anyone know the benifits of lightweight wheels? - Toyota Yaris Forums

CaysE · 07-11-2007, 02:53 PM

I can't calculate the other half of the picture, because it's more complicated.... dependant on what gear your in, gear ratios, the power output of the motor, and the weight of the moving parts of the drivetrain.

You can roughly determine the increase in HP to the ground by guessing the percentage of weight that is taken away from the total weight of the moving drivetrain with two lighter weight wheels, and comparing this to given HP numbers from the flywheel and the ground.

Like I said, you only have half the picture, which is that there's a .08% decrease in the required energy to move the car. The other half is that you have more power available to output 4695 kWatts faster. The percentage decrease in the required energy to move the drivetrain is much larger than .08%.

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07-11-2007, 02:53 PM	#20
CaysE That Focus Guy Drives: 2004 Focus RSVT Join Date: Jul 2007 Location: USA Posts: 51	I can't calculate the other half of the picture, because it's more complicated.... dependant on what gear your in, gear ratios, the power output of the motor, and the weight of the moving parts of the drivetrain. You can roughly determine the increase in HP to the ground by guessing the percentage of weight that is taken away from the total weight of the moving drivetrain with two lighter weight wheels, and comparing this to given HP numbers from the flywheel and the ground. Like I said, you only have half the picture, which is that there's a .08% decrease in the required energy to move the car. The other half is that you have more power available to output 4695 kWatts faster. The percentage decrease in the required energy to move the drivetrain is much larger than .08%.