Electric fan question

Author Topic: Electric fan question  (Read 7978 times)

Offline dodj

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Re: Electric fan question
« Reply #30 on: June 12, 2016 - 07:34:34 AM »
You need to have a fan that flows enough CFM
I think that is the main factor. Determining what is 'enough cfm' for your engine. :2cents:
Scott
1973 Challenger  440 4 spd 
2007.5 3500 6.7 Cummins Diesel, Anarchy tuned.
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Offline djw383

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Re: Electric fan question
« Reply #31 on: June 12, 2016 - 07:40:55 AM »
a nice 26 " Radiator....  Fan shroud  7 blade HD Fan Blade   a good HD fanclutch.. that ´s all you need

Never  used a E fan.... in my cars . When our cars  left the factory....the system worked even in Arizona...Death Valley....  ...
I have a Jeep in Brasil...only the HD Fan...with HD clutch...  Never had a problem...  and there the temp. goes up to 40 deg...in the shadow.. ( if you can find some....
My  DAILY  ( 300c Hemi )...has this awfull E fan Stuff....  the engine s runnin real hot...  101 Deg C in the city.....    the fans start to cool down the coolant @ around 103 deg.....    even with a 190 ° F / 88 deg C   thermostat....  not so nice...    a real SOLID Fan...or a fan with fan clutch would be way much better !!

Greetings Juergen
I agree! Stock fan and fan clutch and you really need the shroud.

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Offline 72bluNblu

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Re: Electric fan question
« Reply #32 on: June 12, 2016 - 02:53:37 PM »
I agree! Stock fan and fan clutch and you really need the shroud.

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Only works if you have a stock engine too. More horsepower = More heat. It's thermodynamic law, simple as that.

The stock mechanical fans, radiators and water pumps were designed for stock horsepower outputs. Once you start making significantly more horsepower, the stock cooling system can become inadequate. The factory offered several different radiator/engine combinations, so some combinations have more room to handle additional horsepower than others. But you can absolutely exceed the amount of horsepower that the stock system was intended to cool. For example, my Challenger has a 318, but it has a 26" radiator because it was an A/C car from the factory. Without the A/C removed like it is now, that leaves me a lot of room to add horsepower before I surpass the cooling ability of that 26" radiator. But if I had a 22" radiator, not nearly as much. It depends entirely on the combination of parts and the amount of horsepower.