How do you measure bhp

There are a number of common standards and types of horsepower. Two common definitions used today are mechanical horsepower or imperial horsepower , which is approximately James Watt, a Steam engine pioneer, wanted to measure the performance of his engines against the horse that had previously operated.

Later,this unit is used to measure output of different type of piston engine,turbines,electric motor as well as other machineries. Or, we can say that One horse power is equal to work done by a single horse in lifting the weight of 75 kg to one metre height in one second. If Indicated power is in the unit ft -lb per min and we divide that Indicated power by 33, then we get Indicated Horse power. Brake horsepower is the measurements of the power of the engine at the flywheel or crankshaft after the engine losing power due to the drive train and the resistance of the gearbox.

Note :-If we know power at the flywheel or crankshaft of the engine in ft -lb per min. Bhp appears to be the figure usually calculated and used in Europe, while hp is used in the United States.

Horsepower is measured using a tool called a simple dynamometer, while bhp uses a brake type dynamometer. From this data, horsepower can be calculated. One horsepower equals 33, foot-pounds of work per minute. Other sources give alternative definitions, with some stating that hp has losses subtracted from it and is typically less than bhp.

One source cites horsepower as the output of a mechanical or electrical system, while the brake horsepower is the output of only the engine the exact opposite of what we state above.

Incidentally, Bugatti Veyron is one of the most powerful cars in the world. Higher the power an engine can produce means that it can do more work OR give higher performance. Thus to achieve higher vehicle speeds, you need more power. Remember, the fuel consumption increases with engine speed. Note: This range varies from vehicle to vehicle. The power output varies from engines to engines which mainly depends on the following factors -.

To get more speed, you need more power. And to get more power, you need to burn more fuel. Only engineers tend to talk about indicated horsepower, and then just amongst themselves. However, it is worth noting, that depending on who you speak to, wheel horsepower and BHP are often used interchangeably — again adding to the confusion. Brand loyalty evaporates as car demand hits all-time high. Skip to Content Skip to Footer.