how bout 2 injectors for each cylinder? one for water one for fuel and they just swap back and forth for every cycle? or just add a set amount of water in every cycle.
but then again that would be 2X the fuel tanks, lines, pumps etc.
it would let you run a more advanced timing and high compression and still use low octane fuel. or on some cars lower the oem requirement of high octane fuels
maybe even lean the mixture and still be safe.
it would deff need quite a few hrs on a dyno to perfect though
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