Follow these techniques and you are going to improve your lap times dramatically. I use it and it helped me to improve my lap time by 2 seconds on a 52 seconds lap

To get faster on a go kart track it’s helpful if you can learn from every lap you do on a track. I have found a nice setup to record my split times

Get your race data logger and work on your lap times like professional race drivers. Analyze your split times and compare throttle position and corner speed to maximize your time on the throttle.