Review on Derale 16910 Dyno Cool Performance Electric by Alex Solano

This is a fan and it works perfectly. I can't say for sure that it moves the claimed CFM, but it moves air at a good rate and seems to be excellent at cooling my engine. I will say that the blades get smoother as they move away from the center. I think this is to ensure that an even amount of air is transported over all distances. However, this seems like a waste of time to me as you have to use the higher speed on the ends of the blades rather than discarding them by flattening them out. They're plastic, so if you want you can probably heat them up with a flashlight and bend them a bit. This review was written in June 2014 I will update it when this fan breaks. That way, whenever you read a review, you'll know how long the fan has been running.