My Cooling Improvement Project (hopefully)
On thing that I found is that if you do not have a hood to cowl seal that the hot under the hot air comes out from under the hood and then is sucked back trough the radiator heating it up again and the it comes back out from under the hood and is sucked back through again etc. I have a fiberglass hood on my car with a six pack scoop so my seal wasn't there. I tried a lot of things to cool my car, all of which helped but I discovered that when I had my hood off the car ran much cooler. I discovered this after my second radiator change. My car was running in the driveway with the hood off and it was sitting at 190 degrees for 15 minutes. I put the hood on so that I could take it for a test drive. I went upstairs to wash my hands and when I came down I found the temperature had risen to 210 degrees. I was totally confused when a buddy of mine put his hand under the front lip of the hood and he noticed the hot air coming out from under the lip. We used cardboard and duct tape as a diagnostic to block the air and saw some improvement. I went to Home Depot and bought foam rubber (used for window air conditioner installation) and Gorilla Glue and I glued it onto the underside of my fiberglass hood. This made a big improvement, guess that's why the factory put a rubber seal there LOL Typically my car runs 195 to 200 in traffic as opposed to 230. Give it a try it can't hurt