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Tax horsepower. The tax horsepower or taxable horsepower was an early system by which taxation rates for automobiles were reckoned in some European countries such as Britain, Belgium, Germany, France and Italy; some US states like Illinois charged license plate purchase and renewal fees for passenger automobiles based on taxable horsepower.
Brake horsepower per cubic centimeter. Brake horsepower per cubic centimeter or (bhp/cc) is a figure of merit that is used to indicate the ' state of tune ' of an internal combustion engine. It is defined as the ratio of the engine's net power output to its displacement, the internal size. Power is measured at its rated speed and full throttle.
One imperial horsepower lifts 550 pounds (250 kg) by 1 foot (30 cm) in 1 second. Horsepower (hp) is a unit of measurement of power, or the rate at which work is done, usually in reference to the output of engines or motors. There are many different standards and types of horsepower.
Brake-specific fuel consumption. Brake-specific fuel consumption (BSFC) is a measure of the fuel efficiency of any prime mover that burns fuel and produces rotational, or shaft power. It is typically used for comparing the efficiency of internal combustion engines with a shaft output. It is the rate of fuel consumption divided by the power ...
Power-to-weight ratio is a measurement of actual performance of any engine or power source. It is also used as a measurement of performance of a vehicle as a whole, with the engine's power output being divided by the weight (or mass) of the vehicle, to give a metric that is independent of the vehicle's size. Power-to-weight is often quoted by ...
The compression ratio is the ratio between the volume of the cylinder and combustion chamber in an internal combustion engine at their maximum and minimum values. A fundamental specification for such engines, it can be measured in two different ways. The simpler way is the static compression ratio: the ratio of the volume of the cylinder when ...
The EA -series is a water-cooled 356 cc (21.7 cu in) inline two-cylinder engine replacing the N360's air-cooled 354 cc (21.6 cu in) engine. An SOHC design with a timing belt (replacing the chain used in the N360 engine), the EA was first seen in the 1971 Honda Life. This engine was derived from the air-cooled engine in the Honda CB450 and was ...
The resulting engine produces 30 to 38 hp (22 to 28 kW). Plans and kits have been made available for these conversions. [18] [19] One such conversion is the Carr Twin, designed by Dave Carr, introduced in January 1975, in the Experimental Aircraft Association's Sport Aviation magazine. The design won the John Livingston Award for its ...