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No, I haven't tried a 180 degree thermostat. My mechanic usually uses a 160 degree thermostat and sets the fans to come on around 170 or 180 degrees. Hasn't had a problem with any other car but mine...figures. Thanks for the suggestion and I will keep the 180 degree thermostat in mind.
No. I have 2 12" electric fans mounted behind the radiator with a fan shroud. These fans are set to come on at about 170 or so degrees. I also have a 16" pusher fan mounted in front of the radiator controlled manually with a toggle switch under the dash. More of an insurance policy with the 16" fan so I can turn it on only when I need it.
Wow, I would think a new 26" 3-row aluminum radiator with two shrouded 12" fans should cool that with no problem. How can you tell if your getting flow through all three cores?
Is it a cross flow or vertical flow radiator?
I am curious if the 16" fan in the front of the radiator is actually blocking airflow since you already have 2 12" fans on the other side.
Not sure about cross flow vs. vertical flow. It is a Champion radiator (http://www.championradiators.com/). The 16" fan was added when we were trying different things to solve the cooling problem. Since I had already spent the money to install it, I thought I would leave it in place and wire it to a toggle switch rather than pay to have it removed. I doubt that it is blocking enough airflow to make a differnce (not sure though). The car is parked for the winter so we will see how it does in the spring. Thanks.
A vertical flow has the radiator cap in the center and a cross flow the the cap on the far left or right. Most Mopars have the cap in the center and are vertical flow.
Update here when you get it out of hibernation.