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 ...

Now you'll be able to at least know a bit about final drive ratios next time it comes up in conversation with your car ...

Building your 4x4 can be one of the most enjoyable and rewarding adventures that you will ever take. While we understand that not everyone is a master fabricator, simply getting to know the basics of ...

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 ...