SCS Gear Calculator: Optimize Your Truck's Performance
In games like Euro Truck Simulator 2 (ETS2) and American Truck Truck Simulator (ATS) by SCS Software, understanding your truck's gearing is crucial for optimizing performance, fuel efficiency, and top speed. Whether you're hauling heavy loads up steep inclines or cruising on flat highways, the right combination of engine RPM, transmission gear, differential ratio, and tire size directly impacts how your truck performs.
This SCS Gear Calculator helps you determine your truck's road speed based on these key parameters. By inputting your engine's current revolutions per minute (RPM), the selected transmission gear ratio, your truck's differential (final drive) ratio, and the diameter of your drive tires, you can predict your truck's speed in both kilometers per hour (km/h) and miles per hour (mph).
Understanding the Key Parameters:
- Engine RPM: This is how fast your engine crankshaft is spinning. Higher RPM generally means more power, but also more fuel consumption. You'll typically operate within a specific RPM range for optimal performance and efficiency.
- Transmission Gear Ratio: Each gear in your truck's transmission has a specific ratio. First gear has a very high ratio (e.g., 12.00:1) for maximum torque, while top gears (often overdrive gears) have ratios less than 1.00 (e.g., 0.78:1) for fuel-efficient cruising.
- Differential Ratio (Final Drive Ratio): This is the ratio in your truck's rear axle(s). It's a fixed ratio that further multiplies or divides the speed coming out of the transmission before it reaches the wheels. Common ratios for trucks might range from 2.64:1 for highway cruising to 4.10:1 for heavy hauling.
- Drive Tire Diameter (inches): The overall diameter of your truck's drive tires. Larger tires will result in higher road speed for the same engine RPM and gearing, but can reduce effective torque.
Use this calculator to experiment with different setups, understand the impact of changing gears, or plan your truck builds for specific hauling needs in your favorite SCS simulation game!
SCS Truck Speed Calculator
Enter values and click 'Calculate' to see your truck's speed.