[teoman]

Physics of it is working against us in this frontier. Whereas in others it is an advantage.


How about a heat pipe, from exhaust to a point in the air itake tract. It will be at exhaust temp, when you spray water on to it, it will instantly vaporize.



Or a pipe going all the way down to the exhaust, with the exhaust side sealed but touching the exhaust. You shoot water down, steam squits out. (This will have more delay). A y pipe closer to exhaust with injector attached could minimise the delay. Once you vaporise the water, it will be at 100 deg C plus. (Not exhaust temp) so during its journey to the engine it will not lose energy.