Torque is the measurement of turning force. A wrench applies torque to a bolt. A motor or engine provides torque to do work.
Horsepower is the measurement of the work done or ability to do work. This is done by taking the speed the engine is operating at (RPM) and what torque it is producing and applying a formula to give a horsepower rating.
There isn't a direct conversion between horsepower and torque in foot-pounds. Horsepower is a measure of power, while torque measures rotational force. Horsepower can be calculated using a formula that includes torque and engine speed.
The horsepower of a 1991 Chevrolet 454 cubic inch engine ranges between 240 horsepower and 350 horsepower the engine torque ranges between 700 pounds and 850 pounds.
A 1000 is known as a liter-bike or 1000cc motorcycle. A 500 is a 500cc or half-liter-bike. cc means cubic centimeters which is the size of the piston(s). The difference between, at present circa 2010, a 1000cc and a 500cc motorcycle is size, weight, horsepower and torque; the 1000 is going to have 150+/- horsepower and 115+/- Nm(newton meters) ft/lbs. of torque; the 500 will have around 50+/- horsepower, 30+/-Nm(newton meters) ft./lbs. of torque.
Torque is "twisting power" whereas horsepower is motivational. They do not directly translate. Had to guess it is between 4HP and 6HP. Sorry but precision is no available!
260 horsepower 280 torque
Torque(lb/ft) = (5252 * horsepower) / RPM
what is the horsepower and torque of the suzuki boulevard c90
Torque and horsepower are two separate ratings.
It is, Horsepower = Torque x RPM, but Torque is not constant across the rev range of an engine. For gasoline engines, there is generally very little torque at low rpms, generally flat torque across the middle rpms, and then a drop off as the engine starts spinning too fast for complete combustion. Electric engines, on the other hand, start off with maximum torque and decrease with higher engine speed. So, the short answer to your question is that it's a direct relationship between horsepower and torque, but the variation in the torque curve across the rpm range makes the resultant horsepower curve vary too. (If your question was really why does torque vary with rpm, simply stated it's because engines have varying efficiencies at different speeds.) It is, Horsepower = Torque x RPM, but Torque is not constant across the rev range of an engine. For gasoline engines, there is generally very little torque at low rpms, generally flat torque across the middle rpms, and then a drop off as the engine starts spinning too fast for complete combustion. Electric engines, on the other hand, start off with maximum torque and decrease with higher engine speed. So, the short answer to your question is that it's a direct relationship between horsepower and torque, but the variation in the torque curve across the rpm range makes the resultant horsepower curve vary too. (If your question was really why does torque vary with rpm, simply stated it's because engines have varying efficiencies at different speeds.)
Horsepower and torque cross at 5252 RPM due to the relationship defined by the formula: horsepower = (torque × RPM) / 5252. This formula shows that at 5252 RPM, the units of torque (measured in pound-feet) and the conversion factor (5252) align such that the values of horsepower and torque become equal. Essentially, this is a result of the mathematical relationship between these two measures of engine performance, which is consistent across all internal combustion engines.
One difference between dynamic torque and static torque is the level of difficulty to measure. Static torque is each to measure, while dynamic torque is not. This is because it requires a transfer of an electric or magnetic effect.
The difference between a hemi 265 and a hemi 245 is the horsepower. The 265 has a 218 @ 4,800 gross horsepower while the 245 has 165 @ 4,400 gross horsepower.