The Camshaft is driven by the engine belts which in turn allows it to move the valves in the engine. The Valves improve the car's PP by a fair amount. Valves are driven by the camshaft, and can improve an engine's performance by how far they move in and out of the cylinders, to allow as much fuel and air into the cylinders as possible. The Valves allow the flow of air-fuel mix and exhaust gases into and out of the cylinders respectively. The Exhaust improves the car's PP by a small amount. They are fitted with catalytic converters to reduce the amount of toxic gases emitted from combustion. The Exhaust allows the exhaust gases to flow out of the car. The Exhaust Manifold improves the car's PP by a small amount. The Exhaust Manifold is fitted to the engines to allow the exhaust gases to flow from the cylinders in the combustion cycles. The Ignition improves the car's PP by a great amount. Spark timing is crucial to optimise power from the engine. These ignite the fuel for combustion, and are timed to spark just before the pistons reach the upper displacement of the cycle.

The Ignition comprises of the spark plugs. The Fuel System improves the car's PP by a fair amount. Most modern cars do not use carburettors, as the mix flows directly into the cylinders. The Fuel System for Wreckfest's cars typically consist of carburettors, which help provide the optimum air-fuel mix for performance. Intake manifolds increase the car's PP by a good amount. Getting the right mix of fuel and air is optimal for best performance. The Intake Manifold allows the flow of the air-fuel mixture into the cylinders for combustion. Cooling parts improve the car's PP by a fair amount. These components help keep the engine at an optimum temperature and remove any excess heat. The Air Filter improves the car's PP by a small amount.Ĭooling systems are most to do with cooling fans and radiators. The Air Filter helps provide clean air to the engine for combustion, preventing any dust or particles from entering the cylinders.

Engines change the performance class of the car. Each car comes equipped with its own selection of engines. The Engine is the main powerhouse of the car itself. Most Assembly parts will be available in 4 different levels:, , and These can change the car's PP and acceleration. Performance parts alter the overall performance of the car.