Need a good water pump. Recommendations please...
Race Director
Joined: Mar 2006
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From: Florida
Team Owner
Joined: Jan 2006
Posts: 37,637
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From: Crossville TN
Not a problem dragonracer. I'm just trying to clear up some mis-conceptions about cooling systems so that everyone understands how a dynamic heat/cool system operates. The reason I got involved at all is that many folks think "more is better" when you are working on just one piece of a closed multi-part system. You have to consider the interactions of all the pieces in the system, as well. For a good cooling system, the heat exchanger AND the pump AND the fan all have to do their respective jobs. If one of the pieces in incapable of doing its job, the others can't make up for it.
Racer
Joined: Aug 2006
Posts: 359
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From: PYOTE BOMBER BASE TEXAS
I am goning to have to side up with the fellow from the desert...Being a Desert American myself.. By the time your are 16 years old, you have a good idea on how to keep a engine running as cool as possible. All the components need to be in a balance...It is just like life, if it is out of balance in one spot....then everything seems outawack....and it is hard to put you finger on what is wrong.
Back where I come from when the Summer Time rolls around ,and the Roads and Streets start to melt, and your tires get hot, and fail because they can not cool down.... I have not tried BIGGER TIRES..... only because the Semi-Trucks, seem to have a even worse time of keeping the rubber on the rims.....
Back where I come from when the Summer Time rolls around ,and the Roads and Streets start to melt, and your tires get hot, and fail because they can not cool down.... I have not tried BIGGER TIRES..... only because the Semi-Trucks, seem to have a even worse time of keeping the rubber on the rims.....
Race Director
Joined: Jul 2004
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From: Scottsdale Arizona
I also agree that coolant flow will not compensate for other deficiencies in your system (I believe I said that in the first post).
I will counter with a thermodynamic observation. Why does increased air flow increase cooling but increased coolant flow decrease cooling? The answer is that it doesn't.
Le Mans Master
Joined: Dec 2006
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Gettin' a little picky, I think. We can debate this all you want, but the faster you put fluid through a heat-exchanger, the less cooling you get. And if you push it through TOO FAST, you get darned little and the whole system overheats. Soooo....if your radiator/fan system is INADEQUATE, it is irrelavant as to what pump you are using....[Oh, just to be perfectly clear...unless it doesn't pump at all.]
I have seen heat exchanger efficiencies improved with lower flow rates. We use computers and variable frquency drives on pumps to maximize heat exchange.
Race Director
Joined: May 2005
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From: Millington Illinois
St. Jude Donor '08-'09
Too much flow is less efficient at cooling. I know this doesn't sound correct but the water needs to be in the radiator long enough to cool off before going back into the engine. To high of flow can be detrimental to cooling. A stock water pump is fine for most applications.
Team Owner
Joined: Jan 2006
Posts: 37,637
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From: Crossville TN
Thanks for the support on this issue. I don't care to be "right", I'd just like the Forum folks to gain a little understanding of the "give" and "take" of a system. You have helped to better describe what I wasn't able to get across. Thanks.
