New 42Volt systems

[justin ivan]

Can't say as I strip Gm's but I have stripped many a vw and I know that the 
last one I stripped was a 90 with ABS, no airbags and the engine harness 
weighed 25+ lbs and the main harness with abs brain etc weighs close to 50 
lbs...


>From: romans at starstream.net (Romans, Mark)
>Reply-To: diy_efi at diy-efi.org
>To: <diy_efi at diy-efi.org>
>Subject: Re: New 42Volt systems
>Date: Wed, 24 Jan 2001 07:55:06 -0800
>
>I bet it's closer to 50 lbs.  GM uses serial data lines to connect
>all the devices to save weight.
>I have seen the harnesses laying out on the ground and I could
>easily pick up the whole thing.
>Mark
>----- Original Message -----
>From: "Shirley, Mark R" <MarkRShirley at eaton.com>
>To: <diy_efi at diy-efi.org>
>Sent: Wednesday, January 24, 2001 5:24 AM
>Subject: RE: New 42Volt systems
>
>
> > That's the primary reason.  Weight.  I heard from a buddy at CLCD
>(cadillac
> > engineering)
> > that the typical Cadillac has 500lbs of wire on board.  Secondary 
>benefits
> > are you can
> > run power hungry devices such as solenoids that push open valves.
> > And to the guy who said something about F1 cars using this, I doubt it 
>was
> > electric solenoids.
> > Maybe a oil/electric hybrid.  I've seen em.  Even the 42V jobs are huge.
> > 12V would be like a
> > coffee can on each valve.  With 1/0 wire going into it!
> >
> > -----Original Message-----
> > From: James Montebello [mailto:jamesm at lapuwali.com]
> > Sent: Wednesday, January 24, 2001 3:29 AM
> > To: diy_efi at diy-efi.org
> > Subject: Re: New 42Volt systems
> >
> >
> >
> > Higher voltage for the whole system means less current for the same 
>power
> > (wattage).  Wire gauge is based on current, not power or voltage, so 
>with
> > less current you can use thinner, lighter wiring and connectors.  Wiring
> > harnesses weigh a lot, and are getting more complex all the time.
> >
> > james montebello
> >
> > On Wed, 24 Jan 2001, Wes Branchflower wrote:
> >
> > > Why dont they just bring the 12 upto 42volts with an invertor for the
> > > electronic valves instead of upgrading the whole system to 42volts, or
>is
> > > their other reasons?
> > > So their will be 42Volt batteries in cars soon?
> > > I wonder why they chose 42volts?
> > >
> > >
> > >
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