Quote:
Originally Posted by oil pan 4
The biggest problem with water injection I see is winter, freezing the water and during cold start.
Grill shutters, intercooler bypass and EGR could get the engine up to temp pretty quick.
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Modern materials can handle freeze/expansion cycles of water, the trouble would be the time it takes for the water to heat, since you wouldn't have pollution control during that time or be in limp mode.