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Old 11-13-2005, 12:12 PM   #1 (permalink)
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Recommendations for Electric Fan & Water Pump in 66 Mustang

With the small engine compartment in the 66 Mustang, what electric fan and electric water pump combinations will fit?

I need a fan that is pulling at least 2000 - 2500 cfm to keep my 347 cool in stop and go driving. But there seems to be very limited options as to fan/water pump combinations that are not too physically deep to fit in the existing space.

I don't want to cut or modify the radiator support due to the fact I just replaced all of the metal in the engine compartment at the beginning of the year.

Moroso seems to have the narrowest pump with a depth/thickness of about 5.75".

Thanks for any help.
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Old 11-13-2005, 06:29 PM   #2 (permalink)
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Recommendations for Electric Fan & Water Pump in 66 Mustang

The ONLY fan to go on a stock sized 65-66 mustang radiator is the Derale #16926. It's a brute, draws over 20 amps, is only 3-1/4" thick, blows like a hurricane, and has a built-in shroud that fits the stock sized radiator PERFECTLY.

Summit sells them for around $120. Just call them with the part number.

High Output 265 Watt Motors
Injection Molded Shroud with Pressure Relief Vents
Multiple Mounting Points
Stator Flow Directors
Designed as a primary cooling fan
Works as a puller fan only
Efficient with high static pressures



http://www.derale.com

They also sell some KICKASS accessories, including mounting kits and adjustable fan controller switches. (I use both)
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Old 11-13-2005, 08:14 PM   #3 (permalink)
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Recommendations for Electric Fan & Water Pump in 66 Mustang

http://cgi.ebay.com/ebaymotors/Stree...13011143QQrdZ1

Flows 200cfm more and costs less than half the price of the Derale product.

Have this on my '66 331 and it keeps it perfectly co0led.

The Derale fan isnt the ONLY fan that will fit.
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Old 11-13-2005, 08:50 PM   #4 (permalink)
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Recommendations for Electric Fan & Water Pump in 66 Mustang

I recommend the Derale. It has a full shroud and flows very well. It is a nice fir to the 65-66Mustang rad - like it was made for it.
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Old 11-14-2005, 05:06 AM   #5 (permalink)
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Recommendations for Electric Fan & Water Pump in 66 Mustang

Be careful of cfm ratings.... They are sort of like electric motor horsepower ratings. There is no set standard, so they are free to advertise pretty much whatever they please. I have a "5hp" 120V air compressor that doesn't put out anywhere near that. The amp draw of the motor is a more accurate description of it's real output.

The Derale is indeed the best fan for a 65-66 out there.
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Old 11-14-2005, 05:49 AM   #6 (permalink)
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Recommendations for Electric Fan & Water Pump in 66 Mustang

I need one eletric fam for my mild 302 in my Maverick,
this Derale #16926 wil work like in the Mustang radiator?
This will fit perfectli?

[ This Message was edited by: hotmaverick302 on 11/14/05 4:49pm ]
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Old 11-14-2005, 09:08 AM   #7 (permalink)
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Recommendations for Electric Fan & Water Pump in 66 Mustang

Used the Derale before...only electric I'll use in an early 64-66 Mustang. Other fans that will work may be out there, but this one has proven itself to me and many others on this board time and time again. Because they are so good it can be hard to find one cheap though, but it is well worth it.
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Old 11-14-2005, 09:14 AM   #8 (permalink)
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Recommendations for Electric Fan & Water Pump in 66 Mustang

You guys convinced me on the Derale fan. Thanks for all of the advice. Will be ordering sometime this week.

Has anyone used the Moroso water pump #63585 for a small block? I know CSR, Meizere, and a few others have electric pumps but they are all over 6" deep. Anyone had experience with the Moroso?

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Old 11-14-2005, 09:22 AM   #9 (permalink)
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Recommendations for Electric Fan & Water Pump in 66 Mustang

I used the Derale #16749 adjustable temp controller and the Derale #16743 mounting kit. All available through Summit. Can be seen below.

http://www.derale.com/electricfanaccess.shtml

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Old 11-14-2005, 09:34 AM   #10 (permalink)
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Recommendations for Electric Fan & Water Pump in 66 Mustang

I am sure the Derale fan is great but I run the Spal fans and those are awesome too. They rate all their fans with the fan mounted to the radiator. It is not a free flow rating like most of all the others. Spal just came out with a 16" extreme fan that moves 3,000cfm. I would put this fan up to any other in terms of perfomance. I run the dual fan setup on my car. With my 342 stroker stock four row 10 year old radiator and in 102 degree heat my car never gets over 185 sitting in traffic or going down the highway. This fan is a little more then the Derale but I Guarantee it flows more air. You want the most airflow over the radiator you can get and this is the fan to do it period. The Derale fan would fit the Radiator better though with the shroud it has so that would be the cheaper way to go. I think both are great ideas. I just thought I would throw out another option for you.

http://www.srbymichael.com/manufactu...pal/fans.shtml

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[ This Message was edited by: EricButler on 11/14/05 8:35pm ]

[ This Message was edited by: EricButler on 11/14/05 8:40pm ]

[ This Message was edited by: EricButler on 11/14/05 8:40pm ]
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Old 11-14-2005, 04:31 PM   #11 (permalink)
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Recommendations for Electric Fan & Water Pump in 66 Mustang

I also recommend the derale 16926. I was really impressed that it kept my .060 over 418 ant 190 deg. That was with my stock 2 row copper radiator. It's also a perfect fit to the stock rad. You won't be disappointed.
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Old 11-14-2005, 07:41 PM   #12 (permalink)
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Recommendations for Electric Fan & Water Pump in 66 Mustang

I too opted for the derale for my 65... it fit like a glove and cools my motor perfectly.... just make sure you have an altenator that can handle the amp draw.
It literally installs in about 2 hours and cleans up the engine bay nicely... Also, make sure to go with the temp switch probe that fits into the intake.... the rad probes are too unpredictable.

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Old 11-14-2005, 07:57 PM   #13 (permalink)
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Recommendations for Electric Fan & Water Pump in 66 Mustang

I used a spal fan from mustangs plus (the same one ferrari uses on their f 40) and it works great. the only time i have ever seen the temp even rise with the fan on was on a hot summer day going up a big grade. Probibly didnt even pass 195 degrees.
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Old 11-15-2005, 08:02 AM   #14 (permalink)
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Recommendations for Electric Fan & Water Pump in 66 Mustang

Like some guys have said Spal makes a good fan that moves a lot of air too. Tried a Spal that I picked up cheap used before going Derale, great fan, was just too thick for my application; I do not know that it was the thinnest fan they make though. Spal may have one that will work, but I can guarantee the Derale will.
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Old 04-06-2011, 02:59 PM   #15 (permalink)
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Re: Recommendations for Electric Fan & Water Pump in 66 Mustang

The spal fans are 4+inches thick and unless I'm missing something, it won't fit.
It certainly wont fit my 66 289.

I had the derale 16926 and THAT SHROUD BLOCKS AIR FLOW BIG TIME. those 4 little rubber air flaps just don't cut it. It never cycled...sprinted to 195-205 and stayed around there, but ran constantly....on the highway it actually got hotter!, as others have noted. I had the hot rod air expensive setup and added a spal v3 controller. The radiator blew a pin leak and I decided to go with an aluminum 1" core tube radiator as an improvement but it got worse. When the fan started to go, I got the new derale 14.5" (2 5/8 thick) high out put fan.

Now the setup Works fantastic. Cycles even light to light. We are in the 70's now and it runs a 180 thermostat and stays around 180-190 around town. The fan hasn't yet kicked into the high cfm side of the motor. Probable will light to light on hot summer days...we will see. On the highway it drops to 180 and the fan goes off.

Last edited by homeslice66; 04-06-2011 at 03:03 PM.
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