The of of this thread is to document and discuss the advantages and disadvantages of running an electric water pump in place of a standard belt-driven pump.
Advantages:
Keeping feet warm without idling the engine
Disadvantages:
More alternator load
Feel free to join in and add knowledge to this thread in the hope of building an authoritative reference on the subject.
Fred.
Electric Versus Belt-Driven Water Pump Pros & Cons
Electric Versus Belt-Driven Water Pump Pros & Cons
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- QFP80 - Contributor
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Re: Electric Versus Belt-Driven Water Pump Pros & Cons
Reduced parasitic load (total loss only)
Improved coolant temperature control vs full pump flow and thermostat
Improved coolant temperature control vs full pump flow and thermostat
Re: Electric Versus Belt-Driven Water Pump Pros & Cons
I'd keep the tstat regardless to create a pressure differential within the system.
BMWs and possibly others circulate full time to keep head temps even and only bring cold water into the circulating mix as required using their tstats. This is another option.
BMWs and possibly others circulate full time to keep head temps even and only bring cold water into the circulating mix as required using their tstats. This is another option.
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Re: Electric Versus Belt-Driven Water Pump Pros & Cons
99.9% of VW and many fords... circulate full time. They have a "3-way" thermostat that divert the water from a the small circuit (pump>> block >>head) to a the big circuit (pump >> block >> head >> radiator).Fred wrote:I'd keep the tstat regardless to create a pressure differential within the system.
BMWs and possibly others circulate full time to keep head temps even and only bring cold water into the circulating mix as required using their tstats. This is another option.
VW's 1.8t and 2.0t engines have both pumps... a small electric one and a regular belt driven. The electric pump is used to keep the water flowing to the water-cooled turbo after stoping the engine ...
I don't like to thrust the cooling of and engine completely on a electric pump, To many thing can go wrong .. A belt drive pump is simple and reliable.
Re: Electric Versus Belt-Driven Water Pump Pros & Cons
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FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!
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FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!