Newer cars use an electric waterpump instead of a belt-driven one. I don't know how much power the WP consumes on the Insight, it's said up to 2 kW amount ALL production cars. An electric WP would use around 200 Watt and may could be regulated according to the temperature.
The Insight doesn't use 2 kW as the rpm's are low and the engine is small.
This would be a high-risk project I just brought up the idea.
We talked about it on the geo forum I am a member of and it was concluded it wasnt any benefit. Too low service life, too much power. Then special coolant was needed.
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Enginer 4 kilowatt PHEV, 3000k 35 watt fogs, Eco bulb highs, 4300k 35 watt low all w/relay kits, DRLs/Rear Wiper removed&rear interior gutted, Sony HU W/front speakers, Tanabe nf springs, 35% tint all around, all LED lamp replacement, 09 fit progress rear sway bar, OEM block heater, full gril block, KN Filter, Honda vent visiors, group 51 battery, home made balancer/grid charger Best/Worse MPG 96/36
I've thought about this too. There are some electric water pump conversion kits on ebay, which are just electric motors with a belt, that drives the original water pump. But then there is chance for the E-motor failure and other problems from that.
But if you would be removing the water pump belt, might as well remove the a/c completely also...
Can you give us an example of a car you know that uses an electric water pump that is oem? Many cars may not have a visible mechanical pump, but all do and its either driven by the timming chain or belt, like the oil pumps or the crank directly.
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Enginer 4 kilowatt PHEV, 3000k 35 watt fogs, Eco bulb highs, 4300k 35 watt low all w/relay kits, DRLs/Rear Wiper removed&rear interior gutted, Sony HU W/front speakers, Tanabe nf springs, 35% tint all around, all LED lamp replacement, 09 fit progress rear sway bar, OEM block heater, full gril block, KN Filter, Honda vent visiors, group 51 battery, home made balancer/grid charger Best/Worse MPG 96/36
Can you give us an example of a car you know that uses an electric water pump that is oem? Many cars may not have a visible mechanical pump, but all do and its either driven by the timming chain or belt, like the oil pumps or the crank directly.
One of the BMW's (Mini?) is said to have one and they tend to you it more in the future.
All pumps can go bad, a belt driven one also. Leaking is the 'minor' problem, locking the serious one. But I don't know the failure rates of electric waterpumps. The conventional ones fail pretty rare.
Nice! Does it fit an Insight engine? As far as I've read the flow is controlled by the ECU, it's not constant. The eBay kit require drilling holes in the thermostat and the like as the pump is providing too much flow/pressure with the thermostat closed. To sad they don't say how much the mpg increase just with this mod.
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Electric waterpump?
