Re: [Amc-list] Re; Interesting Water Injection for DIY (Carbureted)

[Tom Jennings <tomj@xxxxxxx>]

Water injection increases thermal efficiency; the heat that would go out the 
tailpipe is used to heat the water to steam which increases cylinder pressure 
etc. It has nice anti-detonation features too. 

If I recall correctly it was big in WWII aircraft, but combustion science and 
turbocharging mainly did it in; turbochargers turn "waste" exhaust heat 
energy into intake air which is a huge help at high altitudes obviously.

ALso water injection was big back in the days when ignition timing was not 
very well controlled, usually retarded, and compressions were really low. I 
would suspect that today, short of well-timed direct cylinder water 
injection, that a lot of ignition timing work would do better than the 
water -- on a modern (1960's+) motor.
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