PIT BOARD

Park Jefferson Speedway

North Sioux City, SD — 4/10

DIRT OVAL

TRACK SCIENCE · USDA SSURGO

50%CLAY

5.3%SAND

44.7%SILT

Aquents · Poorly drained

Forney silty clay

High-clay substrate — holds moisture; watch for sealed/slick transitions as the night progresses.

Open dirt-tracks dataset · Garage setup tools

Pick your class in Black Book Garage — stagger matrix adjusts for track size and banking.

4/10

SIZE

clay

SURFACE

UNKNOWN

BANKING

TIMEGRAM · PARK JEFFERSON SPEEDWAY FRAMEinkwell.wiki/park-jefferson-speedway-sd SETUP TOOLSSTAGGER · SCALE · GEAR · HUNTER FAN ZONELIVE AUDIO · NEARBY TRACKS

MERCH STUDIO · PRINTFUL

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HUNTER'S COLUMN

Weekly setup science from the AI crew chief — stagger, DA, track walks, the stuff your crew chief won't write down. All columns → · Latest

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