Need a simple solution to calculate gears for your RC Drift Car without the hassle of downloading an app? Our RC Drift Car Gear Ratio Calculator is here to help! Designed for all RC Drift Car enthusiasts, whether you’re tuning an MST, ReveD, Yokomo, Sakura, or any other brand. Using our tool makes it super easy to find the perfect pinion and spur gear combination.

Calculate Gear Ratio:

Getting your gear setup just right is crucial for optimizing performance. That’s where our calculator comes in handy. By simply entering a few details about your car, you can uncover the ideal gear ratios. This will help you to boost your car’s handling and speed on the track. Not only does it save you time, but it also removes the guesswork from the equation.

Calculate Final Drive Ratio:

Our RC Drift Car Gear Ratio Calculator doesn’t stop at just finding the right gear ratio. If you want to dive deeper into customisation, you can input your car’s internal drive ratio (the diff ratio) to see the final drive ratio (FDR). This feature is great for those looking to fine-tune their setups to achieve maximum efficiency and performance.

Additionally, you’ll see the percentage change in gearing that results from switching up your pinion and/or spur. As a result, giving you a clear picture of how your modifications will impact your car. A common ratio here to use is 2.6 if you use a yokomo YD2 gear diff. MST RMX 2.0 use 3.08 for stock setup. MST RMX 2.5 S gear ratio with their spur gear gearbox is 3 as stock.

Calculate Rollout:

That’s not all! For an even more tailored setup, our calculator allows you to add the diameter of your car’s tires. This lets you work out not only your current rollout but also how potential changes to your gear setup will affect your new rollout.

Understanding your car’s rollout is essential for matching your car’s speed to the track. As a result, ensuring that you have the grip and acceleration needed to dominate your races.

Give our RC Drift Car Gear Ratio Calculator a try today and see how easy it is to optimize your RC Drift Car’s setup for better performance on the track. Say goodbye to complicated calculations and hello to more time racing and enjoying your hobby!

RC Drift Car Gear Ratio Calculator Glossary:

Gear Ratio

Our RC Drift Car Gear Ratio Calculator helps you figure out the best gear setup for your car. Imagine your RC car is like a bike with two gears: one gear (the pinion) is connected to the motor, and the other gear (the spur) gets driven by the pinion.

When people talk about the gear ratio of a car, they’re talking about how the spur gear and the pinion gear work together.

To find the gear ratio, you divide the number of teeth on the spur gear by the number of teeth on the pinion gear.

gear ratio = spur / pinion

Just so you know, the size or type of the gear teeth doesn’t change the gear ratio.

Tuning with gear ratio:

• If you use a bigger pinion or a smaller spur gear, your car will go faster, but it won’t be as strong when it starts moving. Also, the motor might get hotter and not last as long on a single charge or tank of fuel.
• Using a smaller pinion or a bigger spur gear means your car won’t go as fast, but it’ll be stronger when it starts to move. Plus, the motor stays cooler and runs more efficiently, giving you more playtime.

Internal Ratio

Calculating the internal ratio of a differential (diff) in an RC Drift Car involves understanding the gear setup inside the differential unit. Typically, the internal ratio refers to the gear ratio within the differential that transfers power from the motor to the wheels.

Here’s a step-by-step guide to calculating the internal ratio of a diff in an RC Drift Car:

1. Identify the Differential Assembly: Locate the differential unit within your RC Drift Car. It’s usually situated at the center of the chassis and connects the motor to the wheels.
2. Count Gear Teeth: Open up the differential assembly to access the gears inside. You’ll typically find multiple gears, including the ring gear (spur gear) and the pinion gear. Count the number of teeth on both the ring gear and the pinion gear.
3. Understand Gear Ratio: The internal ratio of the differential is determined by the ratio of teeth between the ring gear and the pinion gear. For example, if the ring gear has 60 teeth and the pinion gear has 15 teeth, the gear ratio would be 60:15, or 4:1.
4. Calculate Internal Ratio: Once you have the gear ratio, you can calculate the internal ratio by dividing the number of teeth on the ring gear by the number of teeth on the pinion gear. Using the example above, the internal ratio would be 60 (teeth on ring gear) divided by 15 (teeth on pinion gear), resulting in an internal ratio of 4.
5. Finalise the Calculation: Once you’ve determined the internal ratio, it’s ready to be used in other calculations, such as determining the final drive ratio or rollout.

By understanding the internal ratio of the differential, you can better optimize your RC Drift Car’s performance by adjusting other components like the pinion gear or tire diameter to achieve the desired speed and handling characteristics on the track.

Final Drive Ratio (FDR)

Let’s explore the world of RC Drift Cars through a different lens! Imagine your RC Drift Car as a sleek rocket ready for launch. The Final Drive Ratio (FDR) is like the fuel mixture in the rocket’s engines. It determines how much power your car has and how fast it can go.

Picture this: when the fuel mixture is rich (more fuel to air), the rocket blasts off with immense force but may not reach its maximum speed. On the other hand, when the mixture is lean (less fuel to air), the rocket zooms through the sky faster, but it sacrifices some initial power.

To calculate the FDR for your RC Drift Car, we need to understand two things: the internal gear ratio and the sizes of the gears (spur and pinion). Then, we can use this formula:

FDR = internal ratio * (spur gear teeth / pinion gear teeth)

Imagine watching a rocket launch, marveling at its speed and power. You want your RC Drift Car to navigate the track with the same precision and velocity. Well, you can achieve that by using the FDR of another skilled racer to determine which pinion gear to use on your car. Here’s how:

pinion gear teeth = (internal ratio * spur gear teeth) / FDR

By fine-tuning your RC Drift Car’s gearing using this calculator, you can unleash its potential and conquer the track like a rocket soaring through the sky. Get ready to drift with power and speed, just like a rocket on a mission to explore the stars!

Rollout

Understanding rollout is crucial for RC Drift Cars, especially when considering different tire diameters. Rollout is like the gear ratio but tailored to account for tire diameter variations.

Think of it this way: just like how different gear sizes affect a car’s performance, tire diameter also plays a big role. Larger tires, much like using a larger gear, give you more top speed but less acceleration. They also affect the car’s ride height.

To calculate rollout, which gives us a true measurement of the effective gear ratio, we use the formula:

rollout = tire circumference / FDR

A higher rollout number means the car moves farther for every turn of the motor, which is similar to having a lower gear ratio or using a larger gear. This knowledge helps us fine-tune our RC Drift Cars for optimal performance on the track.

RC Drift Car Gear Ratio Calculator Summary

So don’t wait, use our RC Drift Car Gear Ratio Calculator now to tune your car just right now.

If you’re on the Gold Coast, Brisbane or the Logan Area, come down and join us at the Track for some awesome RC Drifting!