Big Block Modified Series - 2025 Season 4

logo for SUPER DIRTcar Big Block Modified Series
2025 Season 4 - Races hourly at :00
Long awaited by iRacing's most passionate dirt oval racers, the Big Block Modified Series brings big block modifieds to life on some of the premier circuits across America. Producing nearly 800 horsepower, these beasts are some of the toughest machines you'll wheel around the dirt—but also the most fun.

Overview

  • Category: Dirt oval (3)
  • Track Types: dirt_oval
  • License Group Types: 3
  • Car Classes: [2706]
  • Car Types: dirt, dirtoval
  • Allowed Licenses: Class D 4+, Class C, Class B, Class A, Pro, Pro/WC
  • Allowed Season Members:

Schedule

Week Track Duration Summary Weather
Week 1
(Sept. 16, 2025)		 Limaland Motorsports Park
(2025-09-20T18:15:00 1x ) 		No. Of Laps: 50
  • Start Type: Rolling
  • Start Zone:
  • Temp: 19.4 to 20.8
  • Wind 12.7 to 15.7
  • Dir 5
  • Skies 0 to 0
  • Rain 0 (0 %)
  • None
Week 2
(Sept. 23, 2025)		 Lernerville Speedway
(2025-09-27T13:40:00 1x ) 		No. Of Laps: 50
  • Start Type: Rolling
  • Start Zone:
  • Temp: 22.5 to 23.6
  • Wind 11.6 to 12.6
  • Dir 4
  • Skies 1 to 1
  • Rain 0 (0 %)
  • None
Week 3
(Sept. 30, 2025)		 The Dirt Track at Charlotte
(2025-10-04T17:40:00 1x ) 		No. Of Laps: 50
  • Start Type: Rolling
  • Start Zone:
  • Temp: 19.7 to 21.3
  • Wind 14.3 to 16.7
  • Dir 6
  • Skies 0 to 1
  • Rain 0 (0 %)
  • None
Week 4
(Oct. 7, 2025)		 Kokomo Speedway Tires in
(2026-05-01T15:10:00 1x ) 		No. Of Laps: 50
  • Start Type: Rolling
  • Start Zone:
  • Temp: 19.1 to 19.6
  • Wind 29.8 to 31.8
  • Dir 7
  • Skies 1 to 3
  • Rain 0 (0 %)
  • None
Week 5
(Oct. 14, 2025)		 USA International Speedway Dirt
(2025-10-18T17:40:00 1x ) 		No. Of Laps: 50
  • Start Type: Rolling
  • Start Zone:
  • Temp: 23.6 to 25.4
  • Wind 17 to 19.2
  • Dir 6
  • Skies 2 to 2
  • Rain 0 (0 %)
  • None
Week 6
(Oct. 21, 2025)		 Cedar Lake Speedway
(2025-10-25T13:30:00 1x ) 		No. Of Laps: 50
  • Start Type: Rolling
  • Start Zone:
  • Temp: 20 to 20.5
  • Wind 11.2 to 11.8
  • Dir 5
  • Skies 1 to 1
  • Rain 0 (0 %)
  • None
Week 7
(Oct. 28, 2025)		 Lincoln Speedway
(2026-03-01T15:30:00 1x ) 		No. Of Laps: 50
  • Start Type: Rolling
  • Start Zone:
  • Temp: 19.3 to 19.4
  • Wind 1.8 to 1.8
  • Dir 5
  • Skies 2 to 3
  • Rain 0 (0 %)
  • None
Week 8
(Nov. 4, 2025)		 Eldora Speedway
(2026-04-01T14:00:00 1x ) 		No. Of Laps: 50
  • Start Type: Rolling
  • Start Zone:
  • Temp: 21 to 21.2
  • Wind 12.3 to 13.6
  • Dir 5
  • Skies 2 to 3
  • Rain 0 (0 %)
  • None
Week 9
(Nov. 11, 2025)		 Volusia Speedway Park
(2026-04-01T18:30:00 1x ) 		No. Of Laps: 50
  • Start Type: Rolling
  • Start Zone:
  • Temp: 20.8 to 21.9
  • Wind 17 to 20.7
  • Dir 1
  • Skies 1 to 1
  • Rain 0 (0 %)
  • None
Week 10
(Nov. 18, 2025)		 Oswego Speedway Oval
(2026-04-01T13:20:00 1x ) 		No. Of Laps: 50
  • Start Type: Rolling
  • Start Zone:
  • Temp: 18.4 to 18.3
  • Wind 38.6 to 39.8
  • Dir 4
  • Skies 1 to 2
  • Rain 0 (0 %)
  • None
Week 11
(Nov. 25, 2025)		 Knoxville Raceway
(2025-11-29T14:55:00 1x ) 		No. Of Laps: 50
  • Start Type: Rolling
  • Start Zone:
  • Temp: 20.2 to 21.1
  • Wind 1.8 to 4.4
  • Dir 3
  • Skies 0 to 0
  • Rain 0 (0 %)
  • None
Week 12
(Dec. 2, 2025)		 Lanier National Speedway Dirt
(2026-03-01T13:05:00 1x ) 		No. Of Laps: 50
  • Start Type: Rolling
  • Start Zone:
  • Temp: 23 to 24.2
  • Wind 7.6 to 8.9
  • Dir 5
  • Skies 0 to 0
  • Rain 0 (0 %)
  • None

Configuration

  • Official
  • Rookie
  • Season
    2025 S4
  • Regional Comp.
  • Race Week
    3 (0)
  • Drop Weeks
    4 of 12
  • Multi Class
  • Fixed Setup
  • Drivers
    1 <> 1
  • Cross License
  • Driver Changes
  • Pit Lane Crashes
  • Incident Limit
    12
  • Warn Mode
    0
  • Warn Param 1
    0
  • Warn Param 2
    0
  • Caution Types
    4 /
  • Caution Laps Count
  • GW Checkered Limit
    0
  • Lucky Dog
  • Conduct Rule Mode
    0
  • HardCore Level
  • Car Switching
  • Start on Qual Tyre
  • Short Parade Lap
  • Start Zone
  • Qualifier Starts
  • Heat Racing
  • Num Opt Laps
    0
  • OP Duration (mins)
    120
  • Send to OP.
  • Ignore OP License.
  • OP Session Type.
    170
  • Starters
    6 <> 20
  • Grid By Class
  • Active
  • Complete
  • Diff. Race Tyres
  • Super Sessions
  • Member Restriction
  • Car Restriction
  • View Restriction
  • Start
    2025-09-16… (6)