Quote:
Originally Posted by oil pan 4
Don't care about the 1960s. Nothing internal combustion made then would come any where near being able to be sold today.
BMW appears to be using it to increase super charged performance.
The botch one doesn't say if it's for gas or diesel. Those stats, 5% more power, 4% less co2, 13% more fuel economy sounds exactly like running water injection on a diesel.
The only way a gas engine can benefit from water for fuel economy is if it was designed around it. Then the problem is you have to use water all the time and better make sure you run out of gas before you run out of water.
Still have to get it passed the epa.
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IIRC the BMW has a limp mode if it runs out of water so you can't hurt the engine. But it will affect power. And yes, the (gasoline) engine has to be designed to take advantage of water injection. Otherwise it's very likely to not work, although I do wonder about replacing some gasoline enrichment with water at WOT. That would be a good way to blow up an engine if something fails of course.