It's really pretty simple to run a fresh, cool air snorkel up the
D-pillar.   I stuck a fish-wire down after removing the grill off the vent
behind the slider.   I got some heater duct, maybe it was brake duct...
hose, flexible with an incorporated spiral wire to keep it open...and
simply hose-clamped that right on the intake horn of the Vanagon air
cleaner, then ran that duct, with the help of the fish wire, right up
through the D pillar to the vent grill...I put a 180 turn in the duct at
the top, so it makes a "U" and points down again at it's open end ...wired
that onto the back of the vent grill and done...Total cost maybe $15
bucks...I think it keeps the intake air cleaner as well...since the engine
in my van gets really pretty dusty when I am driving on dirt a lot...

On Sat, Apr 13, 2013 at 6:59 PM, JRodgers <jrodgers113@gmail.com> wrote:

> Colder air = more dense air which in turn requires more fuel for a
> stoichemtric burn = greater energy release = more power on the power
> stroke. Makes sense. A super-charger - turbo or otherwise - does the same
> thing except even more dense air needing more fuel , etc, etc, etc. But
> anything one can do to increase air density always helps the power
> situation. Cooling the burn helps too if applied at the right time. Certain
> internally supercharged WW II aircraft engines in fighters has water
> injection that was use to produce "military power" in the engine in the
> case of emergency. Full throttle with a supercharged engine would blow the
> thing up but the water cooled it enough to save the engine but still get
> the power. Saved a lot of fighter pilots butts during WW II.
>
> John
>
>
>
> On 4/13/2013 11:54 AM, Don Hanson wrote:
>
>> All accepted wisdom says a colder intake air charge improves combustion
>> and increases power...
>>
>