2026 Modified Rules

September 7, 2026

For 2026 rules, click here: 2026 Modified Rules

Frame Dimensions
1964-1967 Chevelle
1968-1972 Chevelle
1977 Impala
1978 Impala

Click HERE to Download the IMCA Modified Decals

2026 Super Nationals

Super Nationals Tuesday Start Moved Up With Threatening Weather in Forecast

By Ben Deatherage BOONE, Iowa (Sept. 7, 2026) — Tuesday’s racing program at the Speedway Motors IMCA Super Nationals fueled by Casey’s will get an earlier start as officials take a proactive approach to anticipated weather later in the day. Registration and the pit gates will open at 8 a.m. on Tuesday, Sept. 8. Following opening ceremonies, Mach-1 IMCA Sport Compact hot laps will begin at 10 a.m., with racing to follow. Moving the schedule forward will give officials the best opportunity to complete Tuesday’s entire program with rain forecasted in the evening. The day will feature the second night of qualifying for the Karl Kustoms IMCA Northern SportMods and Sunoco IMCA Hobby Stocks. The IMCA Sport Compacts will take center stage for their championship program, culminating with the Big Dance to determine the 2026 Super Nationals champion. Tuesday’s program will also include the Stephenville Starter Hobby Stock Race of Champions and the Pulse Racing Innovations/Dirt Defender Racing Products SportMod Race of Champions. All the action can be watched exclusively on IMCA.TV, where America comes to [Read More]

2026 Super Nationals

Super Nationals Tuesday Start Moved Up With Threatening Weather in Forecast

2026 Super Nationals

Raffurty Racesto Third Mod Lite Super Nationals Crown

By Ben Deatherage BOONE, Iowa (Sept. 7, 2026) — Dillon Raffurty added another chapter to his impressive Speedway Motors IMCA Super Nationals fueled by Casey’s résumé Monday, racing to his third career Stealth Racing IMCA Mod Lite Big Dance victory at Boone Speedway. The Kansas City, Mo., driver started sixth in the 30-lap championship feature, worked his way to the front on lap 11, and held off Bryce Vowan following a late restart to add the 2026 crown to his victories in 2021 and 2022. The Big Dance and the final qualifier, originally scheduled for Sunday, were pushed to Monday after heavy rain forced the postponement of Sunday’s program. Austin Gray, last year’s Boone Speedway track and Iowa State champion, emerged from the three-wide start to lead the opening circuit. A caution slowed the action on lap one, but Gray again took off following the restart. His bid for the championship ended moments later when he went off turn two and crashed into the wall, bringing out another caution on lap two. That handed the lead [Read More]