Why is having weight in the back help torque?

Question

i mean: How does having the weight towards the back of a car help generate torque

Answer 1

weight in the rear doesn't "generate" torque, but rather aids in the transfer of generated torque to the ground.

Tires tend to round out upon high torque, putting less rubber on the ground, and the smaller ground-contact surface allows less actual torque to transfer to the launch/application surface in the form of power.
Adding additional weight in the rear helps to compress the tires, and aids in keeping more contact surface between the power and the applied surface.

To sum it more simply: Traction.

**In the matter of modern front-wheel drive cars, this is why they get such good traction and efficient use of torque...there is so little weight in the rear of the vehicle, and 700+lbs sitting on the drive wheels.

Answer 2

By placing weight to the rear of a vehicle (assuming it is not front wheel drive) puts more weight over the wheels increasing the friction between the tires and the road surface. Also, depending on your tire pressure, it may increase the contact area of the tires with the road.

Answer 3

The more power a car has, especially like 1000 hp, it helps keep that power on the road when accelerating, and from tires slipping as much.