Dyno Day Prep

Vehicle Fitment & Safety

• 2WD only (no AWD at this time).
• Maximum dyno width: 80". Wide-stance trucks may not fit (we can street tune those).
• Dyno testing is stressful and will expose weak links. Arrive with a healthy, roadworthy car.

If you’re also getting a street tune, remember: we’ll be driving the vehicle — it must be safe and fully functional.

What Our Dyno Does

Our Mustang MD-500 applies real load and resistance to the entire drivetrain — engine, transmission, driveshaft, differential, axles, and wheel bearings — to simulate true road conditions. This lets us optimize fueling and timing safely and repeatably instead of chasing one “hero pull.”

Tune-Up Recommendations (Before You Book)

• Engine oil: change every 3,000 miles.
• Air filter: replace/clean if older than 12,000 miles.
• Coolant, transmission, differential fluids: replace if older than 30,000 miles.
• Spark plugs & wires:
  • Boosted: replace every ~20,000 miles.
  • Naturally aspirated: replace every ~50,000 miles.

Ignore generic manufacturer intervals for performance builds — proactive maintenance keeps you safe on the rollers.

Pre-Dyno Checklist

EFI, Injectors & Software

• Fuel injector sizing: if the engine is modified, verify injectors are adequate (use a fuel-injector calculator).
• Aftermarket injectors: bring calibration data in a spreadsheet — “I have 60 lb injectors” isn’t enough.
• Aftermarket EFI (Holley, Terminator, Edelbrock, AEM, etc.):
  • Bring required cables/dongles.
  • Provide the correct tuning software or a download link.

Engine Swaps & High-Performance Builds

Plan and budget to get your build truly dyno-ready. Dyno day is not the time for repairs. If you’d rather skip the wrenching, our Dyno Prep Service is billed at $220/hr with parts billed separately.

• If we identify an issue (e.g., faulty sensor) when tuning, you are welcome to repair it yourself on-site using your own tools (realistically, this usually means working in the parking lot).
• If you prefer not to handle repairs, our Dyno Prep work is billed at $220/hr. A typical 4-hour prep runs about $880 in labor, with parts billed separately.
• This service is limited to minor diagnostics and repairs involving electrical systems, engine sensors, fuel, ignition, and cooling systems, or corrections to weak points exposed on the dyno (commonly undersized fuel systems or poor-quality parts).
• Lead time will vary, and may not be the same day.

Common Issues to Address

• Scan for codes: Autel AL319, Hyper Tough HT300, or Zurich ZR8 recommended.
• Verify live data from key sensors:
  • Oil pressure: 25+ psi warm.
  • Coolant temp: stable 180–225°F.
  • O₂ sensors: switching properly between ~100 mV and ~900 mV.
  • MAF: ~6–10 g/s at idle.
  • MAP: ~35–45 kPa at idle (up to ~55 kPa with big Stage 4+ cam), ~100 kPa at WOT.
  • TPS: steady, no erratic behavior.

Boosted MAP Sensors

• 2-Bar (GM #213-1520): up to ~15 psi.
• 3-Bar (GM #12223861): up to ~30 psi.

Fuel System Essentials

• Properly sized injectors: don’t guess.
• Avoid cheap injectors: bargain “LS3” sets are a false economy.
• Stable fuel pressure: basic LS1 regulators struggle with larger pumps (e.g., >255 LPH).
• Good regulators: Summit SUM-220066 or Radium RAD-20-1623-00 are solid picks.

Final Steps

Yes, it’s a lot — but prepping now saves hours (and dollars) later. Follow this checklist and you’ll get cleaner data, safer pulls, and better results on dyno day.