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Water/Meth and Stoich

Posted: Thu May 09, 2013 5:04 pm
by 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?

Re: Water/Meth and Stoich

Posted: Thu May 09, 2013 5:20 pm
by 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.

Re: Water/Meth and Stoich

Posted: Thu May 09, 2013 8:03 pm
by 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.?

Re: Water/Meth and Stoich

Posted: Thu May 09, 2013 8:58 pm
by 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?

Re: Water/Meth and Stoich

Posted: Fri May 10, 2013 11:05 am
by 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.

Re: Water/Meth and Stoich

Posted: Fri May 10, 2013 11:25 am
by 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?

Re: Water/Meth and Stoich

Posted: Fri May 10, 2013 11:34 am
by mikel
you got a wideband?

Re: Water/Meth and Stoich

Posted: Fri May 10, 2013 3:55 pm
by maine54
Yeah, I have A wideband fail-safe, water/meth fail-safe, and tru-boost safe guage, plus your T-1000