I'm running a single electric fan on a manual toggle switch, along with a 160* T-stat. In traffic, even with the fan on, and the heat blowing, it starts creeping up towards 220* after about 5-7 minutes. I was thinking of installing a pusher fan to help get air through the radiator, would that help at all?

Eric

 

I mounted a pusher fan to the condenser. It helped the A/C a little when stopped. Didn't seem to have much efect on the radiator. At highway speed, it actually seemed to hurt a little.
I also had to remove my support rods (the rods that run diagonally in front of the condenser) to make room for the fan.

I ran this set-up for a couple of years and just recently removed the fan and re-installed the braces. With the braces re-installed, the body stiffened-up a lot. Shouldn't have taken them out to begin with, but I was desperate at the time.

Your temps (if accurate) aren't that high. I regularly run 220 in traffic with A/C on and outside temps above 90 or so.

You could always get a dual fan set-up from the junk yard.

 

I'm running Autometer guages so the temp readings *should* be right. I guess i'll just live with it if it seems as though there not getting that hot.

Eric

 

350s love to overheat with one fan. Me and my brother had a similar problem with his old car that had a 305 to 350 swap. Even a pusher didnt seem to help much because of the a/c condensor in front of the radiator ( i assume you still have a/c). Blocks a good deal of airflow. A good sugestion is to get a nice high flow fan to help pull more air through the radiator

 

A single electric fan (stock type) isn't enough. Forget the pusher fan and go to the junkyard and get a dual fan setup from a TPI car. You won't regret it.

Also, having the fan on at speeds above 35 mph is actually hurting cause the wind velocity above that speed is enough to cool the radiator...especially at 55mph or so on the highway...I would recommend putting a temperature sensor in the radiator fins (ala Permacool) to automatically turn it on and off.

That is also why a clutch fan setup is actually better than a flex fan for street use...cause the thermal clutch will disengage at a certain temp (usually on the highway)

HTH,

 

also, what about a high-flow water pump? Could be a better idea along with maybe a rad. upgrade.