The ratio of torque to the weight of the moving part of an instrument is known as a torqueweight ratio. A typical turbocharged v8 diesel engine might have an engine power of 250 kw 340 hp and a mass of 380 kg 840 lb giving it a power to weight ratio of 065 kwkg 040 hplb.
View Question How Do I Calculate Speed Of A Structure When
Torque to weight ratio. The higher value of torqueweight ratio shows that the instrument has good performances. Take the peak torque say 200 ft lbs multiply it by the overall gear ratio say 101. Power to weight ratio is a measurement of actual performance of any engine or power source. To do this take the overall gear ratio final drive multiplied by first gear ratio of each car in its lowest gear. Torque is a force which makes the object to rotate power to weight ratio or specific power or power to mass ratio is a calculation commonly applied to engines and mobile power sources to enable the comparison of one unit or design to another. This method uses power in horsepower and weight in pounds to determine the power to weight ratio.
It indexes the performance of the instrument. Solving for vehicle power to weight ratio. Examples of high power to weight ratios can often be found in turbines. Top torque to weight ratios under 100k 50k and 25k update supercars meet muscle trucks in search of the most potent twist. This is because of their ability to operate at very high speeds. The alto with 77bhp per tonne is faster to 100 kmph in 4th gear than the kwid with 80 bhp per tonne by a whopping 75 seconds.
With 325 horsepower and 354 pound foot of torque pulling its sub 3700 pound curb weight this volvo sport sedan puts up an impressive 9966 ratio good for 11th best among vehicles in production. Pwr power to weight ratio horsepower per pound watts per kilogram p power horsepower watts wt weight pounds kilograms. The car with the lowest power lowest torque and the worst power to weight ratio has the best acceleration and far better roll on times. So 2000 ft lbs are reaching the rear wheels. It uses a 30 liter six cylinder turbo engine to generate that force giving a brand known for safety a powerful machine available in its 2015 roster. Finally you need the peak torque and the vehicle weight.
A car with a high power to weight ratio will accelerate faster than a automobile with a lower value. You also want the radius of the rear wheel.