at the maximum power at the rated speed, but at the maximum power. If the load continues to increase, the engine speed will decrease and the torque will increase. For example, when a car climbs a high slope, the engine will send out the maximum torque.