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#439951 - 05/16/07 04:15 AM Re: Electric Fan FAQ [Re: montemarc]  
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baaboo Offline
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Racine, WI
The two in the probe are for the ground, since you can't count on one there. Ground one and use the other as the positive. You can't use the stock sensor though, since those close at 260 or so.


1987 Aerocoupe, 383 Super Ram and 20-gallon custom aluminum tank. Car retired (for now) from open road racing, but I'm not.
#441449 - 05/20/07 11:15 PM Re: Electric Fan FAQ [Re: ]  
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jac1599 Offline
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Bartlesville, OK
Quick question. On my TPI motor, is there a spot to put a thread in temp switch other than the one in my block that goes to my gauge?


1987 SS, 355 TPI and a work in progress
#441452 - 05/20/07 11:24 PM Re: Electric Fan FAQ [Re: ]  
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montemarc Offline
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Ashtabula, Ohio
Thanks baaboo1 but that wont work. I tried everything I could think of. This is what I currently have, the only way I can use my fans is if I turn on the override switch. Since the probe wouldn't turn the fans on at a reasonable temp. I bought a screw in sensor for my head. This sensor only has one prong unlike the probe which has two. I have tried everything I could think of to make this work, however it still doesnt. Any help would be appreciated. dunno marc


Last edited by Z65_Paul; 02/17/13 09:06 PM. Reason: Removed broken image links
#441889 - 05/22/07 05:27 AM Re: Electric Fan FAQ [Re: montemarc]  
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baaboo Offline
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baaboo  Offline
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Racine, WI
So you're saying that you connected the brown wire to it, have everything grounded good, but it still won't come on? jac, either the thermo housing or maybe radiator if you have an unused hole.


1987 Aerocoupe, 383 Super Ram and 20-gallon custom aluminum tank. Car retired (for now) from open road racing, but I'm not.
#441901 - 05/22/07 08:04 AM Re: Electric Fan FAQ [Re: ]  
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montemarc Offline
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montemarc  Offline
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Ashtabula, Ohio
Yes, I've tried the brown and the yellow and still nothing. I could use the probe if it would turn the fans on earlier than over 215F. I tested the probe by setting it on the header and the fans came on, then removed it and let it cool and they turned off. All I want is for the fans to come on automatically so I dont have to hit the switch manually. I would really like to get the new sensor to work with this setup, I wonder if it gets wired differently with this type of sensor? I appreciate all the help baaboo1, thanks. I just dont know what to do next. marc

#442169 - 05/23/07 05:15 AM Re: Electric Fan FAQ [Re: montemarc]  
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baaboo Offline
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Racine, WI
According to the instructions, there should be two leads on the thermo switch. One from the ignition, and one to the control unit. I only see the one lead though. Could you have the wrong switch? I don't know if you have the AC wire hooked up, but leave it off for now until you get it working so that voltage won't mess up your tests.


1987 Aerocoupe, 383 Super Ram and 20-gallon custom aluminum tank. Car retired (for now) from open road racing, but I'm not.
#442173 - 05/23/07 08:10 AM Re: Electric Fan FAQ [Re: ]  
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montemarc Offline
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Ashtabula, Ohio
Yes, there are two leads on the probe, but I was trying to switch to a different sensor. The new sensor I was trying to use is a screw in type and only has a place for 1 wire. I cant find a way to make this setup work with the new sensor. I dont understand relays very well. I was hoping someone who had a screw in single wire sensor could tell me if I could simply rewire everything to make it work. \:> sorry if i'm confusing you. Oh, and i'm not currently using Ac. So the green wire is going to the override switch. Thanks, marc

#443109 - 05/26/07 04:39 AM Re: Electric Fan FAQ [Re: montemarc]  
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baaboo Offline
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Racine, WI
Ok, that's the problem then. You need the part they designed this around. I'd hate to try to refigure the engineers. Why not put the probe in the radiator as normal?


1987 Aerocoupe, 383 Super Ram and 20-gallon custom aluminum tank. Car retired (for now) from open road racing, but I'm not.
#443561 - 05/28/07 02:56 PM Re: Electric Fan FAQ [Re: ]  
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jac1599 Offline
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Bartlesville, OK
Here is an excellent wiring diagram that works very well. I used the bottom set up for my Ford Taurus two speed fan (1500/2750 CFM). It is from S10blazers.com


Last edited by Z65_Paul; 02/17/13 09:06 PM. Reason: Removed broken image link

1987 SS, 355 TPI and a work in progress
#443562 - 05/28/07 03:00 PM Re: Electric Fan FAQ [Re: lazygearhead]  
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jac1599 Offline
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Bartlesville, OK
Oh, and en excellent 12v switched power source is the C/H (choke heater) fuse. This was apparently only used in V6 Montes, but GM put the fuse and power feed in every car....I say this because I ran the switched line to my wiper motor, and now it doesn't work. So I searched my Hayne's manual and GM electrical manual and found the C/H fuse...everything works like a dream, other than my god awful squeaky belts!


1987 SS, 355 TPI and a work in progress
#443810 - 05/29/07 02:52 AM Re: Electric Fan FAQ [Re: jac1599]  
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strokedandslammed Offline
My First Post!
strokedandslammed  Offline
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Posts: 1
Monrovia, Md
u can also buy the painless wiring kit for the electir fan....it works amazing with no problems...it comes w/ everything u need and its pretty cheap

#460088 - 07/16/07 12:34 PM Re: Electric Fan FAQ [Re: strokedandslammed]  
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jac1599 Offline
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Bartlesville, OK
Just to let you all know, SMM no longer "has access" the ramcharger fans.


1987 SS, 355 TPI and a work in progress
#460172 - 07/16/07 05:42 PM Re: Electric Fan FAQ [Re: jac1599]  
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jac1599 Offline
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Bartlesville, OK
Ok, if you want the fans you have to call Mike (protouraero) @ 219-926-9793 to order...If you order from the website, your order will sit for a week and then when you make contact to check on it, you are told to call....and they your money will be refunded ASAP. So, save yourself some time and just call Mike or his wife and tell them you are a member of this board.


1987 SS, 355 TPI and a work in progress
#460983 - 07/18/07 07:52 PM Re: Electric Fan FAQ [Re: jac1599]  
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jac1599 Offline
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Bartlesville, OK
Just an update: Mike and his wife are great to deal with, so just be sure you call them. Tell them you are a member and it will save you some cash.

DO NOT USE THE WEBSITE http://www.gosmm.com !! Mike does not have access to this website, and the current proprietor of the website does not have a contract to sell these fans. So please ignore any posts where you saw that website. Mike is an authorized vendor here, and good to deal with.


1987 SS, 355 TPI and a work in progress
#472317 - 08/19/07 01:44 AM Re: Electric Fan FAQ [Re: jac1599]  
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SCOTTSS Offline
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Summerville SC
I picked up a fan assembly for a Ford Focus that has two fans in an integrated shroud and built in temp sensor to increase the fan speed. The only thing I had to do is trim off the tabs on each end. The only drawback I guess is that it has to be mounted using the plastic mount kit that passes thru the radiator fins. I paid $100 off of Ebay for a brand new one.

#472518 - 08/19/07 04:01 PM Re: Electric Fan FAQ [Re: SCOTTSS]  
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87_lt1_ss Offline
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atlanta
Here are a couple pic's of my Park Avenue fan set-up

Notice the factory fan relays in the top left corner of the pic. Except for my messy wiring it almost looks sorta factory and using factory GM relays means if one fails any parts store will have replacements

Here is the top plate from the same car.
IIRC I cut about three inches out of it just on the pass. side of the hood latch. I still need to epoxy the the split and clean it up good

Last edited by Z65_Paul; 02/17/13 09:07 PM. Reason: Removed broken image links

87 MCSS
79 Olds Cutlass
74 Super Beetle
08 Toyota Tacoma Double Cab
#484256 - 09/19/07 01:42 PM Re: Electric Fan FAQ [Re: Klaymen]  
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Posts: 184
Leroy Offline
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Orlando, Fl
Ok, I have listened to you guys & been very greatful for all your help. I finally listened to your advise & purchased Dodge Intrepid fans, $60.00 @ local u-pull it. I figured on using radiator mounts from an 80's model chevy p/u, & purchased the fan control module from Be Cool. By far the Best $269.00 I've evr spent for a project! They work awesome!!!! I was able to program when the fans turn on & @ what temp they increase in speed, temp never gets over 210, most of the time running around 190. Ac seems to work alittle better. The great thing about Be Cools kit is that it's all plug & play, all I've had to do so far is trim wiring to make it look neat. I did run into 1 problem w/ there diagram, But was able to figure that out easily. Took about 3 hrs., including fabrication & cleaning up. Amp draw isn't to bad, but I would recommend alittle higher amp'd alt. Very satisfied w/ whole project. once I get all the final touches done I'll attemp to post pics.


"Riding up & down broadway on my old stud LEROY. All the Girls say, Save a Horse, Ride a Cowboy!"
#520161 - 01/09/08 04:57 AM Re: Electric Fan FAQ [Re: Leroy]  
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mcss85 Offline
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LI NY
sorry for the dumb question but, what year cutlass would i fine the radiator top plate be found on?

and also with the flexalite setup can you use a temp probe that screws into the intake rather than a probe?
thanks

Last edited by mcss85; 01/09/08 05:08 AM.
#534800 - 02/19/08 03:43 AM Re: Electric Fan FAQ [Re: MonteSSman42]  
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SS402 Offline
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Beaverton, Oregon
A diode would have solved your problem with the run-on..


George
Monte, Gone but not forgotten

The More I Learn About Dogs
The Less I Like About People
#546837 - 03/19/08 04:32 PM Re: Electric Fan FAQ [Re: SS402]  
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Posts: 277
TTYPENSSRIDER Offline
10+ Year
TTYPENSSRIDER  Offline
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CALIFORNIA
can I use the electric fan from a turbo regal?
will it pull enough air or is a dual fan needed for a small block v8.
I have the stok radiator now but within a year ill upgrade to an f body radiator.

#546845 - 03/19/08 05:08 PM Re: Electric Fan FAQ [Re: TTYPENSSRIDER]  
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85_SS Offline
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Ontario, Canada
I use a single large diameter fan from a Dodge Caravan - fits the rad like a glove and cools my mild 350 no problem with a stock 3-core rad.


[Linked Image]
1985 Chevrolet Monte Carlo SS
5.7 LITRE / TES Headers / SShaker Hood / WC T-5 5-Speed
1970 Pontiac GTO
Orbit Orange Judge Re-creation / YZ RAIII 400 / M21 4-Speed
#546883 - 03/19/08 07:33 PM Re: Electric Fan FAQ [Re: 85_SS]  
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TTYPENSSRIDER Offline
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CALIFORNIA
what year caravan did you pull it from?

#546946 - 03/19/08 10:55 PM Re: Electric Fan FAQ [Re: TTYPENSSRIDER]  
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85_SS Offline
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85_SS  Offline
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Ontario, Canada
Not sure what it's from as I didn't pull it - I picked it up at a flea market for next to nothing. There was a sticker on it, and I believe it was a mid-late 90's model. They are the same for several years there.


[Linked Image]
1985 Chevrolet Monte Carlo SS
5.7 LITRE / TES Headers / SShaker Hood / WC T-5 5-Speed
1970 Pontiac GTO
Orbit Orange Judge Re-creation / YZ RAIII 400 / M21 4-Speed
#548012 - 03/22/08 06:17 PM Re: Electric Fan FAQ [Re: 85_SS]  
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TTYPENSSRIDER Offline
10+ Year
TTYPENSSRIDER  Offline
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CALIFORNIA
I guess the cooling fan from the buick gn's arnt that good.

Last edited by TTYPENSSRIDER; 03/22/08 06:22 PM.
#553872 - 04/06/08 09:26 PM Re: Electric Fan FAQ [Re: TTYPENSSRIDER]  
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mmc427ss Offline
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Pottstown, Pa
Guess I'll throw my 2 cents into this thread.

I purchased a SPAL dual 11" fan several years ago and waited to install it until I found a controller that I thought had all the capabilities I wanted in it. A SPAL PWM controller seemed to have what I was looking for. It doesn't have a capillary tube stuck in the radiator, it's weatherproof, I wanted to have the fans turn on with the A/C, wanted the on/off points programmable. http://www.spal-usa.com/fans/automated/tech_sheets/PWMIns.pdf

Because the stock Monte SS temp gauge is difficult to tell what a 180 degrees temp is, I set my operating temps using a Fluke VOM that has a temp probe attachment. Temporarliy the Fluke's temp probe is inserted through the thermostat housing hose opening, through a 5/32" hole I drilled in the thermostat and into the cavity below the thermostat. Here it read exactly the temp the thermostat sees. The temp probe lead is bent around the end of the thermostat housing, a little RTV applied and the upper rad hose installed, no leaks. Now I can read accurately the intake manifold temp at the thermostat to set up the PWM. The VOM can be plugged into it at anytime to read the temp.

The SPAL PWM is a weather-proof pulse width modulation controller which turns on the primary fan to full speed for 5 seconds then back to 1/2 speed when the temp reach the high temp setting, 195 in my case. Then if it doesn't bring the temp down it will increase the speed of the primary fan gradually to about 90%. If the temp still doesn't start to drop the controller will turn on the secondary fan and run both at 100% until the temp reaches the set low temp, 178. The high and low temps are programmable on the touch pad of the controller and there are LEDs to indicate, LOW temp set point, HIGH temp set point and A/C ON. The controller has an A/C input feed which will turn both fans on when the A/C is powered on. I looked at several different fan controller and this is the most versatile. The Dakota Digital has great features but isn't weather-proof and has no A/C input but is easily programmed along with fan run-on after the motor shuts off.

Already having a 4 core copper/brass Superior radiator I installed the "GN upper rad support" as they are called. Fabricated an alum upper and lower bracket to attach the SPAL dual to the rad support on the bottom and to the upper GN support.

Mounted the SPAL PWM in front of the battery on the rad support, the most logical place to keep it out of the weather and be convienient to the fans and the battery. Using all GM Metri-pack wire coonectors, fuses, relays, wire and looms gives the install the original GM look.

Initally the controller was using the stock temp gauge sender to get a temp reading for the controller. This worked fine when the 305 was still in the car for two years. When the new motor was installed I suspected for some reason I was getting voltage backfeed into the temp circuit causing spiking of the temp gauge. So I installed a TS3 temp sensor in the thermostat housing per a SPAL tech. This caused a problem getting the fans to shut off at my preset low temp. A call to the SPAL engineer who designed the PWM said I wasn't getting a large enough voltage drop between the low and high fan speeds I had preset, I would need to have a larger ON/OFF fan temp setting differential or change the temp sendor that had a higher resistance. A TX13 sender is 6K ohms, TX3 was 3K. Now I have a .4dcv differential which the PWM can now easily handle the 178-198 setting I have.

The PWM would turn both fans on anytime the A/C was on, which includes defrost. To make the PWM not see that the A/C is on and not turn the fans on, a high pressure switch was added. This switch is in series with the A/C ON wire to the PWM. The switch is normally open when pressure in the high pressure line is at it's lower limits, such as cruising at high speed or having the defrost ON on a cold day, no need to run the fans. Haven't charged the R12 A/C system since the motor install but have two different pressure switches to substitute and see which works best. Typically the new cars control the fans the same way, using a high pressure cutout switch to turn them off when the high pressure is in it's low range.

Also added a manual ON/OFF switch with a lighted ON position in the console so I can override the PWM and run both fans on command. Again using the PWM's A/C input I feed 12vdc to this line which turns the fans on regardless of temp. To prevent voltage backfeed to this circuit, diodes needed to be installed in series on this circuit and the A/C feed circuit. This prevents the light in the On/OFF switch from lighting when the A/C is turned on and the other diode prevents the A/C being turned on when the overide switch is activated.

Lots of digging in the yards for GM wire harness pieces, trips to my dealer to get new ends for the Metripack connectors, several calls to the SPAL engineer, lots of fabricating and lots of hours. This system works great now with loads of versatility. With an aftermarket guage instead of the stock gauge it would be easily programmable.

As I stated at the start, just needed to add my 2 cents, still to cold outside to Spring clean the yard.
Bob

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