IRA Sprints

Julien Dominates Plymouth Finale as Nimee Secures...
LAST LAP STORY: Timms Grabs Another Nationals Titl...
Arenz tallies 2025 victory No. 3 at 141
Julien Dominates Plymouth Finale as Nimee Secures...

Julien Dominates Plymouth Finale as Nimee Secures...

9/29/2025 -
Julien Dominates Plymouth Finale as Nimee Secures 2025 Bumper to Bumper IRA Sprints Championship By Gracie Cleveland The 2025 Bumper to Bumper IRA Spr
LAST LAP STORY: Timms Grabs Another Nationals Titl...

LAST LAP STORY: Timms Grabs Another Nationals Titl...

9/21/2025 -
LAST LAP STORY: Timms Grabs Another Nationals Title By: Madeline “Chatty Madi” Ruh After a previous night’s rainout, racers were excited to participat
Arenz tallies 2025 victory No. 3 at 141

Arenz tallies 2025 victory No. 3 at 141

9/17/2025 -
(PEDAL DOWN PROMOTIONS) September 17, 2025 – Although it may not be his home track, 141 Speedway is the next best thing for Travis Arenz. After earnin

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Hartmann rounds out 2025 with Plymouth top 10

Hartmann rounds out 2025 with Plymouth top 10

10/1/2025
(PEDAL DOWN PROMOTIONS) October 1, 2025 – Austin Hartmann and the 87A Hartmann Racing Team capped the 2025 campaign on a positive note in Bumper to Bumper Interstate Racing Association 410 Sprint Car Series competition during the eighth annual Wisconsin Sprint Car...more
Arenz drops curtain on remarkable 2025 campaign

Arenz drops curtain on remarkable 2025 campaign

10/1/2025
(PEDAL DOWN PROMOTIONS) October 1, 2025 – Travis Arenz and the Travis Arenz Motorsports Team crew capped a highly memorable 2025 season with the Bumper to Bumper Interstate Racing Association 410 Sprint Car Series curtain closer as part of the eighth annual Wisconsin...more
Julien Dominates Plymouth Finale as Nimee Secures 2025 Bumper to Bumper IRA Sprints C

Julien Dominates Plymouth Finale as Nimee Secures 2025 Bumper to Bumper IRA Sprints C...

9/29/2025
Julien Dominates Plymouth Finale as Nimee Secures 2025 Bumper to Bumper IRA Sprints Championship By Gracie Cleveland The 2025 Bumper to Bumper IRA Sprints season came to an end on a beautiful 80-degree day at the Plymouth Dirt Track. Max Guilford started the action-packed...more

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2017 Rules Update
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12/22/2016

12/22/2016

IRA Interstate Racing Association


2017 Rules Update

IRA, as well as all other major winged sanctions, will be following these 2 rule guidelines released by the World of Outlaws. The World of Outlaws have been working with us, and others, on these every step of the way...... and we agree with them on these two issues.

Attached are two new car spec rules we are implementing for 2017. One is the wheel cover rule that has been out for some time now and the other concerns the carbon fiber issue that we have recently discussed. Hopefully, neither of these rules will adversely effect your program. At this time I don't anticipate any additional car spec rule changes for 2017.

December 17,

WoO Craftsman Sprint Series 2017 Rules Bulletin #1

15.9 Wheels

D.) Wheel covers: it is highly recommended that wheel covers have a minimum of 5 mounting points. However, both 5 and 3 mounting point wheel covers will be allowed for competition under the following conditions: Beginning with the 2017 racing season wheel covers having a minimum of 5 attachment points may continue to use dzus fasteners. Said dzus fasteners must be made of steel only. Wheel covers having only 3 attachment points must be bolted-on at all 3 points utilizing a minimum 5/16”, flanged steel bolt and an approved fastening (nut assembly) system.

Approved fastening (nut assembly) systems: Keyser Manufacturing, part #100 7-101.

Optional fastening systems that are equal or superior to the above approved system will be readily approved at the sole discretion of WoO Technical Officials.

The above information is subject to change per World of Outlaws guidelines.

December 20, 2017

WoO Craftsman Sprint Series 2017 Rules Bulletin #2

15.5 Chassis/Frame

X.) Carbon Fiber: No carbon fiber parts, excluding torque tubes and brake rotors, will be allowed in the suspension (includes radius rods), steering components, or drive line.

The above information is subject to change per World of Outlaws guidelines.


Submitted By: Kim Tennyson

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