NASCAR Low Downforce Package Update for Michigan
NASCAR will roll out its low downforce package update this weekend. The low downforce rules package has been updated, with changes shown below.
The package was last used at Michigan and Kentucky earlier this season. However, additional changes have been made to the rules for this weekend’s race.
The rules package developments are part of an industry-wide collaboration to further enhance the racing. Earlier this season, welded truck trailing arms and new brake cooling rules were put into place.
Team Penske has won every race where this package has been used this season. #22-Joey Logano triumphed in the June Michigan race, while #2-Brad Keselowski took the checkered flag at Kentucky.
The following updated lower downforce package below will be in use in Sunday’s Pure Michigan 400 at Michigan International Speedway.
Updates to the NASCAR low downforce rules package
Rules to help to further reduce downforce and sideforce:
Reduce skew generated sideforce by setting rear toe to zero (this rule was last used in NASCAR Sprint All-Star Race)
Aero package tweaks to reduce aero-generated downforce and sideforce
Spoiler shortened from 3.5 inches to 2.5 inches
Splitter reduced to 2 inches
Resize of deck fin to match spoiler
Rules Update: NASCAR
