Since it's becomming summer and my car's engine runs hot. I was wondering if a radiator really cools off the engine bay. I'd like to reduce heat soak as summer is approaching for the extra summer driving, so just wondering if a Fluidyne or any other performance radiator would make a noticeable difference or should I just get a tranny cooler and call it a day?

I'm only asking since my car runs better when cool.