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Date:         Thu, 13 Jul 2000 07:55:30 -0700
Reply-To:     Karl Wolz <wolzphoto@worldnet.att.net>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Karl Wolz <wolzphoto@worldnet.att.net>
Subject:      Re: Weep No More For Me
Comments: To: Frank Miller <fmiller01@sprynet.com>

These effects can be eliminated by installing a Combex reciprocating pump. I believe that they can be ordered through JC Whitney. If I'm not mistaken, they advertise a 15 - 20% increase in fuel economy.

Karl Wolz

----- Original Message ----- From: "Frank Miller" <fmiller01@sprynet.com> To: <vanagon@GERRY.VANAGON.COM> Sent: Thursday, July 13, 2000 5:23 AM Subject: Re: Weep No More For Me

> Fine, but what about the inertial effects on the water depending on the > velocity of the van or whether the van is going forward or in reverse? > Hurry up Friday! > > > At 10:50 PM 7/12/00 -0400, Karl F. Bloss wrote: > >> based on the original poster's assumption that the water pump has to work > >> relatively hard to pump coolant uphill, would it do less real work if > the van > >> were constantly driven downhill? > > > >Forget differential equations. If it's a closed non-leaking system, it > doesn't > >matter how the van is facing, the waterpump is only overcoming the frictional > >losses in the system, not pumping up or down. I.e. the more piping, the more > >friction, the more the pump has to work. > > > >Uphill and downhill don't matter because the starting and stopping point for > >the fluid is the same. If the van is facing downhill, for every unit mass of > >coolant that's going downhill, another unit mass is going uphill and vice > versa > >if it's pointing uphill. > > > >-Karl > > > >Karl & Kristina Bloss, Trexlertown, PA - '87 Weekender "Bev" - 199K Miles > >http://www.enter.net/~bloss/vw - vanagon@makarov.com > >VW Shop List: http://www.enter.net/~bloss/vw/vwshops > >PA/NJ/DE/MD area VW bus "group" http://www.enter.net/~bloss/vw/pavanagon > >Red Hat LINUX 6.2 - for IQs higher than 98 > > >


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