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Lost In The Conversation? 3 Things You Should Know About Dynamometers

if your partner is into cars, but you’re not, you may feel like they’re speaking a different language when they talk about their cars. This is particularly true when you hear your partner talking about dynos. No, they aren’t talking about dinosaurs. Your partner is actually talking about a device that measures the speed, power and force behind an engine. Here are three facts that will help you understand how a dynamometer works.

It Measures Speed

You might not realize it, but you see a type of dynamometer every time you drive a car. In fact, you’re looking at it every time you check your speed. The speedometer in your car is a very basic type of dynamometer. The speedometer uses electromagnetism to rotate a magnet inside a small metal cup inside your car. As the car speeds up, the cup rotates causing the indicator to adjust, which shows up on your dashboard.

It Controls Chassis Movement

If you’ve ever been in an auto repair shop, you’ve probably seen another type of dynamometer – the chassis dynamometer, to be exact. The chassis dynamometer is basically a rolling road that allows your engine to power your car while remaining in one spot. The chassis dynamometer is useful for automotive tests that require your engine to be operating for proper readings – such as for smog checks or suspension tests where the wheels need to be in motion to determine proper balance. Without the chassis dynamometer, mechanics would have to conduct diagnostic tests while your car was being operated on the road.

It Measures Torque

When you’re working on a high-performance engine, torque is everything. Understanding the amount of torque on your engine will help prevent your engine from overheating and burning up. Too much torque and your engine will have too much power. Not enough torque and your engine will be lacking in power when you need it most. Your dynamometer will allow you to monitor torque, which will then allow you to monitor horsepower inside your engine, which means power will be maximized.

Just because your partner is in to high-performance engines, and you don’t know a thing about engines, it doesn’t mean you don’t have to be left out of the automotive conversations. The next time your partner starts talking about dynamometers – and the reasons they need a new one – you’ll be able to use the information you learned here to understand what they’re talking about and get involved in the conversation. Visit to learn more.