10 things that make rally cars such mean machines
This year’s WRC Safari Rally came to an end recently at the Hell’s Gate National Park in Naivasha. And it was full of the thrilling twists and turns that come with rallying. The speed, the rolls, the dust and the sounds make it all the fun. But do you wonder how rally cars are made and how they can roll and the rally driver comes out unscathed? Mwangi Alberto compiles some of the dynamics that make these speed machines a near mystery.
1. Performance
Rally cars are designed to deliver high performance in terms of speed, acceleration, and handling. They are typically equipped with powerful engines that generate significant horsepower and torque. These engines are often turbocharged to provide quick acceleration and responsiveness.
2. All-wheel drive
Most rally cars employ an All-Wheel Drive (AWD) system to enhance traction and stability on different surfaces, including gravel, dirt, snow, and tarmac. AWD helps the car maintain control and grip in challenging driving conditions.
3. Suspension and chassis
Rally cars have specialised suspension systems and chassis that are designed to withstand the rigors of off-road racing. They feature long-travel suspension to absorb bumps and jumps, while maintaining stability and control at high speeds.
4. Aerodynamics
Rally cars have aerodynamic designs to improve stability and reduce drag. They often feature large rear spoilers, front splitters, and diffusers to optimise airflow and increase downforce, enhancing traction and grip.
5. Safety equipment
Rally cars are equipped with various safety features to protect the driver and co-driver during high-speed racing. Roll cages, reinforced chassis, and safety harnesses are common safety measures to ensure the occupants’ safety in case of accidents or rollovers.
6. Racing-specific tires
Rally cars use specialised tires that are designed to provide maximum traction on different surfaces encountered in rally racing. These tires have aggressive tread patterns to grip loose surfaces like gravel and dirt, as well as provide sufficient grip on tarmac.
7. Navigation equipment
Rally cars often have additional equipment to assist the driver and co-driver in navigation. This includes rally computers, trip metres, and co-driver note systems. These tools help the team navigate the rally stages accurately and efficiently.
8. Weight reduction
Rally cars undergo weight reduction measures to enhance performance and agility. Unnecessary components may be removed, and lightweight materials, such as carbon fiber, are used to reduce overall weight without compromising safety.
9. Rally-specific electronics
Rally cars feature advanced electronic systems to aid the driver’s control and performance. These systems can include traction control, launch control, adjustable differentials, and engine management systems, allowing for fine-tuning and optimising performance based on varying conditions.
10. Customisation and regulations
Rally cars are built to meet specific regulations set by rally racing organisations. These regulations may dictate the allowable modifications, engine sizes, safety requirements, and other aspects of the car to ensure fair competition and safety standards.
