On Thursday 02 August 2007 07:49:40 Don Johnson wrote: > Tom, I think you're off a little in your explanation of the use of water > injection. Water injection is used in aircraft to slow the onset of > detonation at high boost and power settings. Steam will not increase > cylinder pressures over what is obtained by burning gasoline, especially at > high boosts. I don't recall my source so I'll defer to you here. Somewhere though I recall a discussion of handling wasted heat -- since producing heat to increase gas pressure of course is all the burning gasoline is good for! -- but I could have the scale of things off, for starters, or just be plain old wrong (nahh, that never happens :-) Was W.I. used WITH turbo/supercharging then? > Water injection slows the burning and avoids detonation which > allows more power to be derived from the engines during emergency > conditions. I believe water injection was either selected or came in > automatically at boost above a certain number of inches of manifold > pressure. For suppressing detonation the amount and timing would be pretty critical. I bet all that aircraft stuff is well-documented somewhere, especially the old stuff. Would be some interesting reading. Some good things DO get lost! _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list