What is the suitable tire pressure for rally racing?

[McBrady]

Tire pressure of around 2.5mpa is suitable for rally racing. Strictly speaking, tire pressure refers to the air pressure inside the tire. Hazards of excessive tire pressure: Reduced tire friction and adhesion, affecting braking performance; causes steering wheel vibration and deviation, reducing driving comfort; accelerates wear on the central tread pattern, shortening tire lifespan; increases vehicle vibration, indirectly affecting the lifespan of other components; decreases puncture resistance. When encountering sharp objects like nails or glass on the road, they can easily penetrate the tire, causing internal cracks or blowouts due to impact. Hazards of insufficient tire pressure: Increases friction coefficient with the road surface, raising fuel consumption; makes the steering wheel heavy and prone to deviation, compromising driving safety; increases movement in various parts of the tire, leading to abnormal heat due to excessive rolling; reduces the functionality of cords and rubber, causing delamination or cord breakage, and excessive friction with the rim leading to damage and abnormal wear at the bead area.