agree with joey, but after that is done:
I prefer both sides have the exact same amount of steering so,
I put the car on the ground with tires, not running but turned on
using the transmitter turn wheels full left and push the car slow for a half circle marking your start and end points on the ground (where outside front tire touchs the ground)
then put the car on the left of circle you just marked and repeat turning the car right
adjust the end point of the smaller circle to match the side with the larger circle so they are even
now your car will be consistent!