What Speed Ratio is Suitable for 460 Horsepower?
1 Answers
The default standard speed ratio is 3.7, with an optional ratio of 3.364. Here are the details: 1. Drive Axle: The rear axle of a truck tractor is the drive axle. Both 3.0 and 3.7 speed ratios have their advantages. Whether a different ratio saves fuel depends on the optimal operating conditions. The drive axle is also a reduction mechanism. With the same transmission, a drive axle with a 3.0 speed ratio is closer to the output speed of the transmission compared to a 3.7 ratio, meaning higher RPM at the same gear. 2. Output: During vehicle operation, under ideal conditions—standard load, flat roads, and stable cargo—the power output is high-speed and stable, with higher vehicle speed and lower torque. In such cases, a rear axle with a 3.0 speed ratio is more fuel-efficient.