Proper dyno procedures vary depending on the context: are you referring to dyno testing a vehicle or performing a dyno (dynamic) move in climbing? This answer addresses both interpretations.
How to Properly Dyno Test a Vehicle
Properly dyno testing a vehicle involves several key steps to ensure accurate and consistent results. This process often depends on the specific vehicle and dyno type. Here's a generalized approach:
1. Preparation:
- Vehicle Preparation: Ensure your vehicle is in optimal condition. This may include checking fluids, tire pressure, and ensuring the vehicle is properly warmed up according to the dyno operator's instructions. Some vehicles might require specific "dyno modes" to be activated (as seen in the references related to the GR Corolla and McLaren MP4-12C). Check your vehicle's manual or consult your mechanic for specific guidance.
- Dyno Setup: The car should be securely positioned on the rollers, ensuring the front wheels (or rear, depending on the vehicle and dyno type) are correctly engaged. Properly securing the handbrake and following the dyno operator's instructions is vital for safety and accurate readings.
2. Testing Procedure:
- Consistent Runs: Perform multiple runs to gather consistent data and minimize discrepancies due to factors like temperature changes or minor variations in driving technique. Aim for multiple runs with consistent horsepower readings (within a small margin of error, such as +/- 2hp, as cited in some references).
- Driving Technique: Maintain a consistent throttle application and shifting pattern throughout the runs. Avoid sudden inputs which may affect results.
- Data Analysis: Carefully analyze the data provided by the dyno. Look for consistent peak power numbers and examine the torque curve to understand the engine's performance across different RPM ranges.
3. Additional Considerations:
- Drive Mode: For some vehicles, engaging specific drive modes (like FWD) may alter the reported power due to changes in drivetrain losses (as mentioned in references on GR Corolla). The dyno operator should guide you here.
- Traction Control: Disabling traction control or other electronic stability systems may be necessary, but always follow the dyno operator's guidance on this.
- Transmission: Proper gear selection can impact the readings. Some resources recommend specific gears for certain vehicles (such as using 4th gear for a DCT transmission). Listen to your operator.
How to Properly Dyno (Climbing Move)
A dyno, in climbing, is a dynamic move where you launch yourself to a hold. Proper execution involves:
- The "Pump": Use your legs to generate power for the movement, similar to a jump. "Pumping" your body upwards improves the dynamic force. Sink low before launching to maximize your power. (as cited in FrictionLabs blog)
- Arm and Body Tension: Maintain straight arms for optimal leverage and body tension throughout the jump. Keep your feet high to help with momentum. (as cited in Climbing.com)
- Target Focus: Maintain focus on your target hold, ensuring a controlled and precise launch.
Practicing Dynos:
Start with shorter dynos on easier routes to master the technique before attempting larger or more challenging ones. Focus on the correct body mechanics and gradually increase the distance and difficulty.
