The formula to calculate the horsepower capacity at higher speed is:

\[ HP = \frac{1700 \cdot T_1^{1.5} \cdot P^{0.8}}{N_1^{1.5}} \]

Where:

• \(HP\) is the horsepower capacity in horsepower (hp).
• \(T_1\) is the number of teeth on the smaller sprocket.
• \(N_1\) is the speed of the smaller sprocket in revolutions per minute (rpm).
• \(P\) is the chain pitch in inches.