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Sprint Car Industry Announces Rule Changes For 2019 Season
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The World of Outlaws Craftsman Sprint Car Series and the newly formed Sprint Car Council today announced rule changes for the 2019 racing season. The changes, structural in nature, are part of the ongoing effort to apply technological advances in the design and manufacture of equipment to enhance competition and safety.
The Sprint Car Council, composed of major 410ci sprint car sanctioning bodies and race tracks, met earlier this week to review and adapt recommendations coming out of the chassis builders meeting during the Knoxville Nationals earlier this month.
Changes will affect the following components:
• Chassis support bars
• Slip Joints
• Wing T-post
• Steel LF Radius Rod and Rod Ends
• Left and Right Nerf bars
• Elimination of bolt to bolt axle tethers
• Securing fuel cells
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.
Left- and right-side support bars may be one of two forms a “Curved Support Bar” similar to current “safety bar” used in some chassis’ or a “Support Bar” similar to the World of Outlaws Craftsman Sprint Car Series 2018 Rules Bulletin #2 dated March 8, 2018.
Slip Joints
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
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.
Steel LF Radius Rod and Rod Ends
LF radius rods are 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 3 points. Two point side nerf hoops will no longer be allowed.
Elimination of bolt to bolt axle tethers
2019 will be the last year axle tethers will be attached to the radius rod bolt on the axle. 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 manufactures instructions.
Securing Fuel Cells
World of Outlaws officials are considering some ideas to better secure fuel cells and keep them attached to the chassis during crashes. Some ideas being considered are to strengthen the existing mounting points, tethers and additional mounting points.
For more information, including drawings of the chassis support bars and Wint T-posts and more details, visit the World of Outlaws website here.
The Sprint Car Council, composed of major 410ci sprint car sanctioning bodies and race tracks, met earlier this week to review and adapt recommendations coming out of the chassis builders meeting during the Knoxville Nationals earlier this month.
Changes will affect the following components:
• Chassis support bars
• Slip Joints
• Wing T-post
• Steel LF Radius Rod and Rod Ends
• Left and Right Nerf bars
• Elimination of bolt to bolt axle tethers
• Securing fuel cells
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.
Left- and right-side support bars may be one of two forms a “Curved Support Bar” similar to current “safety bar” used in some chassis’ or a “Support Bar” similar to the World of Outlaws Craftsman Sprint Car Series 2018 Rules Bulletin #2 dated March 8, 2018.
Slip Joints
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
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.
Steel LF Radius Rod and Rod Ends
LF radius rods are 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 3 points. Two point side nerf hoops will no longer be allowed.
Elimination of bolt to bolt axle tethers
2019 will be the last year axle tethers will be attached to the radius rod bolt on the axle. 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 manufactures instructions.
Securing Fuel Cells
World of Outlaws officials are considering some ideas to better secure fuel cells and keep them attached to the chassis during crashes. Some ideas being considered are to strengthen the existing mounting points, tethers and additional mounting points.
For more information, including drawings of the chassis support bars and Wint T-posts and more details, visit the World of Outlaws website here.
