NASCAR announces technical update for top three divisons

NASCAR modified rules for its top three tours on Wednesday.

NASCAR announces technical update for top three divisons

In the Sprint Cup Series, under the Vehicle and Driver Safety Specifications, rules for crush panel locations were clarified with the following updates:

Rule 20.3.4.3.3 INNER REAR WHEEL WELLS

.a The inner rear wheel wells must be constructed of magnetic sheet steel with a minimum thickness of 0.027 inch.

.b Holes and/or other modifications that were made with the intent of weight reduction will not be permitted.

.c The inner rear wheel wells must conform to the following drawing:

 

NASCAR technical update

Rule 20.4.17.10 TRUNK REAR CRUSH PANEL

.a A trunk rear crush panel must be used 

.b The trunk rear crush panel must conform to the following drawing:

Rule 20.4.17.5 FRONT FENDER CRUSH PANELS

.a A left and right side front fender crush panel must be used.

Rule 20.4.17.9 REAR WHEEL WELL CRUSH PANELS

.a A left and right side rear wheel tub crush panel must be used.

Rule 20.4.18 ROCKER PANEL EXTENSIONS

.a Rocker panel extensions must conform to the following drawing:

 

NASCAR technical update

The sanctioning body introduced new sections in the Xfinity Series Rulebook outlining Front and Rear Brake Cooling Assemblies (Rule 20.15.2.1, 20.15.2.2) and updated the parameters for Front Brake Cooling Fans (Rule 20.15.2.3.1) and Rear Brake Cooling Fans (Rule 20.15.2.3.2) using a right-side rear window NACA duct on oval tracks over 1.3-miles in length. A similar rule was instituted earlier in the Sprint Cup Series. 

NASCAR also released minimum heights for tailgates in the NASCAR Camping World Truck Series

On Superspeedways, the pre-race minimum rear height 46.31 - 47.31 inches on the left and 47.31 - 48.31 inches on the right. Post-races heights are a minimum of 46.06 inches on the left, 47.06 inches on the right. 

For road Courses, both sides of the tailgate must measure 44.38-46.38 inches in pre-race, 44.38-46.88 inches in post-race.

At Bristol Motor Speedway, Dover International Speedway and Eldora Raceway, tailgates before and after the race must measure 44.38 - 45.88 inches on the left and 45.38 - 46.88 inches on the right. 

On all other tracks, the minimum pre-race tailgate measurement is 44.38 - 45.38 inches on the left and 45.38 - 46.38 right. Post-race left-side measurement is 44.38 - 45.88 and 45.38 - 46.88 inches on the right.

 

NASCAR technical update
NASCAR technical update

Photo by: NASCAR Media

shares
comments
Opinion: A year of aero changes have changed NASCAR for the better
Previous article

Opinion: A year of aero changes have changed NASCAR for the better

Next article

Stat analysis: Chevy's strange losing streak at Loudon

Stat analysis: Chevy's strange losing streak at Loudon
Load comments
How Larson took the long way round to NASCAR Cup glory Prime

How Larson took the long way round to NASCAR Cup glory

From villain to hero, Kyle Larson had to reach his lifelong goal the hard way and go through a very public shaming after a ban for using a racial slur, but his talents shone long before his name grabbed the headlines...

NASCAR Cup
Nov 10, 2021
How NASCAR is gearing up for its "biggest change" in 2022 Prime

How NASCAR is gearing up for its "biggest change" in 2022

It’s not just Formula 1 that’s set for upheaval in 2022, as the NASCAR Cup series adopts its Next Gen cars that will cast any in-built advantages aside and require teams to adopt a totally new way of operating. Far more than just a change of machinery, the new cars amount to a shift in NASCAR's core philosophy

NASCAR Cup
Oct 12, 2021
Why Bubba Wallace’s Talladega win is such a big moment for NASCAR Prime

Why Bubba Wallace’s Talladega win is such a big moment for NASCAR

Bubba Wallace claimed his maiden NASCAR Cup Series at Talladega on Monday to become the first Black victor in the category since Wendell Scott in 1963. Both Wallace and Scott had faced obstacles and racism in their paths to their breakthrough wins, and NASCAR is trying to put it right with its range of diversity programmes

NASCAR Cup
Oct 5, 2021
Why NASCAR's most resilient driver has landed on his feet at 23XI Prime

Why NASCAR's most resilient driver has landed on his feet at 23XI

In a career that has had many ups and downs, Kurt Busch has been written off many times before. But facing career uncertainty after the sale of Chip Ganassi's NASCAR team, the 2004 Cup champion has found a new berth at Denny Hamlin and Michael Jordan's 23XI organization - which underlines his enduring value

NASCAR Cup
Aug 31, 2021
From the archive: Dale Earnhardt’s final Autosport interview Prime

From the archive: Dale Earnhardt’s final Autosport interview

The death of Dale Earnhardt in the 2001 Daytona 500 shocked NASCAR to the core. At the Daytona 24 Hours, two weeks before his fatal accident, ‘The Intimidator’ shared his expectations of challenging for an eighth Cup title with JONATHAN INGRAM, in an article first published in the 15 February 2001 issue of Autosport magazine. Little did we know then what tragedy would unfold…

NASCAR Cup
Feb 18, 2021
The lasting NASCAR legacy after Dale Earnhardt’s death Prime

The lasting NASCAR legacy after Dale Earnhardt’s death

On February 18, 2001, seven-time NASCAR Cup champion Dale Earnhardt – the fearless ‘Intimidator’ – was in his element at Daytona International Speedway. While his own DEI team’s cars ran 1-2 towards the finish line, his famed #3 Richard Childress Racing Chevrolet Monte Carlo was playing rear gunner to block any late runs from the chasing pack. As the cars tore through Turns 3 and 4 on that fateful final lap, Earnhardt maintained the strongarm tactics that encapsulated his persona… but his actions in those moments sadly proved to be his last.

NASCAR Cup
Feb 18, 2021
Inspired by Pitbull, the “revolution” sweeping through NASCAR Prime

Inspired by Pitbull, the “revolution” sweeping through NASCAR

The NASCAR Cup Series is changing. Whether it be the gradual morphing out the seasoned drivers of yesterday as the next generation step up, a radical calendar shake-up featuring more road courses than ever before and the prospect of an all-new car on the horizon, stock car racing’s highest level is nearing the end of a huge facelift.

NASCAR Cup
Feb 16, 2021
The NASCAR storylines to watch out for in 2021 Prime

The NASCAR storylines to watch out for in 2021

This weekend's Daytona 500 kickstarts a NASCAR Cup season that promises plenty of intrigue courtesy of new owners and a refreshed calendar. Here's what you need to know ahead of the new season…

NASCAR Cup
Feb 13, 2021