Mars Racing Series approved DIRTcar UMP racing tires are: LM 20’s, 30’s, 40’s
THIS WEEKEND TIRE RULE FOR SPOON RIVER
Hoosier LM 20/30/40 option on LF,RF,LR.
Hoosier LM 20/30/40 option on RR.
Driver MUST run same (4) tires through the B-Mains.
Driver MAY change (1) tire for the feature.
DIRTcar UMP Rules, governing mechanical rules and chemical alteration of tires are in effect.
Tire inspection can be performed by Mars Late Model Tour Officials and/or DIRTcar UMP Officials at any time throughout the event day including but not limited to; on the grid, in the designated inspection area, post-race inspection or in an individual team’s pit stall.
Standard Race Day Format:
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Qualifying (2 laps)
- A & B Group Qualifying – (if 28 cars+)
- Straight Up Qualifying – (if under 28 cars)
- (Overall Fast Qualifier to front stretch before opening ceremonies for interview and pictures)
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Heat Races (10 laps) – Car count determines number of heats
- 3 Heat Races (10 laps) Top 5 transfer to A-Main (Top 5 to scale) (Under 28 cars)
- 4 Heat Races (10 laps) Top 4 transfer to A-Main (Top 4 to scale) (28-49 cars)
- 6 Heat Races (10 laps) Top 3 transfer to A-Main (Top 3 to scale) (50+ cars)
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Redraw for A-Main
- Heat Race Runner-Ups Draw (4-6 or 5-8)
- Heat Race Winners Draw (1-3 or 1-4)
- (If more than 4 heats ONLY winners redraw)
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B-Mains (10 laps) – Car count determines number of races
- 1 B-Main (10 laps) Top 5 transfer to A-Main (Top 5 to scales) (Under 28 cars)
- 2 B-Main’s (10 laps) Top 2 transfer to A-Main (Top 2 to scales) (Over 30 cars)
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2 Provisional Starters each event
- 1 – Mars Series provisional – (based of highest Mars points driver not transferred into A-Main) (1st race of year based off previous season points)
- 1 – Track provisional – (track/series discretion)
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Feature Event – Laps & Purse varies per event
- Top 3 finishers always to front stretch for interviews and pictures
- (Top 5 to scales)