A rolling road session, also known as a dyno run (dynamometer run), is a test used primarily in the automotive world to measure a vehicle's power output and performance. In these sessions, the car's wheels are placed on rollers that simulate road conditions while the engine is run through its rev range. The dynamometer measures the car's horsepower, torque, and other performance metrics like air-fuel ratio and engine health.
Key Aspects of a Rolling Road Session:
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Horsepower & Torque Measurement: It gives an accurate reading of the engine’s power output at the wheels (wheel horsepower), which can differ from the engine’s actual output due to drivetrain losses.
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Air-Fuel Ratio Tuning: Ensures that the car is running an optimal fuel mixture, which can help with both performance and fuel efficiency.
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Diagnostics: It can be used to identify potential issues in the engine, fuel system, or tuning problems that aren’t noticeable during normal driving.
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Performance Tuning: Rolling roads are often used when tuning vehicles (like remapping the ECU or adjusting aftermarket parts) to optimize performance and reliability.
Is It Worth the Money?
It depends on your goals:
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Performance Enthusiasts: If you’ve modified your vehicle (e.g., intake, exhaust, turbochargers, or remapping), a rolling road session is almost essential to ensure that the vehicle is running optimally and safely.
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Diagnostics & Troubleshooting: It’s also useful if you suspect performance issues or want a thorough check on how your car is performing.
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General Drivers: If you’re not modifying or pushing your car to its limits, a rolling road session may not provide much value.
Cost
Prices for rolling road sessions vary but start at £480 for a session, and any troubleshooting / diagnostics are additionally charged per hour. We partner with RLM Racing in Rutland who tune all our vehicles.
If you're looking for a good reliable rolling road tuner, then we contact them directly at
RLM Racing
Unit 2, Fernie Court, Station Road, Uppingham, Oakham, Rutland, LE15 9US
Tel : 01572 868410
Email : info@rlmracing.com