What does a restrictor plate do?

What does a restrictor plate do?

A restrictor plate or air restrictor is a device installed at the intake of an engine to limit its power.

Are restrictor plates still used?

DAYTONA BEACH, Florida — It’s the end of the NASCAR restrictor plate world as we know it. Sunday’s Daytona 500 marks the end of an era in modern NASCAR. Over 30 years after restrictor plates were put in the engines of Cup Series cars at Daytona and Talladega, Sunday will be the final race with restrictor plates.

How fast can a stock car go without a restrictor plate?

How fast would Nascar cars go without restrictor plates? Speeds in excess of 200 mph are commonplace at Talladega. Talladega has the record for the fastest recorded time by a NASCAR vehicle on a closed oval course, with the record of 216.309 mph set by Rusty Wallace on June 9, 2004.

What replaced the restrictor plate?

NASCAR is merely switching to tapered spacers at every track to keep speeds in check. “No matter what you call it, you’re still restricting the air flow to the engine,” two-time Daytona 500 winner and 1988 NASCAR champion Bill Elliott said. “It’s just a different flavor, a different way of putting it.

Is Talladega or Daytona faster?

NASCAR introduces restrictor plates Earlier this season, speeds were around 200 mph at Daytona (2.5-mile track) and slightly higher at Talladega (2.66 miles).

Does Talladega have restrictor plates?

For the first time since 1987, NASCAR will race at Talladega Superspeedway without restrictor plates. A tapered spacer will instead keep things in check and manage engine air flow. Drivers will still have more horsepower than they used to, going from an estimated 410 to a targeted 550.

Is Talladega restrictor plate race?

Which NASCAR tracks are restrictor plate?

NASCAR Sprint Cup currently uses restrictor plates at Daytona International Speedway and Talladega Superspeedway. The device limits the power output of the motor and hence slows both the acceleration and the overall top speeds obtainable on the tracks where the cars are so equipped.

Is 2021 Daytona a restrictor plate race?

The season-opening Daytona 500 next year will be run under current configurations that combine the restrictor plate with a tapered spacer. NASCAR will go to just a spacer at Daytona and Talladega after the 500.