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EA82T water pump mods????


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Well, I've seen in the hot rod small block chevy world that machining the housing .010" or so, adding some sort fo disc to the impeller, or just a different shaped impeller adds more flow. Just hoped somebody blazed this trail, already.

 

I need to replace my pump and wanted to mod it a bit while I had the chance.

 

Thanks for the reply.

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Hey Frank

 

I am actually looking into something like this but at a different aspect.

 

What I plan on doing is installing my radiator in the bed of my Brat. I think my biggest issue will be getting that much coolant to the back and back into the engine. I have been looking for supplimental inline pumps that would be able to be mounted between when the coolant leaves the engine and enters the radiator. Ive seen a few pumps but if any one could help on this subject please let me know!

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Wouldn't going to a colder thermostat achieve what you are looking for (more coolant flow)? I mean, no matter how much extra pumping power your coolant pump can achieve, the flow will be determined by the stock thermostat right? Maybe I'm confused..........:confused:

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Oh, and I think you should try it with the stock water pump and a cooler thermostat first. It might be powerful enough.

If it's not, you'll need a pump capable of higher pressure, not so much higher flow.

 

A cooler thermostat would allow more flow at a given temperature, up until the thermostat is open wide. After which point, the warmer thermostat doesn't increase flow. The thermostat opening temp. does not affect max. flow.

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Wouldn't going to a colder thermostat achieve what you are looking for (more coolant flow)? I mean, no matter how much extra pumping power your coolant pump can achieve, the flow will be determined by the stock thermostat right? Maybe I'm confused..........:confused:

The temp-rating of the thermostat really doesn't affect the flow, just when the flow occurs (disregarding the transient condition near its open point). A lower-temp thermostat can lower thermal-efficiency somewhat by keeping the coolant (and thus engine surfaces) cooler than designed.

 

I think that the water pump is the least of the problems as regards coolant flow in a standard engine. Some of the passages in the EA82 make me wonder...

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A cooler thermostat would help, since it opens sooner. But what I mean is volume, not pressure, or temp.. I know that there is a limit, you get too much flow and the heat can't saturate into the water. I was just looking foe a bit more.

 

Oh well. I guess I'll stick to the Water Wetter.

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You need to install a high efficiency 2 row radiator and a fresh OE Factory SUBARU thermostat and gasket.

 

that will solve any and all cooling issues unless there are leaks/blockages in the system.

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