What can cause a car to pull to the right during heavy throttle application?

Unequal front tire diameters can cause a car to pull to one side during heavy throttle application because the tires are making different distances traveled per revolution. When the diameter of one tire is larger than the other, it creates a disparity in the traction and grip on the road, especially under acceleration. As the vehicle accelerates, the tire with the larger diameter may experience greater momentum, pulling the vehicle towards the side of the smaller diameter tire. This uneven interaction becomes more pronounced when significant power is applied, such as during heavy throttle, leading to a noticeable pulling sensation.

While incorrect tire alignment, improper tire pressure, and worn brake pads can affect vehicle handling and driving characteristics, those issues typically influence overall stability and steering responsiveness rather than a direct pulling effect tied specifically to acceleration. However, when it comes to the specific scenario of pulling during heavy throttle, unequal front tire diameters is the root cause that leads directly to this behavior.