Question: how do you make a rc car go faster?
Answer: Adjust the Gear Ratio. One of the cheapest and easiest ways to increase the speed of your RC is by adjusting the gear ratio. ... 
Change Your Tires. Using the wrong tires for the surface you are driving on will almost certainly slow down your vehicle. ... 
Reduce the Weight. ... 
Upgrade Your Motor. ... 
Upgrade the Batteries. ... 
Practise!