Top Speed

The Top Speed page determines the theoretical and actual top speed based on:

Vehicle weight is used to determine power requirements.

Drag coefficient is used to determine aerodynamic drag.

Frontal area is used to determine aerodynamic drag.

Drivetrain loss is used to determine drive wheel power.

Tire pressure is used to determine rolling resistance and therefore power requirements.

Brake specific (BSFC) is used to determine fuel consumption.

Gear ratio (in top gear) is used to determine speed.

Differential ratio is used to determine speed.

Tire diameter is used to determine speed.

Power is used to determine speed.

Maximum engine speed is used to determine theoretical top speed.

Altitude is used to determine available power.

Road grade is used to determine power requirements.

Head wind speed is used to determine aerodynamic drag.