<snip>
. Note!! they said enclosed, not airtight, the volume of our engine
compartments is apx the same as the average watercraft and they ain't
airtight.
<snip>

Ummm, the engine compartment of a Vanagon is not even close to "enclosed."
The big hole at the bottom of the compartment would probably negate the
desired effects.  Boat engine compartments are enclosed to the point where
no outside light can get in them, a Vanagon/Type2 engine compartment ain't
even close.

Michael B. Harrnacker
89 Weekender "Nameles"
91 Golf "Miami"
looking for a 1995 Audi S6 Avant
http://ruralinstitute.umt.edu/vwbus
vwbus@usa.net