Posted by zane
on 9/25/2003, 4:58 pm, in reply to "Re: Water/meth injection"
12.94.32.232
The tweeking you speak of would be necessary in order to benefit from the use of water/meth injection in the first place. As for limitations, I would say pressure, quantity and then tolerance would be in order. The whole point here is to build an engine without the concept of water injection yet use the concept of water injection if you so desire, like a safe guard. If, on the other hand, it is used because the turbine a/r is too small and the exhaust egt is so high, without an intercooler, then this is a foul approach to cover up bad tuning/bad design. Without a doubt, though, it does work at the criticle points of power delivery. If the heat is right and the pressure is good, then the mist of the water mixture does lower the charge temp by a large margin. There is no set rule for engines; each engine will react differently. I would say that if detonation is a problem for you at a certain boost level, then try out the water injection and see what happens. But I would suggest, also, to look into other areas first, just to be on the safe side.
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