What is a 40 Roll race?

Born on the interstate highway network in and around large Southern cities, races are started at a roll—usually 40 mph. For many street cars with DOT tires, this is a sweet spot that allows drivers to start a race at the right engine speed for maximum torque, but at a speed that makes it easier to get traction.

What is a 20 Roll race?

Instead of starting from a complete stop like traditional drag racing, a roll drag heads-up race starts with both cars rolling at an agreed speed (40 mph). There are said to be over 20 roll racing organizations or events worldwide.

What is a rolling race?

Roll Racing is a form of street racing that starts from a roll. All IRRA races start from a 40 mph roll. The race finishes at the drag strips ¼ mile finish line.

Is Roll Racing legal?

Roll racing on the street is dangerous and illegal.

Does weight matter in a roll race?

Weight is a major factor in how a vehicle accelerates. However with roll racing, gearing and the torque curve of the engine take precedence over weight. Max acceleration is roughly horsepower divided by weight.

Why does rolling start?

Cars must wait for the green flag to accelerate to race speeds. Rolling starts are often accompanied by several rules to prevent drivers from getting an unfair advantage during the start of the race. For example, drivers on the inside line cannot overtake cars on the outside until they have passed the start line.

Why is a rolling start slower?

Why are rolling starts slower than 0 to 60 runs? It takes time to get up to that range, so in a rolling start, it’s slower to get to high performance ranges while the standstill car launches at those ranges, making it accelerate just a little faster.

What is a rolling start Sprint?

The Rolling Sprint is a workout designed to improve acceleration, or your snap. This workout is time-based rather than distance-based. Like Stand Stills, start the sprint in the drops and out of the saddle and stay in the same gear during the effort.