"Beav" <beavis.original@ntloxoworld.com> wrote in message
news:lxneb.375905$Ji7.4105899@news.easynews.com...
>
> "Philip Martin" <philip.martin1@btinternet.com> wrote in message
> news:blafbo$9587j$1@ID-129488.news.uni-berlin.de...
> >
> > "MR LESLIE ROGERS" <LESLIEROGERS@nospammembers.v21.co.uk> wrote in
message
> > news:3f78a3df$1@news.greennet.net...
> > > yes you are right, the air will be denser, so fuel to air ratio is
> better
> > >
> > > i.e more co2 can get to the fuel to give a better burn rate, same as
in
> a
> > > car engine
> > >
> > > hope this helps
> > > "POP_Server=pop.clara.net" <paulherbert@clara.co.uk> wrote in message
> > > news:1064857650.38960.0@dyke.uk.clara.net...
> > > > On flying in the back field tonight at around 6pm the air was cold
and
> > > damp,
> > > > would this cause the performance of the engine to alter? The reason
I
> > say
> > > > this is that the engine has never responded so well before and the
> > weather
> > > > is the only thing I can put it down to.
> > > >
> > Air contains c20% O2 and c80% Nitrogen, but cold air is denser than warm
> > air, so there's more of it (in weight) per C.C. But now if its damp,
that
> is
> > the relative humidity of the air is high, there's more water in it, so
the
> > difference in O2 levels between hot dry air and damp cold air can be
> > relatively small. However when this cold wet air enters the engine the
> > molecules of water attract the molecules of fuel and thus you get a
better
> > distribution of the fuel ( a better mixture of fuel and air). This means
> > that when its time to go BANG it goes BANG better:o)
> >
> > They've tried this before with car engines, adding a water injection
point
> > on the manifold and the performance improves as does the fuel economy.
> Only
> > trouble is it rusts and buggers the engines:o(
>
> I've seen 'em rusted Phil, but I've never seen one buggered. Only a small
> bloke could manage that successfully, but why he'd try is anyone's guess
:-)
>
>
Ohh I dunno, depends on the height of the jacks and the size of the
exhaust;o)
Phil Martin.
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