mechanical fan vs electric
#2246501
02/03/17 02:06 PM
02/03/17 02:06 PM
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Joined: Jan 2007
Posts: 8,040 Mt Morris Michigan
mopar dave
OP
master
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OP
master
Joined: Jan 2007
Posts: 8,040
Mt Morris Michigan
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Thought I would start another post about cooling a 500+ BB in an A body. Still not sure which way I'm going with the radiator,but as this point I could go A or B body down flow. I would like to cool this with a 440 source mechanical 40gal water pump and a flexi-lite 6 blade fan with a full rad. shroud. Can this be done or do you think it would be easier to cool with electric fans? Heres the fan.
Last edited by mopar dave; 02/03/17 02:08 PM.
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Re: mechanical fan vs electric
[Re: mopar dave]
#2246532
02/03/17 02:38 PM
02/03/17 02:38 PM
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Joined: Oct 2003
Posts: 21,345 Marysville, O-H-I-O
70Cuda383
Too Many Posts
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Too Many Posts
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
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Mechanical fan on a clutch or electric. Never a direct drive fan.
Mechanical can move a lot more air, but the advantage of electric is you can cool the radiator while the engine is off. If you are over heated, kill the motor, let the fan run a minute, then fire it back up to circulate water, and repeat till you're cool.
I like electric because it's only on when you need it. Not turning the clutch/fan when you don't need it. I kept a 500 hp big block cool with a properly sized fan and clean, well maintained radiator
**Photobucket sucks**
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Re: mechanical fan vs electric
[Re: mopar dave]
#2246615
02/03/17 04:44 PM
02/03/17 04:44 PM
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Joined: Jul 2004
Posts: 19,317 State of confusion
Thumperdart
I Live Here
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I Live Here
Joined: Jul 2004
Posts: 19,317
State of confusion
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Thought I would start another post about cooling a 500+ BB in an A body. Still not sure which way I'm going with the radiator,but as this point I could go A or B body down flow. I would like to cool this with a 440 source mechanical 40gal water pump and a flexi-lite 6 blade fan with a full rad. shroud. Can this be done or do you think it would be easier to cool with electric fans? Heres the fan. El decapitate..........those things are dangerous and I run the HHR chevy fan w/a Moroso w/p. and they work well together and the new pump cools a bit better. Street car, desert heat.............
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: mechanical fan vs electric
[Re: 70Cuda383]
#2246653
02/03/17 05:43 PM
02/03/17 05:43 PM
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Joined: Feb 2007
Posts: 5,080 organ
maximum entropy
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master
Joined: Feb 2007
Posts: 5,080
organ
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Mechanical fan on a clutch or electric. Never a direct drive fan.
never say never.
for what is the good life if not doing things thoughtfully?
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Re: mechanical fan vs electric
[Re: maximum entropy]
#2246656
02/03/17 05:46 PM
02/03/17 05:46 PM
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Joined: Nov 2007
Posts: 21,825 Kirkland, Washington
Pacnorthcuda
Too Many Posts
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Too Many Posts
Joined: Nov 2007
Posts: 21,825
Kirkland, Washington
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Mechanical fan on a clutch or electric. Never a direct drive fan.
never say never. Yep. I ditched the clutch in favor of direct. Best way to move air if that's your goal.
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Re: mechanical fan vs electric
[Re: mopar dave]
#2246661
02/03/17 05:52 PM
02/03/17 05:52 PM
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Joined: Jan 2003
Posts: 13,365 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,365
Marion, South Carolina [><]
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Those flex fans are notorious for losing blades and hurting people. Get a good electric fan setup. I use the fan and shroud setup off a 2003 dodge Viper.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: mechanical fan vs electric
[Re: mopar dave]
#2246663
02/03/17 05:54 PM
02/03/17 05:54 PM
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Joined: Oct 2003
Posts: 7,506 Az
Crizila
master
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master
Joined: Oct 2003
Posts: 7,506
Az
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Thought I would start another post about cooling a 500+ BB in an A body. Still not sure which way I'm going with the radiator,but as this point I could go A or B body down flow. I would like to cool this with a 440 source mechanical 40gal water pump and a flexi-lite 6 blade fan with a full rad. shroud. Can this be done or do you think it would be easier to cool with electric fans? Heres the fan. What you propose would be the way I would go, ( Simplest, least costly, best cooling capability, no additional amp draw issues to contend with ) especially for the street. I would lean more to electric for race only application.
Fastest 300
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Re: mechanical fan vs electric
[Re: Crizila]
#2246673
02/03/17 06:06 PM
02/03/17 06:06 PM
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Joined: Jan 2003
Posts: 516 ,Pa.
68dodge
mopar
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mopar
Joined: Jan 2003
Posts: 516
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I like the electric fans and pump, for street or strip in my big block A-Body. On the street, if you would run into a problem with the car running hot because of traffic on a hot day. You can just stop and let it cool down. Same when you at the track between runs. But that's your own choice.
Last edited by 68dodge; 02/03/17 06:07 PM.
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Re: mechanical fan vs electric
[Re: mopar dave]
#2246693
02/03/17 06:24 PM
02/03/17 06:24 PM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
master
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master
Joined: Sep 2014
Posts: 4,457
Washington
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Then fan you posted is the fan I use.
I can tell you that a quality mechanical pump and fan with the correct pullies (I overdrive my WP 6% and would have done 10 I'd I could have found pullies).
I have a hard time getting heat in the engine without a Tstat.
The WP, speed you turn it and the area of the radiator is what counts. Most guys don't run enough pump or pump speed. Flow is what cools. The fan pulls air at idle and low speeds.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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