Quote:
Originally Posted by teoman
I had the idea that the EGR valve might be a good place to inject the steam.
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IIRC in spark-ignited engines the EGR is actually more functional than in Diesel engines, since it allows a small part of the crude hydrocarbons usually released along the exhaust stream to recirculate. But presumably if you can make it run leaner enough to decrease the HC emissions to a minimum the EGR valve seems to be a good spot to inject the steam, since the it would be able to provide a cooling effect to the pistons in a way similar to what a richer mixture would.