Better Radiator Cooling Options (1 Viewer)

[andersonoverland]

Anyone know if there is an electric dual fan setup that will work great and cool my radiator better than stock fan for my 1991 3FE engine? I'm looking to send more air at it. The stock fan has been replaced along with clutch and its doing its job for now, but as soon as the temps hit 120 on a daily basis here, I want something better. I installed a brand new CSF radiator but I'd love to fit it with a dual fan setup like this:

Derale Cooling Products 16927 Derale High-Output Dual RAD Fan and Shroud Kits | Summit Racing - https://www.summitracing.com/parts/der-16927?seid=srese1&gclid=EAIaIQobChMI1s6H49PCjAMVRi5ECB2_xisGEAQYBCABEgL21fD_BwE

Any suggestions?

Thanks guys! Appreciate all this advice! This forum is great!

 

[aztoyman]

I don't have an 80 series but I am in AZ so I'm subscribed. I realize more air flow is better most of the time, but IDK if more air that's 120 degrees really helps.

 

[NeverFinis]

I mean, 120° is still cooler than your coolant, so heat transfer still occurs.

It is very hard to beat a mechanical fan for cooling. Most likely, you will lose CFM by replacing your mechanical fan with electric fans.

The best bet is to put a pusher fan in front of the radiator. There is an auxiliary pusher fan that can be installed.

 

[andersonoverland]

does anyone recommend a radiator for my high temps out in AZ? I had a CSF one that was brand new, but it just wasn't keeping up.

 

[BILT4ME]

does anyone recommend a radiator for my high temps out in AZ? I had a CSF one that was brand new, but it just wasn't keeping up.

Fix your fan clutch

 

[Izeloz]

I added the hood risers from Outsane, and that made a difference in how cool it ran. I also installed the auxiliary pusher fan and changed the fluid in my new Aisin green-hub fan clutch (I think I went with 10k fluid). Make sure your radiator shroud fits snug and there's no gaps. From the factory, there are foam filler pieces to seal the gaps. I found that a multi-pronged approach worked the best. We don't get as hot in UT as AZ, but we usually have at least several consecutive days of triple digits.

 

[80t0ylc]

does anyone recommend a radiator for my high temps out in AZ? I had a CSF one that was brand new, but it just wasn't keeping up.

CSF radiators are copper/brass. Aluminum radiators seem to be superior. I had a CSF on my ‘94 that wasn’t keeping up. I replaced it with a TYC aluminum off Amazon. It does much better and now I can run my AC at highway speeds when it’s really hot and I really need it.

 

[hoser]

I know the fluid activated clutch fans in the 80 can be a bit fiddly to tune. I think the new 3.5 Tundras use an electronically activated fan clutch for their engine driven fan. This could be an interesting project. Plus, you might be able to disengage the clutch fan for water crossings.

 

[aztoyman]

I no longer have lower fender wells or the original rubber side shields that Toyota built my truck with. The air comes off the fan mainly from the sides and blows right out the wheel wells. I can open my hood and not really feel heat. Is there any way to make louvered panels or vents to let all that heat out?

I swapped in a 3.4 and I'm still using my 88 22RE radiator and it doesn't run hot. It did with one of my winch bumpers but only over 65 MPH. It would slowly creep up in temp. I fixed that problem with bumper mods.

 

[andersonoverland]

Fix your fan clutch

Its brand new. All sensors and thermostat are brand new. Everything in the entire cooling system was replaced with OEM Aisin stuff.

 

[andersonoverland]

Also, I haven’t been able to find a good quality aluminum radiator for my 91 3FE, only 93 and up. Are they the same?

 

[OGBeno]

Also, I haven’t been able to find a good quality aluminum radiator for my 91 3FE, only 93 and up. Are they the same?

They are not the same.

 

[BILT4ME]

Its brand new. All sensors and thermostat are brand new. Everything in the entire cooling system was replaced with OEM Aisin stuff.

On my 96 (1FZ-FE) I installed a new Aisin fan clutch (blue hub) and my cooling problem only got a tiny bit better.
I drained the fluid in the hub (only about 30 ml) and I adjusted the clutch to start opening at 135 and added 50 ml of 15K CST silicone oil.

Now, my truck only runs 180 in winter and 187-192 in summer in the Midwest. I can hear my fan engage much more than it ever has, but all my cooling problems have disappeared. I probably went overkill on mine for the Midwest. I followed the threads on here for golls from AZ and other hot places.