BROWNSBURG, IN – August 25, 2018 – (Motor Sports Newswire) – The All Star Circuit of Champions has implemented rules changes that will take effect beginning with the 2019 season. These changes cover the following components:
- Chassis support bars
- Slip joints
- Wing T-post
- Steel left-front radius rod and rod ends
- Left and right nerf bars
- Elimination of bolt-to-bolt axle tethers
“Earlier this month during the Knoxville Nationals, we took a collective step forward by having initial discussions between tracks and series regarding the potential of a Sprint Car Council, which would identify best practices for improving safety, enhancing competition and facilitating participation by drivers and teams in multiple series,” said Tony Stewart, owner of the All Star Circuit of Champions. “After thoughtful debate and careful consideration, the All Stars made the decision to implement these rules changes to promote safety and competition in our series, with the added benefit being that our drivers and teams can freely participate in other series using these same specifications.”
Chassis support bars
In 2019, all chassis will be required to have additional bars installed to support and decrease the span between the front and rear uprights. The new support bars must be an addition to the front and rear uprights. Any attempts to manipulate the front and rear uprights to conform to these measurements will not be tolerated or allowed at the discretion of All Star Circuit of Champions Series Officials. The left- and right-side support bars do not have to be the same. These additional bars will be minimum 1.375 X .083 ASTM4130 normalized steel or equivalent material as per All Star Circuit of Champions current rule K.5.u.
Left- and right-side support bars may be one of two forms of a “Curved Support Bar” similar to current “Safety Bar” used in some chassis’ or a “Support Bar” similar to the All Star Circuit of Champions 2018 Rules Bulletin #1 dated March 9, 2018.
The Curved Support Bar will attach to the top rail to create a span between 15” and 20” from the front upright to the support bar. This measurement will be made from the rear point of the front upright to the forward point of the support bar. It will attach to the hip rail and have a gusset attached above the curve to the rear upright at the point opposite of the rear brace/shock mount bar. The outer most point of the curve will be between 4” and 7”, measured from the outer edge of the uprights.
The Support Bar will be attached to the top rail to create a span between 15” and 20” from the front upright. This measurement will be made from the rear point of the front upright to the forward point of the support bar. The bottom of the Support Bar will attach to the rear upright at the point opposite of the rear brace/shock mount bar.
Right side body opening shall remain the same per rule K.7.j. in the All Star Circuit of Champions Rule Book.
See drawings below.
Slip joints will no longer be allowed in any form. Bolted or clamped slip joints will no longer be allowed. If a current chassis has a slip joint, it will have to be welded the full circumference of the tube to become solid.
Wing T-post will be built from 1” X .083” minimum ASTM4130 normalized steel or equivalent material. No parts made from castings will be allowed on any wing T-post. Wing attachment designs will be subject to approval. Some approved design drawings are below.
Steel left-front radius rod and rod ends
The left-front radius rod is to be made of 4130 steel with steel rod ends.
Left and right nerf bars
All left- and right-side nerf bars must attach to the chassis at three points. Two-point side nerf hoops will no longer be allowed.
Elimination of bolt-to-bolt axle tethers
The 2019 season will be the last year axle tethers will be attached to the radius rod bolt on the axle. In January 2020, all axle tethers will either wrap around or clamp to the axle.
Also in 2019, all axle tethers will be required to attach to the front engine plate post or the rear bolt of the front radius rod and not the radiator post, per manufacturer’s instructions.
About the Arctic Cat All Star Circuit of Champions presented by Mobil 1:
All Star Enterprises, LLC, wholly owned by Tony Stewart, d/b/a the All Star Circuit of Champions, is a winged sprint car series. The All-Star Circuit of Champions Sprint Car Series is one of the oldest traveling 410 sprint car organizations and is a staple of grassroots, open-wheel racing. Formed in 1970 by Bud Miller, the series has largely been considered the first ‘outlaw’ Sprint Car organization of the modern era. Motorsports entrepreneur Tony Stewart agreed to terms with Guy Webb to become the sole owner of the original winged sprint car tour in January of 2015. In 2018, MAVTV Motorsports Network will be the official television home of the Arctic Cat All Star Circuit of Champions presented by Mobil 1 and will broadcast eight high-profile events.
About Arctic Cat:
For more than 50 years, the Arctic Cat snowmobile brand has stood as one of the most widely recognized and respected in the industry. Today Arctic Cat’s snowmobile product lines span more than 50 different models, with offerings for every style of riding, from trail-riding with the family, to long-distance touring with friends, to mountain sleds to handle the most severe backcountry conditions. For more information, visit: www.arcticcat.com.
About Textron Specialized Vehicles Inc:
Textron Specialized Vehicles Inc. is a leading global manufacturer of golf cars, utility and personal transportation vehicles, snowmobiles, side-by-sides, all-terrain vehicles, professional turf-care equipment, and ground support equipment. Textron Specialized Vehicles markets products under the E-Z-GO®, Cushman®, Arctic Cat®, Textron Off Road™, Jacobsen®, Dixie Chopper®, Ransomes®, TUG™, Douglas™, Premier™ and Safeaero™ brands. Its vehicles are found in environments ranging from golf courses to factories, airports to planned communities, and theme parks to hunting preserves.
About Mobil 1:
The world’s leading synthetic motor oil brand, Mobil 1™ features anti-wear technology that provides performance beyond our conventional motor oils. This technology allows Mobil 1 to meet or exceed the toughest standards of car builders and to provide exceptional protection against engine wear, under normal or even some of the most extreme conditions. Mobil 1 flows quickly in extreme temperatures to protect critical engine parts and is designed to maximize engine performance and help extend engine life.
Mobil, Mobil 1 and Mobil 1 Racing are registered trademarks of Exxon Mobil Corporation or one of its subsidiaries.
Source: All Star Enterprises, LLC