Mitsubishi: Cooling system, mitsubishi 3000gt, straight water

Question
1994 mitsubishi 3000gt, 3.0L twin turbo
I have a simple question but i drained coolant filled up with water and one blootle of flush solution. THen i drove it a while drained that and washed all of it out with water. Then i filled it entirely with water in order to just park it overnight (65 degrees outside low temp)

my question is it okay to just run 100% water for a day or to until i get coolant to mix 50/50?

Answer
Absolutely Larry. But remember that anti freezing and boil over are only part of what anti freeze does. The other is lubricating the water pump and anti rust! You want to change it as soon as you can, but I don't see a problem with running straight water for a few days. If you wait too long though...