Water/Meth on a non-tuneable ECU

[Xisthos]

Hello,

I have an Audi B7 with a 1.8T running on a APR Stage 3+ setup (550 injectors, GT2860RS turbo, etc), FMIC, full exhaust, among other things.

Now I am looking at w/m to bump up my horsepower, but APR locked the ECU and prevents any changes to the timing, fueling, and other factors.

I am running a 93 octane file while the best fuel that is available to me is 97(RON) V-Power.

It is also very hot and humid where I live, about 95-100deg F with a humidity of about 60-70% all the time.

WITHOUT a tuneable ECU, it is worth it for me to still go w/m?

I was thinking that because I am not running 93 octane (97 RON = 92 AKI), and because it is so hot here my ECU probably pulls timing a little, I was guessing that in this case a w/m setup even without bumping timing would benefit me.

Your thoughts would be appreciated