Electric Water pumps

[briweekes]

Now here's a really good idea, anyone tried this? the theory seems good to me:


http://www.youtube.com/watch?v=nrfux_-6RVw&feature=player_embedded#at=84

Its an Australian company, who produce the Davies Craig water pump, and I can imagine with such hot air temps, something like this would be just the ticket. Being able to keep water flowing through the engine after shut down is a great idea.

Removal of the mechanical thermostat would also increase water flow, and the guts of the OEM pump (and/or pulley, but not sure of thats practical to remove, given the need for different cam belt length). Probably something to set yourself up for, before installing the engine in that case.

[cdwood2010]

That is very interesting indeed. Can't imagine why it hasn't become the norm sooner.

I always wondered about flow rates given that they are rpm driven, as I know certain pumps perform better and more efficiently at a lower speed. Central heating pumps for example work better when set to a lower speed, as it gives the heat dissipation more chance.

I recall mr Woods identified that certain non Toyota water pumps moved less water at idle than the original items, causing a slight heat rise.

It stands to reason that a smarter way to move water around the engine would make a lot of sense.

Now who's going to buy and try!?

Chris.

[Paul Woods]

Davies Craig!!!

http://www.twobrutal.co.uk/forum/images/recovered/2011/12/159.jpg

Sorry couldn't resist..... as you were.

[loadswine]

I ran a Davies Craig electric pump as a secondary water pump on my Roadster V6, it was set up to kick in on a thermo switch, basically when the thermostat opened. I also had a manual override so thje pump could be run whenever you wanted it. Never had any heat soak issues with that. :)

[cdwood2010]

Yeah, I'm liking this a lot!

C.