A 10wt% methanol in water reduces the surface tension of water 25%! The effect tapers off as the methanol content increases
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Originally Posted by JohnA
Shame you didn't do any tests with lower methanol content, say 10-15%
In my experience the 'methanol effect' is not linear, even a small percentage has a disproportionate effect in power, then it tails off.
I suspect that it might be also helping the water and the fuel atomise better, sort of what some people claim for acetone.
As for the AFRs, you really have to go into the 12s for these setups to shine.
I've found that running richer than 11:1 actually LOSES you power when you use water injection.
It's all-or-nothing :lol:
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