fan question
Thread Starter
Drifting
Joined: May 2004
Posts: 1,258
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From: Huntsville Alabama
fan question
Will an 11.5 fan be sufficient to cool my 75 with no a/c. the radiator is brand new along with a fresh rebuild on my 350 I am pushing about 400 hp. so i am wanting to know if this size fan will be sufficient. The guy that has it says he ran it on a circle track race car as the primary source for cooling and it worked great.
Race Director
Joined: Dec 1999
Posts: 19,610
Likes: 778
From: Forked River NJ
Originally Posted by Silver00V6Camaro
Will an 11.5 fan be sufficient to cool my 75 with no a/c. the radiator is brand new along with a fresh rebuild on my 350 I am pushing about 400 hp. so i am wanting to know if this size fan will be sufficient. The guy that has it says he ran it on a circle track race car as the primary source for cooling and it worked great.
Burning Brakes
Joined: Oct 2002
Posts: 1,040
Likes: 109
[QUOTE=Gordonm]A circle track car is almost always moving so it has flow through the radiator. I would like to see him try to sit in traffic on a hot day with no air movement. That is a pretty small fan for a street car. I just put a single 16 inch fan on mine with a cfm rating of around 2300. It seems to do the job pretty well.
i had a small block stock motor except for intake,headers,maybe a cam
i was using a a stock new radiator around town slow no problem,after a run down the freeway and arriving home car puked coolant.
I have changed over to a huge aluminum ( Be Cool ) no puke now,fan now cycles olny after driving then stopped in parking lot (heat soak)
stock fan shroud ??
i had a small block stock motor except for intake,headers,maybe a cam
i was using a a stock new radiator around town slow no problem,after a run down the freeway and arriving home car puked coolant.
I have changed over to a huge aluminum ( Be Cool ) no puke now,fan now cycles olny after driving then stopped in parking lot (heat soak)
stock fan shroud ??
Melting Slicks
Joined: Oct 2004
Posts: 2,662
Likes: 8
From: Knoxville Tennessee
With the horsepower you are pulling and living in Huntsville, Alabama you need all the cooling you can get and the 11.5 inch fan is not enough. I am running two twelve inch fans with the shroud in place and seals around the radiator to force the air thru the radiator and this works for me.
Cruising down the highway would probably be ok, but I would expect that it would overheat in traffic. My $0.02.
Bernie
Cruising down the highway would probably be ok, but I would expect that it would overheat in traffic. My $0.02.
Bernie
