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Old 11-14-2009, 03:07 PM   #30 (permalink)
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Location: South Louisiana
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FarFarfrumpumpen - '03 Volkswagen Jetta Wagon GLS Premium

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I think it is safe to say that an electric water pump on a thermostat will save energy on just about any ecodriven vehicle. BUT if you are operating in conditions which create lots of excess heat, then the mechanical pump will win out.
However the time for the pump to pay for itself is very long.

I had a short talk with a manufacturer of an electric cooling pump last week at SEMA ad they estimated that run time was between 5% and 20% on a SBC depending on conditions.
2012 Tesla Model S P85
2013 Nissan LEAF SV totaled by now deceased intoxacated driver.
2012 Nissan LEAF SV
6 speed ALH TDI Swapped in to a 2003 Jetta Wagon
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