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#1 |
Registered User
Join Date: Jul 2011
Location: El Campo, Tx
Posts: 1,246
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1 electric fan enough?
Is one 16 inch electric fan enough if it's attached to the stock 4 core big block radiator? I was looking at the Zirgo 3000 cfm fan for around 200 bucks and was wondering if that would work. Haven't had a problem with overheating using the stock engine driven fan. No AC at this time, maybe in the future, a little over 600 HP, lots of 100 degree days
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__________________
72 Chevy blue LWB, 99% original Oklahoma truck, 28,000 miles 72 Chevy SWB: http://67-72chevytrucks.com/vboard/s...d.php?t=486626 (Attempt/Mistake #2) 2003 Harley Davidson Dyna Superglide with 2007 Street Bob front end 2000 Ford F350 Powerstroke 4WD CCLB, 310,000 miles running great (STOLEN St. Patricks Day 2014 AND NEVER RECOVERED) 2002 Ford F250 Powerstroke 4WD CCLB (To replace stolen one) Hook em Horns!!! |
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#2 |
~Rest In Peace~
Join Date: May 2005
Location: CALIFORNIA NOR CAL
Posts: 9,707
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Re: 1 electric fan enough?
thats the one im running on my truck and i got a blower which suppose to run hotter,but i havnt seen it get over 190 , just install a relay switch with it ,i got mine so that it stays on with key on ,some guys like to run it all times and toggle switch it ,i used to do that but there were times i forgot to turn it off and battery went dead .
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is it fast ? it has a lighting bolt donut? B___H please, I can remove 90% of your so called "beauty" with a kleenex |
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#3 |
Registered User
Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,217
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Re: 1 electric fan enough?
Ive got a single 16 in. rated at 2800 CFM & the 4 core radiator. It runs a little hotter then I like in traffic with the A/C on. It has never caused a problem but I would go for a dual fan setup if I did it again.
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#4 |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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I have a 18" fan I just installed last week out of a Mini van for $40.00 bucks. It's hooked to the AC fan switch to the relay which runs only when the fan is on. It's keeping plenty of air moving on the condensor to keep the truck cool on these 100 degree day at 40 degree's inside even while sitting stil.
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 ![]() Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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#5 |
Registered User
Join Date: Mar 2011
Location: cleveland, ohio
Posts: 20
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Re: 1 electric fan enough?
Ive got a 19 inch fan out of a Mercury grand marque. I believe it was 2000 or so. The car ran an electric and a mecahnical fan. This was for the air unit.
I got this fan for 25.00. mounted it up and it works great. I am not running a mechanical fan with the small block. I have an alum radiator and a 160 degree thermostat. It never goes over 170 degrees , even in traffic. ![]() |
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#6 |
needs more $$$
Join Date: Mar 2004
Location: Sacramento
Posts: 1,936
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Re: 1 electric fan enough?
I always hear to use a shroud for best cooling, so I picked up the grand cherokee electric fan after reading this post: http://67-72chevytrucks.com/vboard/s...d.php?t=254617.
I don't have it in since my blazer currently isn't running, but it fits the stock shroud perfectly.
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1970 2wd Blazer |
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#7 | |
Its a Truck Thing......
Join Date: Dec 2004
Location: Sierra Vista, Arizona
Posts: 3,159
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Re: 1 electric fan enough?
Quote:
Running that fan and its working out real well so far. Smitty
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71 C10 283/3SPD Full Resto 71 GMC 1500 Sierra Grande http://67-72chevytrucks.com/vboard/s...d.php?t=518599 70 C10 Suburban Former military GSA truck. 72 Chevy Blazer 4X4, Sloppy Jo, Mountain Climber. Wife says no more trucks. http://67-72chevytrucks.com/vboard/s...d.php?t=707378 72 GMC 1 Ton Motor Home, wife said no more trucks until she saw this one. Gen 3 6.0/4L80E 4.10 http://67-72chevytrucks.com/vboard/s...d.php?t=761110 68 GMC Suburban was 3/4 ton, now 1/2.Wife shook her head 71 C30 Wrecker 71 C20 Scott-Bilt As weird as it gets..BB Cheyenne AC Truck 68 GMC Long Stepside. They keep following me home 71 C20 Longhorn/Ole Yellor 69 C30 Former Motor Home, Flat Bed time |
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#8 |
needs more $$$
Join Date: Mar 2004
Location: Sacramento
Posts: 1,936
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Re: 1 electric fan enough?
Cool! How loud is it?
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1970 2wd Blazer |
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#9 |
English Chevy Owner
Join Date: May 2002
Location: Shropshire, UK/ Lot, France
Posts: 1,848
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Re: 1 electric fan enough?
I'm putting a single 18" or so fan out of a Volvo 850 T5 in mine on a homemade aluminium shroud. This is replacing a single 12" fan with shroud from some car or other that the previous owner chucked on there, it only covers half the radiator and seems to cool OK so I guess the bigger more efficient one (its a curved multibladed job against the current one which has I think four straight blades) will do fine. Its being controlled by an adjustable derale controller with the temp switch going in the intake manifold next to the thermostat and the current manual switch in the cab will be used as a manual override.
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Phil '67 C10 long fleet. 350/TH350, 4 bbl Carter, K&N, Dual exhaust, loads of stuff coming soon 2001 S10 Blazer Daily Driver, bone stock 4 door 4x4 with manual transmission |
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#10 |
Junior Member
![]() Join Date: Mar 2005
Location: Wilmington DE
Posts: 218
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Re: 1 electric fan enough?
This is what the mopar fan looks like in a bigblock shroud.
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__________________
72 cheyenne super BB402 TH400 Air Tack Tilt Posi P/S P/B AM/FM 12.96 @ 101.82 mph 60ft 1.82 12.39 @111.33 With a 180 shot nos 69 Camaro RS http://s94.photobucket.com/albums/l117/fdelcoglin/ email fdelcoglin@hotmail.com |
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#11 |
Hollister Road Co.
Join Date: Apr 2005
Location: Houston
Posts: 6,134
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Re: 1 electric fan enough?
You can use a Mercury Cougar 4.6 or a T Bird fan. New at Rockauto its about $78. Far better than any Zirgo in price and dependability.
Here is a writ eup on it in a 72 C10 http://www.thehollisterroadcompany.com/MarkVIII.html |
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#12 |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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That is close to what mine looks like. Mine had a low speed and high speed wire on it. The motor was thicker though. I hooked up the low speed. The high speed was just to much I thought!
I hooked mine up in front of the radiator though because I didn't have enough room between the motor fan and radiator. ![]() ![]()
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 ![]() Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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#13 |
Registered User
Join Date: Feb 2010
Location: mesa az
Posts: 211
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Re: 1 electric fan enough?
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#14 |
Registered User
Join Date: Feb 2010
Location: mesa az
Posts: 211
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Re: 1 electric fan enough?
Just called mopar. The wire set for that fan is $34.00. Part number is 5013979AB. Fan Part number is cbg4f250 and it is $84.31
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#15 |
English Chevy Owner
Join Date: May 2002
Location: Shropshire, UK/ Lot, France
Posts: 1,848
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Re: 1 electric fan enough?
This is my volvo fan, I have a sheet of aluminium ready to build the shroud when I get back from my vacation.
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__________________
Phil '67 C10 long fleet. 350/TH350, 4 bbl Carter, K&N, Dual exhaust, loads of stuff coming soon 2001 S10 Blazer Daily Driver, bone stock 4 door 4x4 with manual transmission |
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#16 |
Registered User
Join Date: Jul 2011
Location: El Campo, Tx
Posts: 1,246
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Re: 1 electric fan enough?
Been a while since I posted on here but I had another question. Do any of you people who are running the Mopar fan have a part number handy? And any idea how many CFM it puts out? Surely a stock mechanical fan cannot move more than 1000 CFM if even that at an idle (which is what I am most worried about heating up at as at more than an idle there will be air flow through the radiator from driving) don't you all think? Also, (this may be a dumb question) is it possible to run TOO cool?? Not worried about winters as it is rarely colder than 30 here. Am thinking about putting in addition to electric fan a 3 or 4 core all aluminum radiator as well as a high flow water pump. If I run the fan all the time while truck is running with this setup will that be a problem?
P.S if the fan does not fit shroud I will build one for it
__________________
72 Chevy blue LWB, 99% original Oklahoma truck, 28,000 miles 72 Chevy SWB: http://67-72chevytrucks.com/vboard/s...d.php?t=486626 (Attempt/Mistake #2) 2003 Harley Davidson Dyna Superglide with 2007 Street Bob front end 2000 Ford F350 Powerstroke 4WD CCLB, 310,000 miles running great (STOLEN St. Patricks Day 2014 AND NEVER RECOVERED) 2002 Ford F250 Powerstroke 4WD CCLB (To replace stolen one) Hook em Horns!!! |
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#17 | |
Registered User
Join Date: Jul 2010
Location: Las Vegas, Nevada
Posts: 43
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Re: 1 electric fan enough?
Quote:
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#18 |
Registered User
Join Date: Jul 2011
Location: El Campo, Tx
Posts: 1,246
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Re: 1 electric fan enough?
So reading around the net and supposedly a stock mechanical fan only moves about 800 CFM. My question now is does anyone have an electric fan like the Cherokee fan on a big block with long water pump? Does it fit? I hear they are a really tight fit. From what I can tell there is only 10.5 inches of clearance from the front of block to back of radiator and the long water pump is around 7.5 inches long. Doesn't give much room!!!!!
Posted via Mobile Device
__________________
72 Chevy blue LWB, 99% original Oklahoma truck, 28,000 miles 72 Chevy SWB: http://67-72chevytrucks.com/vboard/s...d.php?t=486626 (Attempt/Mistake #2) 2003 Harley Davidson Dyna Superglide with 2007 Street Bob front end 2000 Ford F350 Powerstroke 4WD CCLB, 310,000 miles running great (STOLEN St. Patricks Day 2014 AND NEVER RECOVERED) 2002 Ford F250 Powerstroke 4WD CCLB (To replace stolen one) Hook em Horns!!! |
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#19 |
Senior Member
Join Date: Nov 2003
Location: Brookings, SD
Posts: 10,497
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Re: 1 electric fan enough?
Andy4639, that fan is a puller right? How did you get it to push the air through the radiator?
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Some people are like slinkies, they aren't good for anything, but you can't help but smile when you see one tumble down the stairs. |
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#20 |
Senior Member
Join Date: Aug 2002
Location: Valley Center KS
Posts: 3,525
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Re: 1 electric fan enough?
moparonlineparts.com has it for $56
http://www.moparonlineparts.com/part...&siteid=214954 I'm going to put in an order with summit and hope they price match this |
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#21 |
Registered User
Join Date: Jul 2011
Location: El Campo, Tx
Posts: 1,246
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Re: 1 electric fan enough?
Some on here have said that an aluminum headed engine needs to have a hotter thermostat then a iron headed one. Is that true and if so why? I have heard 195 degree thermostat!!
Posted via Mobile Device
__________________
72 Chevy blue LWB, 99% original Oklahoma truck, 28,000 miles 72 Chevy SWB: http://67-72chevytrucks.com/vboard/s...d.php?t=486626 (Attempt/Mistake #2) 2003 Harley Davidson Dyna Superglide with 2007 Street Bob front end 2000 Ford F350 Powerstroke 4WD CCLB, 310,000 miles running great (STOLEN St. Patricks Day 2014 AND NEVER RECOVERED) 2002 Ford F250 Powerstroke 4WD CCLB (To replace stolen one) Hook em Horns!!! |
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#22 |
Registered User
Join Date: May 2008
Location: Mesa, AZ
Posts: 281
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Re: 1 electric fan enough?
I've never heard that engine temp is set differently for aluminum heads vs. iron. However, I do know that to improve thermal efficiency and improve combustion hotter is better. (Of course, not to the point that engine damage occurs!)
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I own 3 classic vehicles. 1971 LWB C10 Deluxe. 1974 VW Super Beetle. 1971 VW Fastback. The C10 and the Super Beetle run, the Fastback is just not there yet! Please visit my Super Beetle and Fastback profile on TheSamba. |
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