water turn on boost point for base system

[Sato]

Originally Posted by PuntoRex

My experience with 1s is it'd be better start injecting water at about 50%~60% of full boost, or even sooner. Since the pressure from the pump would not go to the top instantly. Trigger it sooner will let it deal with coming high boost better.

The effect is very obvious especially at the urgent upshift slam as you mentioned.

Or maybe your ignition is too aggressive or lean out or both....

I tried having my WI turn on at around 8 psi and a problems have stopped.
Thanks!