"Rain was a pourin' up under my hood... I knew that was doin' my  motor
good."  Now, let's all sing together.  "Mabeline, why can't cha be true?"
----------------------
My super duper vent extensions on my 83 Air Cooled Vanagon sucked in
enough rain water to ruin my alternator.
I never got to prove if they were any good for better cooling.

Stan

On Fri, 28 Jun 2002 11:42:51 -0700 Bill N <freeholder@STARBAND.NET>
writes:
> Under most conditions the opposite will be true.  Air with a lot of
> water vapor in it is a bit
> more dense, increasing its ability to transfer heat.  This effect
> will be minimal on engine
> cooling, however, with temp being the important consideration.  Temp
> is important both because
> obviously hotter air won't cool as much and because hotter air is
> less dense, and less dense
> air also won't cool as much.  On the other hand, more water vapor
> (or actual water) will have a
> BIG effect on performance, as Stan has pointed out.  Remember the
> old 50s song "Mabelline"?
> "Rain was a pourin' up under my hood... I knew that was doin' my
> motor good."  Now, let's all
> sing together.  "Mabeline, why can't cha be true?"
>
> Bill
>
> ----- Original Message -----
> From: "Vanagon man" <vgonman@msn.com>
>
> >
> > I thought that when water is added to air, it changes its
> properties, and
> > thus cooling capacities.what i thought (from some long ago fluid
> dynamics
> > class) is that when water is in air and it is forced thru our air
> cooled
> > engines, it will not collect and move the heat from our engines as
> well as
> > dry air...................
>

________________________________________________________________
GET INTERNET ACCESS FROM JUNO!
Juno offers FREE or PREMIUM Internet access for less!
Join Juno today!  For your FREE software, visit:
http://dl.www.juno.com/get/web/.