What is the best gear ratio for gas mileage?
What is the best gear ratio for gas mileage?
The lower the number, the better fuel economy, and the higher the number the more towing power you have, but fuel economy suffers. For instance, a 3:31 gets better fuel economy than a 3:73. On the other hand, a 3:73 or perhaps a 4:10 will tow much more, while fuel economy greatly drops.
Is 4.30 a good gear ratio?
A 4.30 ratio will give you better low end acceleration but also lower gas mileage. A 3.73 ratio will still provide decent acceleration but will also provide a tad better mileage plus give you a higher top end speed.
How do I choose a truck axle ratio?
Method 1: Count the number of teeth on the ring gear and the pinion. Divide the number of the ring gear’s teeth by the number of the pinion’s teeth. This will give you the axle ratio.
What gear ratio is best for big tires?
Depending on the axle, the next lowest ratio from a 4.10:1 is most likely the 4.56:1, which should be selected for towing and performance. Because of the extra weight associated with off-road tires, we usually recommend going with a performance-minded gear ratio for any tire size above 35 inches.
Do larger tires lower gear ratio?
If the Tires Are Bigger, the Gears Should Be Lower. Going to lower gears (ironically, a numerically bigger ratio) will increase the rpms of an engine (taking for granted the same diameter tire and going the same speed).
What makes a good gear ratio for a truck?
In the end, it’s easy to see that mistakes in gearing can craft a truck load of trouble. The real key to optimum performance is to take the engine torque curve, the transmission gear ratios, rear axle ratio and tire diameters into consideration as a total package.
What should the after ratio be on a 4×4?
Calculating for the after ratio of 4.88 gears and 38 ” tires gives the RPM of 2805. To sum it all up it can be handy to use this table for both your front and rear axle gear ratio selection. It is based on the above formula.
What is the rear axle ratio in trucks?
The term refers to the gears in the truck’s differential, which is a mechanical device that links the rear axle to the driveshaft and then the engine. Technically, the number should be expressed as a ratio, such as 3.55:1, meaning the drive shaft turns 3.55 times for each turn of a wheel.
When to change the rear end gear ratio?
Switching your rear end gear ratio helps your gas mileage or improves your power! If you’re looking for better gas mileage, you want to switch to a higher gear ratio. If your looking for more power or performance, you would switch to a lower ratio.