Electric fan upgrade
#61
Race Director
Member Since: Apr 2007
Location: South Western Ontario
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Wiring with 3 relays to give a high/low operation would be even better than running each fan separately. Low will often be enough cooling and it'll be much quieter when in low.
You may want to use a PWM controller to get variable speed which only runs the fans as fast as necessary both making them quieter and last longer.
Last edited by lionelhutz; 07-13-2018 at 12:38 PM.
#62
Burning Brakes
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2017 C3 of Year Finalist
Can someone post the pictures of the wiring done for electric fan? Which alternator to get if you are doing an electric fan swap? Also from which year Lincoln MK VIII is the fan that is so widely used in C3?
Last edited by Primoz; 07-14-2018 at 04:57 AM.
#63
Le Mans Master
Here is my fan install thread with pics of the fan, wiring, alternator.
https://www.corvetteforum.com/forums...n-install.html
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Primoz (07-14-2018)
#64
Burning Brakes
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Location: Slovenia, EU
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2017 C3 of Year Finalist
Any of the Lincoln MKVIII fans will work fine, as long as they are truly Lincoln fans and not the Taurus fans, which look similar but blade shape is different.** Some Lincoln fans are rumored to be 2 speed fans but...I have two of these and both are single speed.. The one on my car is a 1993 with probably a couple hundred thousand miles on it by now, still going strong.* You will need a 50 amp relay to run the fan, 8 ga wiring and a good alternator.* I run a factory style CS-144 (140 amp) and it runs everything in my car fine and holds 13.8v @ idle with full electric load, full heat soak, in the middle of summer.
Here is my fan install thread with pics of the fan, wiring, alternator.
https://www.corvetteforum.com/forums...n-install.html
Here is my fan install thread with pics of the fan, wiring, alternator.
https://www.corvetteforum.com/forums...n-install.html
#65
Le Mans Master
Here is what the Lincoln fan looks like.* There are many others that are close in resemblance but, pay attention to the blade shape and make sure they look like this.
There is a couple on ebay right now for around $140 usd.
*
Last edited by ajrothm; 07-14-2018 at 09:05 AM.
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Primoz (07-14-2018)
#67
Drifting
I'm going to use the BMW duel temp sensor but am having trouble finding the 1/2 mip x 14mm female hex bushing. HELP!
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gjohnson (07-08-2019)
#69
Race Director
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gjohnson (07-08-2019)
#71
Race Director
I'll give him a pigtail!!! Unfortunately most I've come across need new leads but those are easily purchased. 90 degree pigtails are tough to find.
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gjohnson (07-08-2019)
#73
Drifting
Thanks to all that replied! This forum is awesome!!I have been helped more than I can remember.Ive found the sensor/pigtail w/leads after long search online.
#74
Le Mans Master
I had the same problem finding that particular BMW part. There are two! One is a 'temperature sensor'. You don't want that one. The second is the Cooling Fan Switch! That's the one, I finally stumbled on. It mounts in the side of the radiator on a BMW, versus the engine for the temp sensor.
#75
Drifting
I had the same problem finding that particular BMW part. There are two! One is a 'temperature sensor'. You don't want that one. The second is the Cooling Fan Switch! That's the one, I finally stumbled on. It mounts in the side of the radiator on a BMW, versus the engine for the temp sensor.
if its the right one
Last edited by gjohnson; 07-09-2019 at 05:54 PM.
#76
Safety Car
On my 1968 C3 BB Convertible I have the dual 11" Spal fans in their shroud and have had only one complaint about them. The little rubber flaps they use are a PIA to replace. I have had to replace mine twice now and am not real excited about doing it again. It is VERY difficult with the radiator in place so I have to pull the radiator out with fans attached and then replace the little rubber flaps.
I am using the DeRale PWM fan controller and I love that thing! It works beautifully and was easy to install.
The SPAL fans are built to be used in OEM applications and will last a long time. What is the best fan controller for a long term controller? I have not had great experiences with some of the units I have tried on my 1968 C3. The previous PWM controller went up in smoke after about 2 hours of running, I was not impressed after spending hundreds of dollars on the controller and the time wiring it in. After one failure I now have a backup set of wires to allow me to hot wire the fans "on" if needed after a controller failure. The fans have not let me down so far, the controllers have not been built to the same level of quality.
I just saw a new fan controller and it is made and sold as a SPAL unit. That may be my next controller if the DeRale has any issues.
Tom, What are your thought about a Cooling fan controller? You are the expert and we need experienced experts to tell us which controller is the best in YOUR opinion! Thanks for helping us out here Tom, Your vast knowledge helps us regularly. Your are respected and appreciated as an "expert" in your field!
Best regards,
Chris
I am using the DeRale PWM fan controller and I love that thing! It works beautifully and was easy to install.
The SPAL fans are built to be used in OEM applications and will last a long time. What is the best fan controller for a long term controller? I have not had great experiences with some of the units I have tried on my 1968 C3. The previous PWM controller went up in smoke after about 2 hours of running, I was not impressed after spending hundreds of dollars on the controller and the time wiring it in. After one failure I now have a backup set of wires to allow me to hot wire the fans "on" if needed after a controller failure. The fans have not let me down so far, the controllers have not been built to the same level of quality.
I just saw a new fan controller and it is made and sold as a SPAL unit. That may be my next controller if the DeRale has any issues.
Tom, What are your thought about a Cooling fan controller? You are the expert and we need experienced experts to tell us which controller is the best in YOUR opinion! Thanks for helping us out here Tom, Your vast knowledge helps us regularly. Your are respected and appreciated as an "expert" in your field!
Best regards,
Chris
#77
Drifting
On my 1968 C3 BB Convertible I have the dual 11" Spal fans in their shroud and have had only one complaint about them. The little rubber flaps they use are a PIA to replace. I have had to replace mine twice now and am not real excited about doing it again. It is VERY difficult with the radiator in place so I have to pull the radiator out with fans attached and then replace the little rubber flaps.
I am using the DeRale PWM fan controller and I love that thing! It works beautifully and was easy to install.
The SPAL fans are built to be used in OEM applications and will last a long time. What is the best fan controller for a long term controller? I have not had great experiences with some of the units I have tried on my 1968 C3. The previous PWM controller went up in smoke after about 2 hours of running, I was not impressed after spending hundreds of dollars on the controller and the time wiring it in. After one failure I now have a backup set of wires to allow me to hot wire the fans "on" if needed after a controller failure. The fans have not let me down so far, the controllers have not been built to the same level of quality.
I just saw a new fan controller and it is made and sold as a SPAL unit. That may be my next controller if the DeRale has any issues.
Tom, What are your thought about a Cooling fan controller? You are the expert and we need experienced experts to tell us which controller is the best in YOUR opinion! Thanks for helping us out here Tom, Your vast knowledge helps us regularly. Your are respected and appreciated as an "expert" in your field!
Best regards,
Chris
I am using the DeRale PWM fan controller and I love that thing! It works beautifully and was easy to install.
The SPAL fans are built to be used in OEM applications and will last a long time. What is the best fan controller for a long term controller? I have not had great experiences with some of the units I have tried on my 1968 C3. The previous PWM controller went up in smoke after about 2 hours of running, I was not impressed after spending hundreds of dollars on the controller and the time wiring it in. After one failure I now have a backup set of wires to allow me to hot wire the fans "on" if needed after a controller failure. The fans have not let me down so far, the controllers have not been built to the same level of quality.
I just saw a new fan controller and it is made and sold as a SPAL unit. That may be my next controller if the DeRale has any issues.
Tom, What are your thought about a Cooling fan controller? You are the expert and we need experienced experts to tell us which controller is the best in YOUR opinion! Thanks for helping us out here Tom, Your vast knowledge helps us regularly. Your are respected and appreciated as an "expert" in your field!
Best regards,
Chris
https://www.corvetteforum.com/forums...oft-start.html
#78
Le Mans Master
That is the right one. Glad you found the part number, as I have it now as a reference. When I got mine, I simply asked the guy behind the counter for the cooling fan switch (or temp sensor) with the right degree range. Good one and thanks!
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gjohnson (07-10-2019)