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

[JOE FULTON <piper_pa20@xxxxxxxxxxx>]

--- Tom Jennings <tomj@xxxxxxx> wrote:

 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. 
> 

Reciprocating aircraft engines typically have (had)
magneto ignitions and timing was fixed.  That could
have been part of the reason water injection was used.

Joe Fulton


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