19/10/2020
Ever heard of the term “my car makes 469 horsepower and 479 lb-ft of torque” in today’s short discuss auto sense Zambia will help you understand this statement so let’s dive in .........
The term 'horsepower' tends to be thrown around an awful lot during car conversation and if you're looking into buying a new car it's likely that you'll come across it, but it can be a source of confusion - what does it actually mean? Well, there are numerous ways to refer to the power output of a car's engine or motor, so it's sometimes less clear than it ought to be. For that reason, we've unravelled the mystery of horsepower and laid it bare right here.
Horsepower (hp) is the metric used to indicate the power produced by a car's engine - the higher the number, the more power is sent to the wheels and, in theory, the faster it will go.
However, in reality, there are other elements such as the weight of the car that will also affect a car's outright speed. A heavier car will need more horsepower to get moving - if two cars both produce 200hp, but one weighs 500kg more, the lighter car will accelerate quicker.
The power output of a car's engine can be measured in several ways. Horsepower measures the amount of power produced by the engine, but then you also have brake horsepower (bhp) which only measures the power that reaches the wheels - this will always be less and as such these two are not interchangeable.
Horsepower vs torque
Car manufacturers often quote hp for the headline figures, but scratch a little deeper into a car’s performance and soon you will come across torque. Don’t panic, this is not yet another unit of power. Usually measured in Nm (newton metre) or lb/ft (pound-foot), torque is a unit of how much turning force a car can produce.
This can be measured at the engine or the wheels (although there is no helpful adage of ‘brake’ at the beginning to differentiate the two). Torque is responsible for how quickly your car accelerates, the more torque, the easier it is to get your wheels turning.