Free Setup Guide
ARCA Chevrolet SS
EchoPark Speedway - Oval
iRacing
Updated Oct 26, 2026
// AI Setup Engineer
TYRES
- Compound: Short track option tire (ARCA spec)
- Left side (LF/LR): 20.0 PSI
- Right side (RF/RR): 50.0 PSI cold
- Tyre blanket temp: N/A (not used in ARCA)
ELECTRONICS
- TC: N/A (not equipped)
- ABS: N/A (not equipped)
- Engine Braking: N/A
- Brake Bias: 58.0% front
SUSPENSION
- // FRONT
- Ride Height: 89 mm (LF) / 92 mm (RF)
- Wheel Rate FL / FR: 16000 N/m / 17500 N/m
- ARB: 28000 N/m
- Brake Torque Multiplier: 100%
- Brake Bias: 58.0%
- // REAR
- Ride Height: 95 mm (RL) / 98 mm (RR)
- Wheel Rate RL / RR: 13500 N/m / 14500 N/m
- ARB: 9500 N/m
- Diff Preload: 55 Nm
- Diff Coast: 0.6
- Diff Power: 0.8
DAMPERS
| Slow Bump | Slow Rebound | Fast Bump | Fast Rebound | |||||
|---|---|---|---|---|---|---|---|---|
| FL | 2800 Ns | m | 4200 Ns | m | 1400 Ns | m | 2100 Ns | m |
| FR | 3200 Ns | m | 4800 Ns | m | 1600 Ns | m | 2400 Ns | m |
| RL | 2200 Ns | m | 3400 Ns | m | 1100 Ns | m | 1700 Ns | m |
| RR | 2600 Ns | m | 3900 Ns | m | 1300 Ns | m | 1950 Ns | m |
AERO
- Spoiler angle: 70° (max for qualifying trim)
- Front splitter/air dam: minimum clearance, as low as rules allow (~Front RH limit above)
- Grille tape: 100% closed
- Downforce priority: rear stability sacrificed slightly for lower drag on straights
KEY SETUP NOTE
- EchoPark (Dover) is a high-banked (24°) concrete monster — run max left-side stagger-style cross weight bias via wedge/spring asymmetry (lower LF rate relative to RF, stiffer RR vs RL) to maximize forward bite off turn 2 and turn 4 while keeping the car tight enough on entry to carry speed deep into the corners without pushing into the wall.
TRACK GUIDE
- Turn 1 entry is flat-out commitment — lift only fractionally, trail brake extremely late using the high banking to carry speed; the wall is your reference, not your fear
- Mid-corner on the banking requires constant throttle modulation — full commitment to the bank lets the car rotate itself; lifting too early kills exit speed down the back straight
- Traction off Turn 2 and Turn 4 is where lap time is made — get back to throttle as early as possible, let the stagger and diff do the rotation work rather than steering input
- Run as high as possible on the banking through the center of both turns to use the full radius and carry more minimum speed, dropping low only on exit for drive
- Tire temps build quickly on this concrete surface — in a single hot lap, the first lap out of the pits before tire degradation sets in is your only true banzai attempt, so commit fully from the moment you cross the line
// Theoretical Best
0:22.800
— theoretical single-lap pace based on top ARCA qualifying runs at Dover, dry/optimal track conditions
// Real World Record
0:22.868
— Sammy Smith, 2023, ARCA Menards Series Qualifying, Dover Motor Speedway
// Sim Record
0:22.950
— iRacing ARCA Menards Series, official qualifying hotlap, dry/optimal conditions (community best estimate)
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