5 Free Tips to Boost Your RC Car's Speed

5 Free Tips to Boost Your RC Car’s Speed

Remote-controlled cars, or RC cars, are not just a fun hobby for kids and adults alike – they’re also serious machines that can reach incredible speeds. Many enthusiasts love to modify their RC cars to get the most out of them, and there are numerous ways to do so. Of course, not all modifications require expensive parts or mechanical expertise. In fact, there are several ways to make an RC car faster without spending a penny. With a few simple adjustments and tweaks, you can improve the speed, handling, and overall performance of your RC car. In this article, we’ll explore some of the most effective and practical ways to make your RC car faster for free. Whether you’re a beginner or seasoned pro, these tips can help take your racing game to the next level.

Clean the Car

Keeping your RC car clean can make a big difference in its speed and performance. Dirt, dust, and debris can cause drag and friction, slowing it down. Here are a few tips to clean and maintain your RC car:

  • Use a soft-bristled brush to remove dirt and dust from the surfaces and crevices of the car.
  • Use compressed air to remove debris from small or hard-to-reach areas.
  • Use a damp cloth to wipe down the exterior of the car and wheels.

Check out websites such as RC Planet, AMain Hobbies, and Tower Hobbies for cleaning products and tools specifically designed for RC cars. Remember to clean your car regularly to keep it in top condition.

What is the best thing to clean RC cars with?

Looking for the best cleaning solution for your RC cars? Here are some options:

  • Water and soap: it’s an easy and cheap option that works well for general cleaning.
  • Rubbing alcohol: a great choice to clean up oily and greasy parts.
  • Windex or similar window cleaners: another great option for oily or greasy parts.
  • Specific RC car cleaners: there are several cleaners on the market specifically designed for RC cars, such as the popular Maxima Racing Oils RC Foam Filter Cleaner.

Make sure to clean your car after every use to ensure longevity and optimal performance.

For more information and product recommendations, check out RC car forums and websites such as RCGroups.com or AMainHobbies.com.

Adjust Gear Ratio

The gear ratio of an RC car determines how fast it can go. Changing the gear ratio can increase the speed of your car. Here are some steps to help adjust your gear ratio:

Step Description
Step 1 Identify the pinion gear and the spur gear. These are the two gears that determine the gear ratio of your car.
Step 2 Remove the motor cover and loosen the screws holding the pinion gear in place.
Step 3 Adjust the pinion gear by moving it closer or farther away from the spur gear. Moving the pinion gear closer will increase the gear ratio, resulting in faster speed.
Step 4 Tighten the screws to hold the pinion gear in place, and reattach the motor cover.

It’s important to note that changing the gear ratio can affect the torque and acceleration of the car. Check out websites such as Amazon, HobbyTown, and RC Superstore for gear ratio options and tools. Remember that gradual adjustments are key to safely increasing your RC car’s speed.

How do I increase my gear ratio on my car?

Increasing the gear ratio of your car can help improve acceleration and overall performance. Here’s how to do it:

  1. Install larger tires: Larger tires have a greater diameter which increases the gear ratio.
  2. Upgrade the differential: Installing a high-performance differential can increase the gear ratio.
  3. Change the gears: Replacing the gears in the transmission or rear-end can also increase the gear ratio.

Note that changing the gear ratio can affect fuel efficiency and may require other modifications to maintain the overall performance of your car. Consult with a professional mechanic for guidance.

You can check out websites like Summit Racing, Jegs or CARiD for products that can help you increase your gear ratio.

Trim the Body

The body of an RC car can create a lot of drag, slowing down the speed. Trimming the body can increase aerodynamics and lead to a faster car. Here are some tips for trimming the body:

  • Use a sharp pair of scissors or a hobby knife to remove excess material from the body.
  • Trim around the wheel wells, the front, and side panels.
  • Trim the windshields and windows for less air resistance.
  • Aim to remove material that doesn’t affect the body’s structural integrity.
  • Be careful not to over-trim as this can cause the body to lose its strength and shape.

Some bodies are specifically designed with aerodynamics in mind, so it may be worth looking into purchasing a more efficient body for your RC car. Check out websites like AMain Hobbies, Tower Hobbies, and Horizon Hobby for body options. Keep in mind that trimming or changing the body can affect the handling and stability of the car, so be sure to make adjustments gradually and carefully.

How are RC car bodies measured?

RC car bodies are measured with precision tools to ensure an accurate fit on the chassis. The following measurements are commonly used:

  • Length: measured from the front to the rear bumper
  • Width: measured from the widest point of the car body
  • Height: measured from the bottom of the car body to the highest point
  • Wheelbase: measured from the center of the front wheels to the center of the rear wheels

It is important to note that different brands and models of RC cars may have varying body measurements. Always refer to the specific manufacturer’s specifications when purchasing a new car body.

For a wide selection of RC car bodies, check out websites such as Amain Hobbies, Tower Hobbies or HobbyTown.

Check Tires

The tires of an RC car are crucial for its speed and handling. Here are some tips for optimizing the tires’ performance:

  • Ensure the tires have the proper air pressure. Consult your car manual or the tire’s packaging for the recommended air pressure.
  • Check the tire’s tread. Worn-out or damaged tires will affect the car’s performance and safety.
  • Consider using tires that are specifically designed for speed or racing.
  • Clean the tires regularly to remove dirt and debris that may affect their grip.
  • Use tire additive to improve traction on the track or pavement.

If you’re looking for specialized or performance tires, check websites like RC Planet or AMain Hobbies for options. Some RC car manufacturers also offer specific tires for their models. Remember to consider the tire’s size, compound, and tread pattern when purchasing. An optimized set of tires can greatly improve the speed of an RC car.

How to choose RC tires?

When it comes to remote control vehicles, choosing the right tires is crucial for optimal performance. Here are some tips to keep in mind:

  • Consider the terrain – Different types of RC tires are designed for different terrain such as dirt, gravel, sand, or pavement. Choose the appropriate tires for the terrain you will be driving on.
  • Size matters – Make sure you choose the right size tires for your RC vehicle. Check the manufacturer’s recommendations if you’re unsure.
  • Tread pattern – The tread pattern on a tire determines how it grips the surface. Look for tread patterns that are suitable for the type of terrain you’ll be driving on.
  • Brand and quality – Choose reputable brands with a proven track record for quality and performance. Cheap tires may be tempting, but can often wear out quickly or not perform well.

If you’re unsure about which RC tires to choose, many hobbyist websites offer forums and reviews where you can ask for advice or get recommendations from experts in the field. Check out sites such as RC Universe or RC Driver for more information.

Adjust Suspension

The suspension system of an RC car affects its handling and speed. Here are some tips for adjusting the suspension:

  • Ensure the suspension system is properly assembled and lubricated.
  • To increase speed, tighten the suspension system by shortening the shocks or springs.
  • To improve handling, loosen the suspension system by lengthening the shocks or springs.
  • It’s important to make adjustments gradually and test each change on the track or pavement.
  • Consider upgrading to aluminum shocks for a firmer suspension.

If you’re new to adjusting an RC car’s suspension, consult the car manual or look for online tutorials for your specific model. XRAY and Team Losi are websites that offer upgrade options for an RC car’s suspension. Remember that any changes to the suspension system can greatly affect the car’s performance, so be sure to test and make adjustments carefully.

How can I make my suspension tighter?

To make your suspension tighter, you can follow these steps:

  • Adjust the preload: tightening the preload will make the suspension stiffer. Usually, you can do this by using a spanner to rotate the adjuster on the top of the shock absorber or fork
  • Adjust the compression damping: this controls the rate at which the suspension compresses. To make it stiffer, turn the adjuster clockwise
  • Adjust the rebound damping: this controls the rate at which the suspension extends after compressing. To make it stiffer, turn the adjuster clockwise

Note that some motorcycles or cars have electronic suspension, which allows you to adjust the stiffness on-the-fly. Check your owner’s manual to see if this is an option for you.

If you are unsure about adjusting your suspension, consider taking it to a professional mechanic or suspension specialist who can help you achieve a tighter suspension setup.


There are many ways to make an RC car faster without spending money. By cleaning the car, adjusting the gear ratio, trimming the body, checking tires, and adjusting the suspension, you can greatly improve your car’s performance. Simple modifications can make a big difference without requiring any costly upgrades – although it’s worth noting that investing in better quality parts and modifications can also help improve speed and handling.

Before making any adjustments, it’s important to carefully study the car manual or consult online tutorials for guidance, especially if you’re new to the world of RC cars. Take time to test each adjustment and note the difference in performance. By experimenting with these tips, you can customize your RC car to your liking and take your racing hobby to the next level.

Remember that safety should always come first. Be sure to wear protective gear and find a safe place to race your RC car. Have fun and enjoy the ride!