Definition of brake horsepower in English:

brake horsepower


  • 1An imperial unit of power, equal to one horsepower but used only as a measure of the power available at the shaft of an engine.

    ‘the engine develops 98 brake horsepower’
    • ‘The 5.7 litre 90° V8 develops 340 brake horsepower at 6300 rpm and a massive 583 Nm of torque at 4700 rpm.’
    • ‘The Cooper S Convertible includes a supercharger that enables the Brazilian-built, 1.6-litre, four-cylinder engine to produce 170 brake horsepower.’
    • ‘Evolution class boats are capable of achieving up to 2000 brake horsepower and top speeds of around 90 mph on the water.’
    • ‘It has a 350 cubic inch, 5.7 litre engine with 350 brake horsepower, has a listed top speed of 180 miles per hour and does zero to sixty in 4.2 seconds.’
    • ‘All cars were put on a Dynapack rolling-road chassis dynamometer at race preparer Les Small's Melbourne workshop to ensure every Ford 5.0 litre V8 and Holden 5.7 litre V8 engine has the same output, to within two brake horsepower.’
    1. 1.1 The available power of an engine, assessed by measuring the force needed to brake it.
      ‘the net brake horsepower is only up by six’
      • ‘This event had the best profile any single stage has ever seen so nobody could predict a winner and there was almost 2,500 brake horsepower in the top ten alone.’
      • ‘Seventy-five percent power will require about 2,450 rpm with a brake-specific fuel consumption of .435 pounds per brake horsepower.’
      • ‘The most powerful car in the race has an undisclosed output of between 300 or 400 brake horsepower.’