Re-wiring condenser fan

nickvash0104 · 09-23-2005, 01:51 AM

Anybody have any tips for bypassing the condenser fan relay and hard-wiring the fan control to a toggle switch? I found the procedures, but the information is rather sparse. All it said was to tap into the blue-white wire leading to the fan motor and to attach it to terminal 1 of a switch and terminal 2 to a ground - according to the TSRM wiring diagram and physically looking, I couldn't see a B-W wire, just a blue one.

I'm looking to run that fan to help dump heat from my car - also considering putting an aluminum radiator instead of stock - I was told a Chevy 350's radiator would work... anyone have the dimensions on the stock radiator so I can get a replacement aluminum one?

Also, another question - transmission oil coolers and engine oil coolers - do Supras have them? I think it's "yes" to the engine oil but a "no" to the tranny oil. I'm running a stock 87 NA w/ no cooling upgrades... yet.

rnoswal · 09-23-2005, 01:50 PM

Not sure about the condenser fan, but the radiator dimensions are about 19" high and 26" long. The Chevy style will work but you are going to have to remake the brackets. I heard someone mention one from Fluidyne that fits right in. I bought an aftermarket aluminum radiator from a race catalog. It was a 19 by 26 but actually it was a bit taller and just about the right width. It was a double core race radiator and was about $160.00. I had to make some brackets and go to a radiator shop and get a 90 degree elbow for the top outlet and a reducer for the bottom.

It works so well that it won't budge in the 100+ temps here in Louisiana as far as movement on the temp guage. I put a 16 inch electric fan with an adjustable cut-on thermostat.

The auto trans has the cooler built into the radiator, but no stock oil cooler for the engine. I think someone said what the oil temps for the car was in another posting, but I don't remember.

Russ

nickvash0104 · 09-25-2005, 03:52 PM

Sadly, the stock radiator does have the cooler built-in, and the Fluidyne radiator doesn't come with it; it's a push-on add-on to the radiator, but it's still a 2-row aluminum radiator, better than the stock copper / iron (whichever) radiator. For reference's sake, the stock is a 2-row or a 1-row radiator?

Also, who did you get your fan / thermostat from? I see a few retailers carrying them, but I'd like to get a good-quality fan so I don't have to keep checking my temp gauge every 2 minutes to make sure everything's running smoothly. Lastly, can someone point me in the general direction of a guide for replacing the stock belt-driven fan w/ the electric one?

rnoswal · 09-25-2005, 07:02 PM

I got mine from Advance Auto Parts and it has worked for years in many cars including my old Celica dirt track car. As for the belt, just take off the fan clutch and fan and keep the pully. Replace the studs with 4 small bolts, about half an inch long and you are set!

Russ

mrnickleye · 09-27-2005, 05:56 AM

Here ya go little fella....
Instruction come with the fan, follow them closely.

Get a thermo fan switch and relay kit to power it. Any parts house will have one, or these online stores too.

Also, I live in the Mojave Desert, comfortably HOT ! I NEVER get past 1/2 on gage, nor push coolant into bottle. A/C is always on.

I got the flex-a-lite, but next time (whenever that may be) I'll get the Mr. Gasket, CFM is better.

Get an add-on trans cooler on an automatic, period !

http://www.jegs.com/cgi-bin/ncommerc...00&prmenbr=361

http://www.jegs.com/cgi-bin/ncommerc...68&prmenbr=361

http://www.jegs.com/cgi-bin/ncommerc...14&prmenbr=361

http://store.summitracing.com/defaul...=400006+306496

http://store.summitracing.com/defaul...=400006+306496

http://www.radiatorexpress.com/defau..._source=Google

http://www.flex-a-lite.com/auto/html...l-coolers.html

nickvash0104 · 09-27-2005, 01:51 PM

Thanks for the links! =)

Last question in that regard - can I go with a larger diameter fan? Would it offer any improvement over the stock-sized diameter? I understand that the CFM rating would be higher, of course, but in order to accomodate the larger diameter, the fan shroud would have to be removed, correct?

rnoswal · 09-27-2005, 02:19 PM

I run my fan without the fan shroud, with the aftermarket radiator and it never runs hot. It is a 16" fan.

Russ

09-23-2005, 01:51 AM	#1
nickvash0104 3" Exhaust Join Date: Aug 2005 Location: Dallas, TX Posts: 78	Re-wiring condenser fan Anybody have any tips for bypassing the condenser fan relay and hard-wiring the fan control to a toggle switch? I found the procedures, but the information is rather sparse. All it said was to tap into the blue-white wire leading to the fan motor and to attach it to terminal 1 of a switch and terminal 2 to a ground - according to the TSRM wiring diagram and physically looking, I couldn't see a B-W wire, just a blue one. I'm looking to run that fan to help dump heat from my car - also considering putting an aluminum radiator instead of stock - I was told a Chevy 350's radiator would work... anyone have the dimensions on the stock radiator so I can get a replacement aluminum one? Also, another question - transmission oil coolers and engine oil coolers - do Supras have them? I think it's "yes" to the engine oil but a "no" to the tranny oil. I'm running a stock 87 NA w/ no cooling upgrades... yet. __________________ Black '87 N/A Auto

09-25-2005, 03:52 PM	#3
nickvash0104 3" Exhaust Join Date: Aug 2005 Location: Dallas, TX Posts: 78	Sadly, the stock radiator does have the cooler built-in, and the Fluidyne radiator doesn't come with it; it's a push-on add-on to the radiator, but it's still a 2-row aluminum radiator, better than the stock copper / iron (whichever) radiator. For reference's sake, the stock is a 2-row or a 1-row radiator? Also, who did you get your fan / thermostat from? I see a few retailers carrying them, but I'd like to get a good-quality fan so I don't have to keep checking my temp gauge every 2 minutes to make sure everything's running smoothly. Lastly, can someone point me in the general direction of a guide for replacing the stock belt-driven fan w/ the electric one? __________________ Black '87 N/A Auto Last edited by nickvash0104; 09-25-2005 at 03:57 PM.

09-27-2005, 01:51 PM	#6
nickvash0104 3" Exhaust Join Date: Aug 2005 Location: Dallas, TX Posts: 78	Thanks for the links! =) Last question in that regard - can I go with a larger diameter fan? Would it offer any improvement over the stock-sized diameter? I understand that the CFM rating would be higher, of course, but in order to accomodate the larger diameter, the fan shroud would have to be removed, correct? __________________ Black '87 N/A Auto

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09-23-2005, 01:50 PM	#2
rnoswal Lexus & 550's Join Date: Apr 2005 Location: Bossier City LA Posts: 556	Not sure about the condenser fan, but the radiator dimensions are about 19" high and 26" long. The Chevy style will work but you are going to have to remake the brackets. I heard someone mention one from Fluidyne that fits right in. I bought an aftermarket aluminum radiator from a race catalog. It was a 19 by 26 but actually it was a bit taller and just about the right width. It was a double core race radiator and was about $160.00. I had to make some brackets and go to a radiator shop and get a 90 degree elbow for the top outlet and a reducer for the bottom. It works so well that it won't budge in the 100+ temps here in Louisiana as far as movement on the temp guage. I put a 16 inch electric fan with an adjustable cut-on thermostat. The auto trans has the cooler built into the radiator, but no stock oil cooler for the engine. I think someone said what the oil temps for the car was in another posting, but I don't remember. Russ

09-25-2005, 07:02 PM	#4
rnoswal Lexus & 550's Join Date: Apr 2005 Location: Bossier City LA Posts: 556	I got mine from Advance Auto Parts and it has worked for years in many cars including my old Celica dirt track car. As for the belt, just take off the fan clutch and fan and keep the pully. Replace the studs with 4 small bolts, about half an inch long and you are set! Russ

09-27-2005, 05:56 AM	#5
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	Here ya go little fella.... Instruction come with the fan, follow them closely. Get a thermo fan switch and relay kit to power it. Any parts house will have one, or these online stores too. Also, I live in the Mojave Desert, comfortably HOT ! I NEVER get past 1/2 on gage, nor push coolant into bottle. A/C is always on. I got the flex-a-lite, but next time (whenever that may be) I'll get the Mr. Gasket, CFM is better. Get an add-on trans cooler on an automatic, period ! http://www.jegs.com/cgi-bin/ncommerc...00&prmenbr=361 http://www.jegs.com/cgi-bin/ncommerc...68&prmenbr=361 http://www.jegs.com/cgi-bin/ncommerc...14&prmenbr=361 http://store.summitracing.com/defaul...=400006+306496 http://store.summitracing.com/defaul...=400006+306496 http://www.radiatorexpress.com/defau..._source=Google http://www.flex-a-lite.com/auto/html...l-coolers.html

09-27-2005, 02:19 PM	#7
rnoswal Lexus & 550's Join Date: Apr 2005 Location: Bossier City LA Posts: 556	I run my fan without the fan shroud, with the aftermarket radiator and it never runs hot. It is a 16" fan. Russ