Gear Ratios & Final Drive: Road Speed at RPM and Cruise RPM
This lesson is part of the course
In this lesson
You combine six gear ratios with the final drive, turn engine rpm into wheel rpm and road speed in km/h and mph, and find the engine rpm at cruising speed in top gear.
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Lessons in this course
- Engine Displacement from Bore & Stroke: cc, Litres & Cubic Inches Locked
- Compression Ratio: Swept Volume, Clearance Volume & a Head-Milling What-if Locked
- Horsepower & Torque: hp = Torque × RPM ÷ 5252, N·m and kW (with a Dyno Chart) Locked
- Gear Ratios & Final Drive: Road Speed at RPM and Cruise RPM Locked
- Tyre Size Codes: Diameter, Upsizing & Speedometer Error Locked
- Fuel Economy: mpg ↔ L/100 km and Fuel Cost per km Locked
- Brake & Tyre Wear: Measurements, Replacement Thresholds & Conditional Formatting Locked
- Repair Quote: Labour Hours × Rate, Parts Markup, Shop Supplies & Tax (with a Chart) Locked