How do you calculate the differential gear ratio?
Enter the maximum potential safe engine RPM. Enter the tire size diameter and the target vehicle speed in MPH. Click “Calculate Gear Ratio”. The value will be returned in estimated differential gear ratio, based on the entered values…
What’s the name of the rear differential gear?
Besides the gears in the transmission, there is also a gear in the rear differential. This is known as the final drive, differential gear, Crown Wheel Pinion (CWP) or ring and pinion. In the table below you can see the top speed in each gear for different final drive ratio’s.
Why do you need a higher gear ratio?
Choosing your right gearing is all about ‘compromise’. A lower (taller) gear ratio provides a higher top speed, and a higher (shorter) gear ratio provides faster acceleration. . Besides the gears in the transmission, there is also a gear in the rear differential.
Can a tuner change the gear ratio of a transmission?
Luckily, some tuners, such as Sharkwerks, can alter the transmission’s gear ratios to improve acceleration and shifting frequency. There’s also the axle ratio to consider. As with the transmission, changing the axle ratio changes vehicle performance.
How do you calculate tire RPM?
If you want to determine rpm at a speed other than 60, or for a combination of ratio and tire size not indicated here, the formula is: MPH x Drive Ratio x 336 = RPM. Tire Diameter. If you’d like to know your speed at a given rpm, the formula is: RPM x Tire Diameter x 336 = MPH.
What is lower gear ratio?
A lower (numerically higher) gear ratio, such as 3.55:1 to 4.10:1, provides more low-speed wheel torque, which means it takes less throttle to get the vehicle and the load it’s carrying or towing moving.
What is the gear ratio of a rear end?
Rear end gear ratios or final drive ratio refers to the number of revolutions the drive shaft turns compared to one full revolution of rear wheels. A 2.90 gear ratio means the drive shaft turns 2.9 times in one full turn of the rear wheels.
What is axle gear ratio?
An axle ratio or a gear ratio refers to the number of times the drive shaft rotates for every single rotation of the vehicle’s drive tires. This axle ratio number is important in understanding a vehicle’s performance potential as well as fuel consumption and engine speed at any given miles or kilometers per hour measurement.