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Old 03-29-2011, 05:56 PM
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sbc electric water pump help

planneing on installing a electric water pump on my corvette sbc and would like to know from the grurus what they did to wire it in. im proficent when it comes to wiering but would like to install a noid light to worn me when the pump is not running or if it has failed (not running when it should be). also what is a stout relay that you great folks would recommend

TMF Lindbeck

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Old 04-01-2011, 04:13 AM
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You will find that most elec. wtr. pumps are not recommended for street use nor do most hot rodders use them that way.........up to you.
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Old 04-01-2011, 08:11 PM
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I have an electric water pump on my 455 pontiac that has done well on the street with no problems... but it is a weekend car too not an everyday car... that being said I used a normal 12v automotive relay that you can get anywhere. Got mine through summit but it is the same one that plugs into relay boxes in newer cars. I think I paid less than ten bucks for mine. Having a light come on when it had power would be easy but if the motor fried not sure how you could have a light come on for that. Best to watch the gauge.
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Old 04-01-2011, 08:34 PM
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The best you can hope for is the relay mentioned above and that is not going to tell you anything if the electric motor is fried. Anything better is going to require some rpm sensor from the electric water pump.

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Old 04-02-2011, 05:20 AM
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I think your best bet would be to wire up a temp sensor to light a dummy light instead of turning on a fan, use a adjustable sensor and have it come on at 250 etc......
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