Performance Calculators

Horsepower to Torque is evaluated from Horsepower, Torque and RPM. The calculation reports Horsepower, Torque and HP = Torque crossover note.

Quarter-Mile is evaluated from Horsepower and Vehicle Weight. The calculation reports Estimated Quarter-Mile ET, Estimated Trap Speed and Estimated 0 - 60 MPH.

Braking Distance is evaluated from Initial Speed, Reaction Time and Road / Brake Condition. The calculation reports Reaction Distance, Braking Distance and Total Stopping Distance.

Engine Displacement is evaluated from Bore, Stroke and Number of Cylinders. The calculation reports Displacement, Displacement and Displacement.

Car Gear Ratio Speed is evaluated from Engine RPM, Transmission Gear Ratio and Axle / Final Drive Ratio. The calculation reports Vehicle Speed, Overall Final Drive and Engine RPM at 60 MPH.

Tire Size is evaluated from Tire 1 - Width, Tire 1 - Aspect Ratio and Tire 1 - Rim Diameter. The calculation reports Tire 1 Diameter, Tire 1 Circumference and Tire 2 Diameter.

Towing Capacity is evaluated from GVWR, Curb Weight and Number of Passengers. The calculation reports Remaining Payload Capacity, Estimated Tongue Weight and Tongue Weight OK?.

Speedometer Correction is evaluated from Original Tire Diameter, New Tire Diameter and Indicated Speed. The calculation reports Actual Speed, Speedometer Error and Odometer Correction Factor.

Engine RPM is evaluated from Vehicle Speed, Transmission Gear Ratio and Final Drive / Axle Ratio. The calculation reports Engine RPM, Tire Circumference and Tire Revolutions per Mile.

Tire Diameter Comparison is evaluated from Tire 1 - Width, Tire 1 - Aspect Ratio and Tire 1 - Rim Diameter. The calculation reports Tire 1 Diameter, Tire 2 Diameter and Diameter Difference.

Wheel Offset is evaluated from Rim Width and Backspace. The calculation reports Offset / ET Value, Offset and Wheel Centerline.