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2019 Monster Energy NASCAR Cup Series rules package

Imc 2019rulesupdate Infographic

Aero Elements

  • Spoiler: 8” x 61”
  • Splitter: 2” overhang, 10.5” wings at ends of splitter (near tires)
  • Radiator pan: 37” in front tapered to 31” with vertical fences
  • Aero ducts: Used at majority of oval tracks larger than 1 mile

Engine Elements

  • 750 HP: 1.17” tapered spacer (Used at short tracks and road courses)
  • 550 HP: 0.922” tapered spacer (Used at oval tracks larger than 1 mile)
Track HP Aero ducts?
Atlanta 550 No
Las Vegas 550 Yes
ISM (Phoenix) 750 No
Auto Club 550 Yes
Martinsville 750 No
Texas 550 Yes
Bristol 750 No
Richmond 750 No
Talladega 550 Yes
Dover 750 No
Kansas 550 Yes
Charlotte (All-Star) 550 Yes
Charlotte 550 Yes
Pocono 550 Yes
Michigan 550 Yes
Sonoma 750 No
Chicagoland 550 Yes
Daytona 550 Yes
Kentucky 550 Yes
New Hampshire 750 No
Pocono 550 Yes
Watkins Glen 750 No
Michigan 550 Yes
Bristol 750 No
Darlington 550 Yes
Indianapolis 550 Yes
Las Vegas 550 Yes
Richmond 750 No
Charlotte ROVAL 750 No
Dover 750 No
Talladega 550 Yes
Kansas 550 Yes
Martinsville 750 No
Texas 550 Yes
ISM (Phoenix) 750 No
Homestead 550 Yes

Misc.

  • Enhanced vehicle chassis mandatory at all tracks
  • Adding 3 long block engine seals in points races. These are in addition to the 13 short
    block seals introduced in 2018.
  • 25% reduction in testing (3 organizational tests, down from 4; 3 teams at each Goodyear
    test, down from 4).