Engine Tab
There are 2 types of engines Basic and Advanced. A Basic Engine uses simple drivers to drive the vehicle and Advanced uses a Engine Simulator to drive the vehicle.
Basic Engine:
The basic engine parameters allow for simple control over the vehicle's performance. The Speed setting might be used to set a constant speed for the vehicle, while the Torque setting would affect its power output and acceleration characteristics.

- Speed: This parameter sets the target speed of the vehicle.
- Torque: This parameter set the rotational force to the wheel. A higher value would likely result in more power and acceleration in the simulation.
Advanced Engine:

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Engine Presets: This is a list of default and custom presets.
- Preset List: Drop down Menu of Engine Presets.
- Preset Name: Name of Engine Preset.
- Add Preset: Adds a new Engine Preset
- Duplicate Preset: Duplicates current Engine Preset
- Delete/Reset Preset: Deletes current Custom Preset or Resets Default Preset.
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Engine Specs Tab:

- Enable/disable Torque Curve: When enabled the torque uses the float graph and when disabled it uses the torque parameter table.
- Torque Curve: The curve graph shows the engine's torque output across different RPM ranges.
- Max RPM: Maximum engine RPM.
- Max Torque: Maximum Torque available in curve graph. Its important to note this isn't necessarily your peak torque.
- RPM and Torque Values: The table shows what your torque values are at different RPM. RPM in red is just show, do not change.
- Top Gear: This parameter sets the highest gear available in the vehicle's transmission. It determines the total number of gears the vehicle has.
- Drive Ratio: This parameter affects the overall gearing of the vehicle. It's typically the final drive ratio, which is the gear ratio between the transmission and the wheels. A higher drive ratio provides more torque at the wheels but reduces top speed, while a lower ratio does the opposite.
- Gear Ratios: The table shows each gear ratio and determines how engine speed is converted to wheel speed in that particular gear. Lower gears (with higher numbers) provide more torque for acceleration, while higher gears (with lower numbers) allow for higher top speeds. Gears in red is just show, do not change.
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Engine Behavior Tab:
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There are two modes: Automatic and Manual, which refers to the transmission type and control method for the engine.

- RPM Shift Gear Up: Set to 3500. This is the engine speed at which the vehicle will shift to a higher gear in automatic mode.
- RPM Shift Gear Down: This is the engine speed at which the vehicle will shift to a lower gear in automatic mode.
- RPM Idle: Set to 800. This represents the engine speed when the vehicle is stationary with the engine running.
- RPM Speed: This represents a multiplier for engine speed calculations.
- RPM Up Increments: This controls how quickly the engine RPM increases when accelerating.
- RPM Down Increments: This controls how quickly the engine RPM decreases when decelerating.
- RPM Noise: This adds random variations to the engine RPM for more realistic behavior.
- Reset Engine on first frame: If option is checked, the engine state will be reset at the start of each simulation.
- Auto Throttle: When checked, the engine throttle will automatically try to reach the set Target Speed. When unchecked, the engine will be controlled by the throttle.