How can I improve low-speed cooling?

230* scares me Got a shroud?

Nope, does that really help?

YUP!...Also, you can go to the Stewart site....See link:http://www.stewartcomponents.com/ Good advice in the FAQ and Tech Tips sectons.

Is the electric fan running the right direction? Later, Dave

I was also thinking of wiring the fan differently, because it's wired to go on above 192, so I was thinking it would help to wire it to stay on all the time?

Gasoline Junkie said:

I was also thinking of wiring the fan differently, because it's wired to go on above 192, so I was thinking it would help to wire it to stay on all the time?

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If the fan comes on at 192, it should be running when it gets over that, and cool it down, so running all the time won't help.
I agree, a shroud will help and also make sure as much air is going through the entire core as possible and not going around the radiator. Missing hood baffle or poor fitting radiator to core support will all cause air flow around, instead of through the radiator.

acardon said:

If the fan comes on at 192, it should be running when it gets over that, and cool it down, so running all the time won't help.
I agree, a shroud will help and also make sure as much air is going through the entire core as possible and not going around the radiator. Missing hood baffle or poor fitting radiator to core support will all cause air flow around, instead of through the radiator.

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But how well could a shroud help at a stand-still?

Gasoline Junkie said:

But how well could a shroud help at a stand-still?

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A shroud can let the fan pull air through all corners of the core, instead of just directly in front of the fan. Take a sheet of paper and hold it in front of the core at different places and see if the fan holds it against the radiator.

I don't see how a shroud would work with an electric fan. Is the fan a puller or pusher?Not that i really maters at stop but at speed I feel a puller is more effective because it does not block the radiator like one in the front does.
I ask the same question as Dave, is the fan turning the correct direction? I had to reverse the wiring on mine because they were blowing instead of pulling.
Jim

acardon said:

A shroud can let the fan pull air through all corners of the core, instead of just directly in front of the fan. Take a sheet of paper and hold it in front of the core at different places and see if the fan holds it against the radiator.

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I see, my radiator is behind the support, with the fan in front pushing through. Is that a good setup?

In that case, a shroud may not help much. Do you have room for a mechanical fan or an electric one behind the radiator? Can you post some pictures of your setup?

acardon said:

In that case, a shroud may not help much. Do you have room for a mechanical fan or an electric one behind the radiator? Can you post some pictures of your setup?

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Nope there's no room, I'll post some pics as soon as I can.

Was that fan designed as a pusher fan? Some fans that were designed as puller fans with cupped blades are inefficient when wired to turn the opposite direction. Also, it may be more efficient if it were closer to the radiator.

I agree, no way that will cool. You can mount dual Spals inside the core support from the back side.

Thats a stock electric fan from a later model vehicle. I agree that it will never work efficiently. Do NOT go get a new electric fan from a parts store like Auto Zone. They have a 16" on the shelf thats around $80 and it does NOT have enough CFM to cool either. Look to SUMMIT or Jegs for an electric fan thats above 2000 CFM. The higher the CFM, the better it is. A full shroud for an electric fan is a very good item to have with lower CFM fans but a 16" with 3000 CFM will be OK by itself. I would never put an electric fan in front of a radiator. If you don't have room behind it, just go with a mechanical fan on the engine. Stock V8 core support with radiator behind it makes for little to no room for an electric fan.

Here's a good article on cooling http://www.streetrodderweb.com/tech/0906sr_different_ways_to_cool_engines/index.html

humm that fan setup does not look good at all. Im running the stock fan and then a electric pusher on the front. i keep mine under 200 in most situations.