NASCAR announces 2018 rules package for Cup


By Caleb Whisler, Staff Writer

On Tuesday, NASCAR released the 2018 rules package to Monster Energy NASCAR Cup Series teams. In regards to downforce reduction and horsepower limitation,NASCAR will keep things virtually the same compared to the previous two years.

In terms of safety, NASCAR will add an incident data recorder (IDR) wiring harness and a high-speed in-car video camera. The IDR must be in the NASCAR Parts Database. The IDR will be powered by the vehicle I’m improve fidelity of pre-crash date. The high-speed in-car video camera will be used to enhance the analytical capacity of crash incidents.

The enhanced vehicle chassis (EVC) rollout has been pushed back to 2019. The EVC would provide a better foot-protection area for drivers. Any new chassis submitted after November 20, 2017, will be required to have the EVC.

At Talladega Superspeedway and Daytona International Speedway, NASCAR has eliminated the ride-height rule. This elimination will increase lift off speed by about 30 miles per hour. NASCAR will no longer mandate rear shocks and rear springs at super speedway events. The size of the restrictor plate remains the same at 7/8 inches.

In terms of aerodynamics, the spoiler will remain at 2.375-inches tall by 61 inches wide. NASCAR will require teams to use a common flat splitter, radiator, and oil cooler. This will help NASCAR determine if a team has altered the splitter to create an advantage. The net rear steer will remain at zero. Teams will have a one rear gear rule at tracks except for tracks that have underwent a repave and/or reconfiguration. The aerodynamic fans located at the wheel corners will be reduced. The front sub frame rules have been modified to reduce aerodynamic developments.

In an effort to reduce engine costs, NASCAR told teams that they would in a minimum of 13 races have to compete with a short block sealed engine. This includes the engine block, crankshaft, camshaft, connecting rods, pistons, and oil pan. Teams must compete with a long block sealed engine in the Clash at Daytona and the All-Star Race. This includes all elements in the short-block engine, but includes cylinder heads and valves.

Teams are required to use a single engine at all events, including the Daytona 500. If a team goes to a backup car, they will have to remove the engine from the primary and place it in their backup car. The backup car must not have an engine installed. If a team goes to their backup car at any point in the event, the team will be required to start at the rear of the field.

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