How much speed and power with 4 pistons?

The speed and power generated by a four-piston engine depend on various factors, including engine design, displacement, tuning, and intended application. Generally, four-piston engines can provide a good balance of power and efficiency, making them suitable for a variety of vehicles. For instance, in high-performance applications, such as sports cars, a well-tuned four-piston engine can deliver significant horsepower while maintaining relatively high RPMs. However, specific power output can vary widely across different models and configurations.