The formula to calculate the Horsepower Per Dollar (HPD) is:
\[ HPD = \frac{HP}{D} \]
Where:
Horsepower per dollar is a metric used to determine the cost efficiency of a vehicle or engine in terms of the power it produces. It is calculated by dividing the total horsepower by the total cost. This metric is useful for comparing the value of different vehicles or engines, helping consumers and businesses make informed decisions based on performance and cost.
Let's say the total horsepower (HP) is 300 hp, and the total cost (D) is $30,000. Using the formula:
\[ HPD = \frac{300}{30,000} = 0.01 \]
So, the Horsepower Per Dollar (HPD) is 0.01 HP/$.
Definition: Calculates the horsepower per pound of a vehicle.
Formula: \( \text{HP per Pound} = \frac{\text{Horsepower}}{\text{Weight}} \)
Example: \( \text{HP per Pound} = \frac{300}{3500} \)
Definition: Converts power in watts to horsepower.
Formula: \( \text{Horsepower} = \frac{\text{Power (W)}}{746} \)
Example: \( \text{Horsepower} = \frac{1500}{746} \)
Definition: Calculates horsepower based on torque and engine speed.
Formula: \( \text{Horsepower} = \frac{\text{Torque} \times \text{RPM}}{5252} \)
Example: \( \text{Horsepower} = \frac{400 \times 3000}{5252} \)
Definition: Calculates the weight-to-horsepower ratio of a vehicle.
Formula: \( \text{Weight to HP Ratio} = \frac{\text{Weight}}{\text{Horsepower}} \)
Example: \( \text{Weight to HP Ratio} = \frac{3500}{300} \)
Definition: Converts power in kilowatts to horsepower.
Formula: \( \text{Horsepower} = \text{Kilowatts} \times 1.341 \)
Example: \( \text{Horsepower} = 100 \times 1.341 \)
Definition: Estimates the speed of a vehicle based on its horsepower and weight.
Formula: \( \text{Speed (MPH)} = \sqrt{\frac{\text{Horsepower} \times 234}{\text{Weight}}} \)
Example: \( \text{Speed} = \sqrt{\frac{300 \times 234}{3500}} \)
