No meth tune for me. That's the reason for staying with the 93 octane tune that I already have and adjusting the water/meth/alcohol mixture. I got a recent retune that was supposed to richen .5 across the board. I'll verify the retune before testing the water injection. To be on the safe side I'm running with 100 or 104 in the tank at the track. It's expensive gas but cheap insurance. The controller has a light that's on when it's spraying and I plan on figuring out how to set an AFR alarm sound with the Zietronix Dasdaq combo.

Les