Water cup is for normal driving. You can’t use it for serious drives and practice runs. This is where a G meter comes in.
This is one of the oldest and simplest G meter. However you can’t use this for dry sump systems. This works best with conventional wet sumps.
Normally a car uses an oil pan to circulate the oil throughout the engine. It is a gravity fed system use to pump oil through the engine. During high speed cornering a car will flip, sway and swirl. The red water on the dash demonstrates the effects of G forces as the car corners. Water move to left and right which is an indication of the side forces of lateral accelerations the car generate. If you corner hard left the water will start to move right. And if you corner hard right the water will start to move left. The same thing would be happening to oil in a conventional oil pan. Oil would also be forced to the side of an oil pan making it impossible to be move up to the engine during the sustain period of cornering. So the G forces will starve the engine of oil and it’d break down from the heat.
But now with the G meter you can know what should be your speed and margin. You can use this to practise the course and making pacenotes. And to prepare strategies.
Water cup is your first step. This is the next step. These things will help you to learn. Understand the car and physics. And improve your techniques. All the knowledge & experience you gain will contribute to your future growth.
Thank you.