Oops... Jon...
Watts = E x I 1 Hp equals 746 watts 3 hp = 2238 watts 2238 =
13.7 volts x I amps I = 163.35, oh hell 164 amps.
conclusion right , you forgot to multiply the 54.5 by 3 = 163.5 amps. A-
Heres is where I see thing in a diferent perspective. Both pumps have to
pump against the orifice of the thermostat. The mechanical pump is driven
by the crank or cam and as rpm goes up, the head pressure goes up
accordingly. As the head pressure goes up pumping against the orifice the
mechanical pump take significantly more that 2 or 3 hp to operate. The elec
pump is a consyant pumpinmg speed and can pump the same amount of water at
lower head pressure so those motors are reasonably small. If the flow rate
is correct then there should be no hot spots unless you have a chevy. :^}
because the water is moving past sufficiently to moving cooler water into
that location.
mayf, off planet in Pahrump
----- Original Message -----
From: "Jon Wennerberg" <jon@infodestruction.com>
To: "Dave Dahlgren" <ddahlgren@snet.net>
Cc: <land-speed@autox.team.net>
Sent: Monday, March 14, 2005 11:06 AM
Subject: Re: FW: electric water pump and thermostat
> On Monday, March 14, 2005, at 12:39 PM, Dave Dahlgren wrote:
> > how would you propose getting 2 or
> > 3 hp though the number 16 wire at 13.7 volts DC?
> >
>
>
> I come up with something like 54 1/2 amps (assuming 100% electrical
> efficiency), and to get that much through a #16 wire would be simple if
> said wire was submerged in liquid nitrogen or some other cold stuff.
>
> Jon Wennerberg
> Seldom Seen Slim Land Speed Racing
> Marquette, Michigan
> (that's 'way up north)
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