How many watts can a 6-piston car engine make?

Answer 1

How big around are the pistons? What's the stroke of the engine? How fast is the engine going to be run? All of these things (and more) will determine an engine's horsepower rating. That rating can then be converted into watts.

Answer 2

A 6-piston car engine can generate anywhere from 300 to 600 horsepower, which is roughly equivalent to 223,700 to 447,400 watts. This power output can vary depending on the engine size, design, and performance upgrades.