Mini Stock

TYRES

• Street stock radial, Front 32.0 PSI, Rear 30.0 PSI, no tyre blankets (not permitted in this class)

ELECTRONICS

• TC: N/A (not equipped), ABS: N/A (not equipped), Engine braking: fixed (no adjustment), Brake Bias: 58.0% front

SUSPENSION

• // FRONT
• Ride Height: 95 mm
• Wheel Rate FL / FR: 420 N/m / 460 N/m
• ARB: 180 N/m
• Brake Torque Multiplier: 100%
• Brake Bias: 58.0%
• // REAR
• Ride Height: 100 mm
• Wheel Rate RL / RR: 150 N/m / 170 N/m
• ARB: 0 N/m (disconnected)
• Diff Preload: N/A (solid/spool rear axle typical for Mini Stock)
• Diff Coast: N/A
• Diff Power: N/A

DAMPERS

AERO

• No adjustable aero elements on Mini Stock (fixed body/splitter per spec rules)

KEY SETUP NOTE

• With a solid rear axle and asymmetric wedge-style cross weight tuning being the primary handling tool, lean on left-side weight bias (via ride height split) and stagger-like wheel rate asymmetry to force the car to rotate off the short straights without inducing snap oversteer under trail braking into Turns 1 and 3.

TRACK GUIDE

• Turn 1 entry is the biggest time gain zone: brake extremely late, trail off the pedal progressively while rotating the car early using the banking to carry speed through the middle.
• Iowa's high banking (10–12°) lets you carry significantly more min-speed than expected — commit to full throttle earlier than feels natural through Turns 2 and 4.
• Protect rear grip exiting Turns 2 and 4; the Mini Stock's low power means any wheelspin costs more than entry speed gained — prioritize a clean, early, straight exit.
• Use all of the apron/banking transition smoothly; dropping a wheel off the racing groove here kills momentum into the short chutes.
• Qualifying lap = one continuous rhythm — avoid any mid-corner correction since there's no second chance to recover lost momentum on this short 0.875-mile oval.