The optimal gear ratio depends on how the engine fits the intended use of the boat. Courtesy Yamaha In every boat test we run, we include certain specs that we feel are valuable to our readers. Some ...

Engine capacity, transmission speed, and drivetrain options are important factors when shopping for a pickup truck. But there is one area that shouldn’t be overlooked, and that’s choosing the right ...

Until now, the How It Works series has focused on how an engine makes power. Now we'll fill you in on how engine power is made usable to propel a car. The parts used to get the car moving consist of ...

Optional axle ratios can tailor pickup truck power and efficiency to suit your needs as long as the gearing keeps the engine in its torque sweet spot. Often overlooked, optional gear ratios play a key ...