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  1. #1
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    Default electric water pumps on a street car

    Hey,

    This is really the only forum that sees traffic and I couldnt see anything recent so here it is:

    The old days of the little moroso motor on your factory mech pump are long gone and I'm considering an electric water pump, remote mounted to free up some space and let me cool the engine while its not running if I have to.

    I'm thinking of the meziere 55gph.

    Any of you using an electric water pump on a street car and how did you find it compared to mechanical?

    The only thing that bothers me is whether they can build enough pressure in the block to keep localised boiling under control. I know a mech pump can cavitate if conditions are lousy (too much rpm/bad impeller/too much clearance etc) but it's hard to beat OEM smarts for simplicity.

  2. #2
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    I never had any issues, alloy heads and radiator, no engine oil cooler.
    Still has no issues but no street driven anymore.

  3. #3
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    Guy,
    You answered your own question: hard to beat OEM.....

    Plus, the factory pump is unlikely to suddenly fail [ necessitating a tow truck ]; it might get noisy, but you will get home. Just carry a spare fan belt.

  4. #4
    Do you ever leave? EH179's Avatar
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    Phil, have a look at the Davies-Craig with controller.

    I know of a couple tough street driven cars using one.

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    Quote Originally Posted by EH179 View Post
    Phil, have a look at the Davies-Craig with controller.

    I know of a couple tough street driven cars using one.
    I know of BB Chev in a HQ that makes around 800HP with that set up and it does a lot of trouble free street miles. If I was going an electric water pump that's the exact set up I'd use.

  6. #6
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    Quote Originally Posted by GtoGeoff View Post
    Guy,
    You answered your own question: hard to beat OEM.....

    Plus, the factory pump is unlikely to suddenly fail [ necessitating a tow truck ]; it might get noisy, but you will get home. Just carry a spare fan belt.
    I have RACV, I have no problem calling a tow truck.

  7. #7
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    Might start looking at getting a pump. I'm in iso for another 11 days with nothing much to do anyway.

  8. #8
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    I have been using a Meziere since 2014, no issue at all, also has a port for heater some my heater works as normal.


    https://hosting.photobucket.com/albums/bb35/TRIKHQ/IMAG2396_zps90697046.jpg

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    I have been using a Meziere since 2014, no issue at all, also has a port for heater some my heater works as normal.

    [IMG]https://hosting.photobucket.com/albums/bb35/TRIKHQ/IMAG2396_zps90697046.jpg?width=960&height=720&fit= bounds[/IMG]

  10. #10
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    So after a bit of research I'm now thinking the DC EWP150 is what I'll use.

    Still have a sour taste from years back when the plastic housing EWP80 was underperforming and had a tendency to crack but the alloy housings seem to be a good thing and after reading some testing done by a guy who builds w2a coolers and tested a bunch of EWP's, the DC pump won the day (even though they rate it at 40gpm rather than the 55 of most others it still performed better), I think I'll go that way.

    I can buy two for the cost of the meziere and they are available local.

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