REFLECTOR: Prudhomme Alternate Air
doug.holub at tx.rr.com
doug.holub at tx.rr.com
Sun Jul 20 20:26:35 CDT 2008
The other advantage is that even the alternate air would be filtered.
---- KMis178813 at aol.com wrote:
> Andy
> I just got done working with one of Prudhomme's setup. I had the same
> conclusion BUT when looking inside the filter housing it all became clear. He
> places walls on both sides of the alternate air door all the way to the filter.
> In doing so the normal induction air can not go through the part of the air
> filter that is saved for alternate air source only. It actually looks like it
> worked, according to the dirt in the filter. A plus for this setup is that
> when you need alternate air because of ice, the air would be pulled from the
> warm engine compartment.
> Ken Mishler
>
>
> In a message dated 7/20/2008 12:57:42 P.M. Eastern Daylight Time,
> amillin at sbcglobal.net writes:
>
> I have been looking at the pictures of Jean Prudhomme's setup. It is pretty
> impressive.
>
> Thanks for the link Doug!
>
> http://www.tvbf.org/gallery/?dir=engines%2Fplenum_jean_prudhomme
>
> I have a question (of course)
>
> My understanding of Alernate Air is that it provides the engine with air
> should the filter become clogged with ice, snow or other debris.
>
> If this is the reason for having it, then it makes sense to me that the
> alternate air port must be AFTER the filter. Prudhomme's alternate is on
> the same side of the filter as the primary intake. If the alternate air is
> on the same side as the intake air, wouldn't it be as useless as the
> original intake? Filter is clogged, the engine can't pull from Prudhomme's
> alternate any more than from the primary...
>
> Andy
>
>
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