Interesting point, The Porsche 928 looks to me like
its bumper directs alot of the windflow underneath the
car, much like our high riding westys/syncros do.
Underneath most cars, its not smooth and wind
resistance will be greater the higher up your car
rides. So, i think Installing lower coils along with a
quick release spoiler under the bumper......(a big
one.....for long trips only) would be the way to go.
But if i lower my westy i wont get that nice floaty
ride that i love so much.

-Phil 84' Westy Tiico'ed

--- John Reddick <svyolo@YAHOO.COM> wrote:

> I saw some pics from a wind tunnel test on Vanagons.
>  The stock passenger
> van is .44, the US spec Westy is .50.  I am
> currently driving a Westy with a
> modified "aero" front end for the Westy top.  It is
> getting better mileage,
> but due to adverse traffic/winds, I could nail down
> good numbers.  It is
> definitely getting somewhere between 5-10% better
> mpg.
>    The Porsche 928 is a horrible example of
> aerodynamics, despite its sleek
> look.  Its Cd was similar to a Vanagons when it
> first came out, but I
> believe they tweeked it in the mid 80's so it was
> mid/low .30s.
>     Westy's sold in Europe had a bunch of variants
> on the top design.  One
> common one was the same rear as the US model, but a
> sleeker front.  That is
> basically what I built for the front of my Westy,
> although the first one is
> far from beautiful.
>
>     John
>

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