Hi, the fan hub is custom due to I wanted to use a serpentine belt. I had my machinist create new holes and the hub bolts to the fan; it will have acorn nuts facing outward.
Please understand nothing is together as yet, I will start building in the next few months.
With my type IV setup I am not sure if the 11 blade is the better way. Walter did some test before he went horizontal. Where did you see the data about the number 2&4 having cooling issues on a 11 blade/ type one or IV?