what ever happened to water injection??

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JCH13

Diamond Member
Sep 14, 2010
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just throwing it out there as you kind of called me out about the mileage....

and from my limited knowledge... after all, I am just a polish farmer.... most target WOT AFRs are in the low to mid 11's (11.3 - 11.5) so I would say if you are in the 12's, you are running a bit lean, and on the opposite side, if you dip into the 10's, a bit rich. tons of other other factors to consider, but just generalizing.

I didn't mean to call you out, I was simply being skeptical. I just wanted to understand what the heck is going on if you're seeing less than a 15% hit fuel economy with a fuel that requires 30-50% more volume to get the same energy out.

Like exdeath says, 9s and 10s in the AFRs are margins for safety, not great for power, and there is a heck of a difference between 10:1 and mid-11s. Maybe there are big differences in your spark map too that contribute to difference in fuel consumption.