Pre Turbo Injection - How Much and When to Inject

[PuntoRex]

I had the similar experiences about the trigger point.

Currently I use 1*0.5 at pre-turbo & 1* 0.6 at pre-TB, triggered at 10psi, max boost around 18~20psi.

I can be sure that the turbo spools up much more quickly in the 10~20psi region than the 0~10psi. Probably, that's the work done by water.

Which stops me make it earlier is the worse atomization in the low DC injection. I'm a little worrying about the larger droplets caused by this, especially pre-turbo.