1. What is Transmission Gear Ratio?

The gear ratio is a measure of the rotational speed of two or more interlocking gears. For Honda transmissions, this ratio is specific to each model and affects vehicle performance and fuel efficiency.

2. How Does the Calculator Work?

The calculator uses the basic gear ratio formula:

Where:

• Input Shaft Speed — RPM of the transmission input shaft
• Output Shaft Speed — RPM of the transmission output shaft

Explanation: The ratio shows how many times the input shaft must rotate to produce one rotation of the output shaft.

3. Importance of Gear Ratio Calculation

Details: Knowing your transmission's gear ratio helps in diagnosing performance issues, selecting proper replacement parts, and optimizing vehicle performance.

4. Using the Calculator

Tips: Enter both input and output shaft speeds in RPM. Values must be greater than zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: Where can I find these speed values?
A: Input speed can be measured at the crankshaft, output speed at the driveshaft using appropriate RPM measuring tools.

Q2: What are typical Honda transmission ratios?
A: Honda transmission ratios vary by model but typically range from 2.5:1 to 4.5:1 for first gear in most passenger vehicles.

Q3: How does gear ratio affect performance?
A: Lower ratios provide more torque for acceleration while higher ratios provide better fuel economy at highway speeds.

Q4: Are these ratios constant across all gears?
A: No, each gear (1st, 2nd, etc.) has its own specific ratio in the transmission.

Q5: Can I use this for automatic transmissions?
A: Yes, though automatic transmission ratios may vary more due to torque converter slip and other factors.