In article <200809211047.50241.info@zaccaria-pinball.com>,
info@zaccaria-pinball.com (David Gersic) writes:
>
>
> On Sunday 21 September 2008 09:11 am, Terrible Tom wrote:
> > The goal is to have plenty of amperage capability. And a backup is a
> > good idea too... I've looked around and for the cost of a single 160A
> > MSD alternator... I can easily do dual 136A units for 272 rated amps.
> >
> > My 4 KC's alone draw almost 35 amps. Throw in a snow plow, a winch, some
> > more auxillary lighting, and perhaps a few other things... and your amp
> > requirements climb.
>
> If it were me, I'd be tempted at this point to build separate systems. Leave
> your regular alternator powering the truck and it's running requirements. Put
> all of this other stuff (lights, plow, winch) on an auxiliary system powered
> by its own alternator. Maybe if you want to have a "backup" capability,
> design in a way to power the truck off the auxiliary system with a switch, so
> that if the primary dies somehow you can still drive it home.
>
> You might need to run more cable to do this, to keep the systems isolated.
But
> it seems to me that you'd be better off this way.
>
>
Perhaps - but if I isolate them, I'm back at the same problem... then I have
two 136A systems, instead of one 272A system. I would have to figure out a way
to combine the systems when needed... which makes it more complicated.
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