HOW TO SET UP AND TUNE YOUR WIND SIMULATOR IN SIM HUB: THE WIND SIM GUIDE

WELCOME TO THE WIND SIM

This guide will help you understand and tune the most important Sim Hub Shake It Wind settings so you can get the airflow response and driving experience you prefer.

Whether you’re setting up The WIND SIM for the first time or fine-tuning an existing wind simulator, we recommend starting with a simple configuration, changing one setting at a time, and adjusting the system based on what feels best on track. One of the advantages of a telemetry-driven wind simulator is the ability to customize how airflow responds to what is happening on track. Sim Hub’s Shake It Wind settings give you control over overall wind strength, vehicle-speed response, left/right airflow variation, drafting, minimum ventilation, and fan output behavior. There is no single correct configuration. Some drivers prefer strong, continuous airflow, while others want more noticeable changes during cornering and drafting. This guide explains the most useful Shake It Wind settings and provides practical recommendations for getting started.

SPEED-BASED WIND POWER RANGE

The Speed-Based Wind Power Range controls the minimum and maximum fan output that the vehicle-speed effect is allowed to command.

Min sets the fan power at the low end of the speed-based effect, while Max sets the highest fan power the effect can command when it reaches full scale.

For example, setting Min to 20% and Max to 80% means the speed-based wind effect operates between 20% and 80% fan output.

If you want the widest available range of airflow, start with a low minimum and a high maximum. You can then adjust these values based on your preferred airflow strength and the operating characteristics of your fans.

LEFT/RIGHT CURVING EFFECT

The Left/Right Curving Effect controls how strongly airflow shifts between the two fans while cornering.

Lower values maintain more consistent airflow from both fans. Higher values create stronger left/right separation and may cause one fan to slow significantly or even turn off while the opposite fan produces much stronger airflow.

GSC RECOMMENDATION: Use this effect moderately. Some left/right variation can add immersion, but too much separation can cause noticeable fan cycling and reduce the feeling of continuous airflow. For a two-fan wind simulator, we prefer maintaining consistent overall airflow while using enough left/right variation to make cornering noticeable.

MAXIMUM VEHICLE SPEED: AUTOMATIC VS. MANUAL

The Maximum Vehicle Speed sets the telemetry speed at which the speed-based wind effect reaches its maximum configured output.

Automatic allows Sim Hub to determine the maximum vehicle speed based on the vehicle’s telemetry.

Manual allows you to choose a fixed maximum speed. This can be useful if you want more control over how quickly the fans reach their maximum configured output or prefer consistent behavior across different vehicles.

Remember that reaching the Maximum Vehicle Speed means reaching the maximum output allowed by your current configuration. Other settings, including your Wind Power Range and curves, may affect the final fan output.

DRAFTING EFFECT

The Drafting Effect reduces wind output when your vehicle is closely following another car, simulating the reduced airflow experienced in the vehicle’s slipstream. The setting controls the strength of the reduction. Higher values create a larger decrease in fan speed while drafting, while lower values make the effect more subtle. Like the Left/Right Curving Effect, this setting is largely a matter of preference. A stronger effect creates more noticeable telemetry-driven changes, while a lower setting maintains more consistent airflow.

COCKPIT MODE

Sim Hub’s description of Cockpit Mode is fairly self-explanatory. In practice, Cockpit Mode provides a minimum level of ventilation whenever the vehicle is active.

For example, when set to 10%, the fans maintain at least 10% output while you are in the car.

As you begin driving, the speed-based wind effect increases airflow according to your other settings. Cockpit Mode can be useful for drivers who prefer continuous airflow rather than having the fans completely stop while sitting in the pits, on the starting grid, or at very low speeds.

FAN SPEED CORRECTION CURVE

The Fan Speed Correction Curve allows you to fine-tune fan output at specific power levels.

For example, Sim Hub may call for 30% wind power, but you may prefer stronger airflow at that point.

The correction curve can be adjusted so the fan receives a higher output instead. Likewise, if your fans feel too strong within a particular portion of their operating range, you can reduce the output in that area of the curve. If your fans respond the way you like, leave the Fan Speed Correction Curve linear or at its default setting. Only adjust it when you specifically want more or less fan output at certain percentages. The correction curve is best thought of as a fine-tuning tool rather than a setting that must be adjusted.

CHOOSING A SPEED CURVE

The Speed Curve determines how quickly wind output increases as vehicle speed increases. A linear curve provides a predictable and proportional increase in airflow. As vehicle speed rises, fan output increases steadily until the configured Maximum Vehicle Speed and maximum wind output are reached. This is the configuration we recommend as a starting point. Drivers who prefer stronger airflow earlier in the vehicle’s speed range can create a curve that rises more quickly before gradually flattening near maximum output. This allows the fans to reach higher output sooner and remain near maximum airflow across more of the vehicle’s speed range.

There is no universally correct curve. The best setting depends on the type of vehicle being driven, the airflow capability of the fans, the distance between the fans and the driver, and personal preference.

A GOOD STARTING POINT

For most users, we recommend beginning with a simple configuration.

  1. Use a linear Speed Curve. Leave the Fan Speed Correction Curve at its default setting.
  2. Use moderate Left/Right Curving and Drafting Effects.
  3. Adjust the Wind Power Range and Maximum Vehicle Speed until the overall airflow feels comfortable.
  4. Change one setting at a time and test the result on track. Making several adjustments simultaneously can make it difficult to determine which setting improved—or worsened—the experience.

Once you have established a comfortable baseline, Sim Hub’s ShakeIt Wind controls provide plenty of room to customize the system for different vehicles, tracks, and personal preferences.

FINAL THOUGHTS

A wind simulator does not need extreme settings to improve immersion. In many cases, consistent airflow with subtle telemetry-driven changes feels more natural than maximizing every available effect. Use the settings in this guide as a starting point, experiment with the available controls, and build a configuration that feels right for your simulator and driving preferences.

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