How to make a RC Car faster?

An RC car can provide hours of fun just as it comes in the box; however, its speed sometimes leaves a lot to be desired. Luckily, it only takes a couple of adjustments to make it more interesting. By installing a powerful lithium battery to replace the standard one it comes with, you can boost the voltage going to the wheels and make the car go like a rocket.

Other modifications, such as shifting the gears of the engine, improving the wheels and removing excess weight from the chassis, can also have a great impact on the acceleration and top speed of the car.

#Method 1: Replace motor

One: Invest in a brushless electric motor. Brushless motors are rated by wire turns (Turns) and have fewer than the brush motors that remote-controlled cars typically come with. This allows them to go much faster and be more efficient. You can buy brushless electric motors at places that sell RC cars and accessories.

If you don't have electronic components store nearby, look for specialized online suppliers.
Brushless electric motors are also classified by "revolutions per volt" (Kv); the greater the number, the greater the speed given by the motor

Two: Open the RC car. Loosen the screws on the plate that covers the bottom of the car, remove the plate and set it aside. Now you have access to the internal mechanisms of the car.

Place the screws in a plate or a small bag to avoid losing them.
The most expensive models usually have open designs that allow each mechanical part of the car to be seen. In this type of car, you may only need to remove the small cover that encapsulates the engine.

Three: Find the engine. In most new RC cars, the engine is a cylindrical part at the rear of the chassis. It is connected by various colored cables to the speed control unit (ESC) used to control the car.

Examine the internal structure of the car carefully to put each piece in the correct order when reassembling it.
Some cheap models have two engines, one that spins the wheels left and right, and a larger one at the rear that powers the car. These types of motors are not made to be modified and it may not be possible to change them.

Four: Disconnect the motor from the mount. Press the connectors at the end of the colored wires connected to the motor to release them. Disconnect the connectors carefully and finally subtract the motor from one piece.

Keep the old engine for now. Keep it in reserve in case there is a problem with the new one.

Five: Insert the new motor. Put the upgraded motor where the original was, check that all cables and connectors are properly aligned and oriented. Push the connectors into their ports until you hear a click.

The power cables are color-coded, so be sure to connect each cable with the port of the same color.
If the model you purchased has two motors for more complex controls, be sure to replace both so they are even in torque.

#Method 2: Install a higher capacity battery

One: Buy a powerful battery. No matter how improved your RC car is, it can only go faster with a battery that's up to par. If you really want to bite the dust off the competition, go for a higher voltage battery, such as a nickel-iron hybrid (NiMH) battery or a lithium-ion polymer battery pack (Li-Po).

RC cars are known to reach speeds of up to 100 mph (160 km / h) with improved batteries. You can also add 24 to 32 km / h (15 to 20 mph) to your car's top speed just by improving the battery, even if you don't modify anything else.
To make sure the battery fits, measure the battery compartment of your car and find one of the appropriate sizes.

Two: Make sure your engine can handle the extra power. When working with powerful batteries, a small improvement will make a big difference. Be moderate at first: If the car comes equipped with a one-cell battery, upgrade it to a 2 or 3-cell battery. You can make bigger voltage jumps from it, as long as you see that your motor can handle every upgrade.

If the car becomes unusually hot after a session, it may mean that the new battery is putting too much strain on the engine. In this case, it is safest to opt for a slightly less powerful one, since you will not be able to use the extra power anyway.
Using an overly powerful battery in a car can cause irreparable damage to the engine and electronic controller.

Three: Remove the current battery. Press the connectors at the end of the cables and remove them from the ports. Take out the battery and set it aside. You can keep it as a reserve or discard it to save space for better batteries.

If you decide to keep your old battery, test both batteries to see the before and after. You will probably be amazed at the difference that the powerful battery makes.

Be sure to take your old batteries to an appropriate deposit or recycling center when disposing of them. Never throw away rechargeable batteries with ordinary trash.

Four: Put in the new battery. Insert the battery carefully, matching the wires according to color. Slide the connectors into the ports until a click sounds. Replace the battery cover, if your model has one, and finally start the car and take it for a spin.

Test the fit of the battery to ensure there are no loose connections or unnecessary movement of the battery.

Five: Recharge your battery regularly. It is important to be systematic when recharging the cells of your new battery to keep it in optimal condition. After a few hours of use, connect the battery to its charger to restore some power. It is also a good idea to recharge batteries that have been exposed to the cold or have been unused for a long time.

Make sure your radio controlled car battery is fully charged before a practice session or competition.
If possible, get an extra battery or two to always have a spare on hand.

#Method 3: Make other small adjustments

One: Alter the gear ratio. Inside the car you will find two interlocking gears, one small metal pinion type and one larger plastic spur type. Separate the gears and remove them to make room for their replacements. Since speed is your goal, you will get the best results with a large pinion gear (with a larger number of teeth) and a slightly smaller spur type (with fewer teeth).

If you are more interested in improving the acceleration of the car before its top speed, use a smaller pinion gear and a larger spur type. You will be sacrificing a bit of speed; but you will make it more precise when cornering and reduce overheating.
Changing the size of the gears is one of the cheapest and simplest ways to make your car go faster.

Two: Replace cheap bearings with ball bearings. Unscrew the bolts that hold the wheels and slide them off their axles. Remove the washers from the end of the shafts, then use a star screwdriver to open the housing around the transmission to free the bearings from inside. Insert the four high-quality ball bearings and re-position the transmission just like the shaft.

Most consumer-controlled RC cars come with cheap cap clamps. These bearings are not designed for high performance and can slow your car down dramatically.
Ball bearings are able to rotate more freely than bearings. This eliminates friction, which reduces engine effort and increases battery life.

Three: Change the wheels. When removing the wheels, consider replacing them with better ones. Choose wheels with a surface suitable for the style of competition you prefer. In this way, you can be sure that they will withstand the most demanding conditions and achieve the highest speed offered by the other components of the car.

The tipped ones offer better traction on uneven surfaces such as mud and wet grass.
Wheels with small pins work well on carpets, grass and other uneven surfaces.
Smooth, smooth wheels are best for hard, even surfaces like paved roads.
If you are looking for ones that work well on all surfaces, try small ones. They have a good balance between speed, grip, and maneuverability.

Change the wheels. When removing the wheels, consider replacing them with better ones. Choose wheels with a surface suitable for the style of competition you prefer. In this way, you can be sure that they will withstand the most demanding conditions and achieve the highest speed offered by the other components of the car.

The tipped ones offer better traction on uneven surfaces such as mud and wet grass.
Wheels with small pins work well on carpets, grass and other uneven surfaces.
Smooth, smooth wheels are best for hard, even surfaces like paved roads.
If you are looking for ones that work well on all surfaces, try small ones. They have a good balance between speed, grip and maneuverability.

Four: Remove excess weight. Consider swapping your radio-controlled car casing for a lighter one made of aluminum or graphite. These materials will reduce pressure on the wheels, which means they won't slow down the car as much as the dense plastic and heavy metal parts. Keep in mind that the lighter the car, the less traction it will have when changing directions.

If you're proficient with the grinder, use it to cut out unnecessary plastic parts, like the bulging area around the battery connector or speed controller tray.
Trimming part of the front area of the car can help make it more aerodynamic (it also makes it less likely to roll over when braking at high speeds).

Author Description

RC Billow