

| Subject: | Re: Engine electrical power requirements? |
| From: | Jake de Villiers |
| Date: | Sat, 22 Aug 2009 10:02:06 -0700 |
Thanks. I'd never really considered that factor before - I'm from old cars without doodads! =) On Fri, Aug 21, 2009 at 7:24 PM, pdooley <psdooley@verizon.net> wrote: > The heater current drops down but doesn't cut out. > I don't have specific numbers, but the heater element is powered when the > car is on, at least on my car. > > -----Original Message----- > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of > Jake de Villiers > Sent: Friday, August 21, 2009 9:16 PM > To: vanagon@GERRY.VANAGON.COM > Subject: Re: Engine electrical power requirements? > > Right - I thought the fuel pump would obviously be the primary user...I > guess the heater cuts out at some point then? > > On Fri, Aug 21, 2009 at 8:55 AM, pdooley <psdooley@verizon.net> wrote: > > > You would think so Jake, but not the case. > > The O2 heater element draw is non-linear. The draw starts off high but > > drops significantly as the element heats up. > > OTOH, the fuel pump has to provide high pressure continuously, and gets > my > > vote for current hog. > > > > > > -----Original Message----- > > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf > Of > > Jake de Villiers > > Sent: Friday, August 21, 2009 11:22 AM > > To: vanagon@GERRY.VANAGON.COM > > Subject: Re: Engine electrical power requirements? > > > > Our race car had no alternator fitted and would run the starter, fuel > pump, > > gauges and ignition for 2 practice sessions and a race without needing to > > be > > recharged. > > > > Prolly the biggest consumer would be the oxygen sensor - I can't see the > > ECU > > needing bags of current... > > > > > > > > > -- > Beverley Anne de Villiers April 20, 1930 - July 4, 2009 > > Jake > > 1984 Vanagon GL > 1986 Westy Weekender "Dixie" > > Crescent Beach, BC > > www.thebassspa.com > www.crescentbeachguitar.com > http://subyjake.googlepages.com/mydixiedarlin%27 > > -- Beverley Anne de Villiers April 20, 1930 - July 4, 2009 Jake 1984 Vanagon GL 1986 Westy Weekender "Dixie" Crescent Beach, BC www.thebassspa.com www.crescentbeachguitar.com http://subyjake.googlepages.com/mydixiedarlin%27
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