Anyone ever had an issue with loosing coolant out of the overflow?

Every time I go out drifting, or grip running the car will push all of the water out of the radiator. I block tested it, no o2 in the coolant. Did a radiator leak test, no leaks also tested the cap and it holds 17 psi (1.3bar nismo cap.)

I really want to figure out what the hell is going on, I want to drive my car without a scare of over heating.