Water/Meth and Stoich

[maine54]

Hi guys, if I am running water/meth at boost or an RPM Range, what if anything should I do to the fuel enrichment setting?

[Mike_Levy]

You're really gonna need a custom tune with CMR to take care of that. Can't safely do it with the handheld.

[maine54]

Thanks Mike (you were nice for once, lol) Why is that? I have ^graded injectors, rear mount/intercooled turbo, and progressive controller.....why a custom tune? Any other ways around, like knowing fuel/afr table numbers to the decimal, equipment, etc.?

[Mike_Levy]

Because with forced induction its always a good idea to have a custom tune done. I don't know how you're running bigger injectors without one?

[mikel]

removing fuel because you are adding meth is SCARY to me, since when the meth runs out, you go lean and blow up instantly.

[maine54]

Haha Mike I am with you on that but I have fail safe systems that adjust timing if that happens or scrams boost. My larger injecters arnt in yet as my car is not under boost because of no custom tuning. Tank and turbo, plus everything else is in place though. So I could subtract fuel, add meth and stay in the 12's under boost?

[mikel]

you got a wideband?

[maine54]

Yeah, I have A wideband fail-safe, water/meth fail-safe, and tru-boost safe guage, plus your T-1000