CVR Electric Water Pump Adapters for the FE

[fe66comet]

They look great BTW looks like you about got it. Will they work in a bat mobile? Just kidding LoL

[cwhitney]

Looks Great Jay, Awesome work. Looking forward to putting one of these on my car.

[Brutalbob]

Jay, Regarding an earlier post here, I've found (depending on the belt type pump used) a 7 to 24HP gain with an electric pump. I'll dig the data out and send it to you as soon as we complete that huge engine order I told you about. Bob

[jayb]

Thanks Bob, that will be interesting data.  I wonder what causes the variations you saw?  7-24 is a pretty big range...

[fe66comet]

Another factor is the electric pumps ability to cool at any RPM I have had and driven many cars that over heat in traffic of low speed driving in the city or car cruises.

[Brutalbob]

Jay, If memory serves correctly the largest gain was a BB Chevy with an off shore pump we could hardly turn by hand before removal.  The least was a SB Ford that had a NAPA pump. Bob

[66FAIRLANE]

I have tried these Australian made in line pumps before with zero sucess at idle or speed. Maybe they just don't flow enough but I am a little gun shy of electric pumps after this experience.

http://www.daviescraig.com.au/Electric_Water_Pumps-EWP115__12V___ELECTRIC_WATER_PUMP___PART_No__8025-details.aspx

[jayb]

Just doing the math on the web site, that is a 30 gpm (gallons per minute) pump.  The ones we are talking about are 55 gpm, so they should be better, but I'm surprised that even with the pump you mentioned that you had cooling problems at idle.  Since the stock pump is running at a low speed at idle, I would expect it's output to be less than the electric.

How did you have the electric hooked up?

[66FAIRLANE]

Hi Jay

There is a bit of a story to this. When they first came out I bought one with a controller. It was hopeless. I rang them and spoke to a guy who told me the controllers didn't work properly and to just wire it straight in. I did and there was improvement but still was nowhere near good enough to cool properly. Shelved it.

A few years later they came out with a bigger unit. I phoned and went through my experience and they sold me one at cost and assured me the bigger one would do the job. I had also upgraded my radiator by now to a monster and was pretty confident. In short still nowhere near good enough. Tried with and without thermostat. Polarity correct (ie. water rushing in to top tank). The pump was mounted down by the outlet. Heres a pic of the manifold I made and the two pumps.

[fe66comet]

Looks like a.centrifugal boiler.pump off a B&G LOL

[jayb]

Hmmm, don't know what to make of that.  For what it's worth, that pump doesn't look anything like the other electric water pumps I've seen.  The 55 gpm Meziere pump on my Mach 1 cools the engine beautifully at idle and at speed on the freeway, when the car is running around 3200 RPM at 70 MPH.  Of course I have a good radiator and two Spal electric fans, but if the pump wasn't up to the drill I don't think the radiator and fans would matter.

Anybody else have some street experience with an electric water pump that they can share?

[mike7570]

Well not exactly street experience.
I used an Edlebrock aluminum water pump with a simple Moroso electric motor on my tunnel port race cars. The '67 had a large cross flow radiator and would not over heat at all. In fact I had trouble keeping it warmed up. The same engine and pump was moved into my '69 which had a small Sirocco radiator and it needed to be cooled down at the end of every pass. It cooled down okay but it heated up quickly also. I had trouble keeping the temperature down (just the opposite of the '67)
In my case with flow rates the same it was more important to have a larger capacity. Keeping it warmed up was easier to deal with than overheating. 

[fe66comet]

The pump pictured is a high speed centrifugal pump not very efficient for that type of application.

[afret]

Removed the obstruction to the radiator hose.  Should give a straight shot to the inlet tube.

[jayb]

That'll work!  FYI I'm still working on those adapters, but I think I want to actually put them on an engine and run it with them to make sure everything does what is is supposed to do before I put them up for sale.  Hopefully I can get my 428CJ on the dyno this weekend and run the test.  Then I've just got to build a few copies of the adapters...