Mk3 supra radiator fans

2fast4u · 04-24-2012, 09:02 PM

Hello I've got a 1990 Toyota supra turbo. It's got the 7mgte motor. I was wondering when I bought the car it came with some fans that the guy took out . These fanshave wires on them and when I researched it came out that it was the radiator fans. But I've also got another fan that runs on a belt now I'm confused because the cars got aluminum radiator and those fans with the electrical connectors don't fit on between the fan on the belt and radiator what should I do

pandrade · 04-24-2012, 10:55 PM

the 7mgte came whith a mechanical fan but also ( depending on the year) one or two electrical fans on the drivers side of the radiator. i myself installed a aluminum road raceing radiator for cheap insurance agenst overheating at events. i would reinstall the oe fans if you have some lying around

Quote:

don't fit on between the fan on the belt and radiator what should I do

i dont quite get what your asking. did the guy befor you butcher the oe conectors and now you cant use them?

cre · 04-24-2012, 11:18 PM

Please post a couple pictures. I don't understand what you're saying at all.

All 7M's had a mechanical primary (white plactic blades). All had a small 6 or 7 inch aux electric fan in the upper left corner of the radiator. Models '89 and later had a SECOND 6 or 7 inch aux fan on the bottom left below the other aux fan. THEN ALL GTEs have a 10 or 12 inch assist fan between the A/C condenser and the radiator (hidden).

2fast4u · 04-25-2012, 06:03 PM

there is black fan cover on the big fan that connects to the belts and to the water pump pulley. what would this black fan cover be called. do i need it or not? thanks for the help

MJG · 04-25-2012, 06:43 PM

As CRE requested, please post some pictures.

Green7mgte · 04-25-2012, 07:05 PM

ok let me decipher... maybe

when you obtained your car you had a new aluminum rad put in.. you have two small fans that are not attached and are causing you concern. you also have a black rounded piece of plastic covering the radiator.. yes?

k.
those two small fans are auxiliary rad cooling fans.. there thermostat controlled (hence the wires.) and kick on when the car reaches a certain temp. are they needed..? They don't hurt.. its always good to have a cooled radiator.
The black piece of plastic covering your rad is called a fan shroud. It directs the air produced by the mechanical fan. (the one attached by pulleys. Hence mechanical (no wires) ) and this is needed to assure proper air flow in the engine bay.. DO you absolutely need it, no. but will see an increase in engine bay temp.

The reason the mechanic took it out is most likely fitting issues due to the new radiator. The increase in cooling you will see by installing them again might be marginal with your aluminum radiator. but if you got room to slide those puppys in there they connect to little connectors on the bottom someplace. give it a check, its been awhile since ive been under my supra.

hope this helped.

OH your shroud should either have one or two openings on the drive side.. those are were the small fans go in.

Green7mgte · 04-25-2012, 07:09 PM

Quote:

Originally Posted by cre

All 7M's had a mechanical primary (white plactic blades). All had a small 6 or 7 inch aux electric fan in the upper left corner of the radiator. Models '89 and later had a SECOND 6 or 7 inch aux fan on the bottom left below the other aux fan. THEN ALL GTEs have a 10 or 12 inch assist fan between the A/C condenser and the radiator (hidden).

I actually forgot how many damn fans we had.

i gots me 3.. BOOYAH!

cre · 04-26-2012, 12:05 AM

The fan shroud helps most at idle and low speeds where the air isn't being pressed through the radiator. While at idle or moving slowly it's easier for the fan to pull in surrounding air and recirculate a large amount of the hot air in the engine bay. While in a car that is in excellent condition this may not be a problem on a car whose cooling system is running poorly this could be enough to cause a significant overheating problem and may lead to damage. Actually, there are many cars where the fan shroud is an absolute necessity no matter how good the condition of the car.

Yes, the Supra has a lot of fans.

2fast4u · 04-26-2012, 03:12 AM

hi attached a picture whats the black thing called that i have circled becuase my car doesnt have one and is it neccessary to have one?

btwilson86 · 04-26-2012, 03:55 AM

That's the fan shroud. See posts above for explanation of why you should have one

04-24-2012, 09:02 PM	#1
2fast4u 3" Exhaust Join Date: Mar 2012 Location: kent washington Posts: 57 Blog Entries: 1	Mk3 supra radiator fans Hello I've got a 1990 Toyota supra turbo. It's got the 7mgte motor. I was wondering when I bought the car it came with some fans that the guy took out . These fanshave wires on them and when I researched it came out that it was the radiator fans. But I've also got another fan that runs on a belt now I'm confused because the cars got aluminum radiator and those fans with the electrical connectors don't fit on between the fan on the belt and radiator what should I do __________________ 2 fast 4 u

04-24-2012, 11:18 PM	#3
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Please post a couple pictures. I don't understand what you're saying at all. All 7M's had a mechanical primary (white plactic blades). All had a small 6 or 7 inch aux electric fan in the upper left corner of the radiator. Models '89 and later had a SECOND 6 or 7 inch aux fan on the bottom left below the other aux fan. THEN ALL GTEs have a 10 or 12 inch assist fan between the A/C condenser and the radiator (hidden). __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

04-25-2012, 06:03 PM	#4
2fast4u 3" Exhaust Join Date: Mar 2012 Location: kent washington Posts: 57 Blog Entries: 1	mk3 supra fans there is black fan cover on the big fan that connects to the belts and to the water pump pulley. what would this black fan cover be called. do i need it or not? thanks for the help __________________ 2 fast 4 u

04-25-2012, 07:05 PM	#6
Green7mgte Supra Forum Moderator Join Date: Nov 2009 Location: Green-Ohio Posts: 1,297	ok let me decipher... maybe when you obtained your car you had a new aluminum rad put in.. you have two small fans that are not attached and are causing you concern. you also have a black rounded piece of plastic covering the radiator.. yes? k. those two small fans are auxiliary rad cooling fans.. there thermostat controlled (hence the wires.) and kick on when the car reaches a certain temp. are they needed..? They don't hurt.. its always good to have a cooled radiator. The black piece of plastic covering your rad is called a fan shroud. It directs the air produced by the mechanical fan. (the one attached by pulleys. Hence mechanical (no wires) ) and this is needed to assure proper air flow in the engine bay.. DO you absolutely need it, no. but will see an increase in engine bay temp. The reason the mechanic took it out is most likely fitting issues due to the new radiator. The increase in cooling you will see by installing them again might be marginal with your aluminum radiator. but if you got room to slide those puppys in there they connect to little connectors on the bottom someplace. give it a check, its been awhile since ive been under my supra. hope this helped. OH your shroud should either have one or two openings on the drive side.. those are were the small fans go in. __________________ 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines : Last edited by Green7mgte; 04-25-2012 at 07:07 PM.

04-26-2012, 12:05 AM	#8
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	The fan shroud helps most at idle and low speeds where the air isn't being pressed through the radiator. While at idle or moving slowly it's easier for the fan to pull in surrounding air and recirculate a large amount of the hot air in the engine bay. While in a car that is in excellent condition this may not be a problem on a car whose cooling system is running poorly this could be enough to cause a significant overheating problem and may lead to damage. Actually, there are many cars where the fan shroud is an absolute necessity no matter how good the condition of the car. Yes, the Supra has a lot of fans. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

04-25-2012, 06:43 PM	#5
MJG 3" Exhaust Join Date: Mar 2010 Location: Washington State Posts: 125	As CRE requested, please post some pictures.

04-26-2012, 03:12 AM	#9
2fast4u 3" Exhaust Join Date: Mar 2012 Location: kent washington Posts: 57 Blog Entries: 1	mk3 supra fan hi attached a picture whats the black thing called that i have circled becuase my car doesnt have one and is it neccessary to have one? Attached Thumbnails __________________ 2 fast 4 u

04-26-2012, 03:55 AM	#10
btwilson86 Super Moderator Join Date: May 2007 Location: Billings, Montana Posts: 1,034	That's the fan shroud. See posts above for explanation of why you should have one __________________ 1989 7MGTE R154 Targa Top White Package w/Blue Interior Driftmotion 57trim CT26, Upgraded Intercooler, 2.25" Hard Pipes, 3" Turbo Back Exhaust with Test Pipe, HKS VPC w/GM 3 bar MAP sensor, APEXi S-AFC, Walbro 255lph fuel pump, ProSport EVO Series Boost / Fuel Pressure / AFR gauges, Lotek a Pillar Gauge Pod, HKS Type 0 Turbo Timer, Eibach Lowering Springs, Tokico Illumina II TEMS struts, custom powder coated Motegi Racing TrakLite wheels

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