[butchd88]

i installed an electric cooling fan on my 1966 mustang as a puller,looking at the fan from the engine side of the radiator the fan turns to the left,the fan pulls air with s blades curved to right and left,does anyone know which way the blade curve would be more efficient?

[66 restomod]

The fan mounted on the engine side should PULL air through the radiator/fan and into the engine compartment. If you turn the fan blade around it will try to push air the other direction which will be backwards. It might not matter with the car sitting still but as soon as you start moving, the fan will be fighting the air flow coming through the radiator and you will over heat.
If the air is being pulled through the radiator when the fan is running, it is correct

[butchd88]

thanks for the info.i got a new fan that pulls 3000c.f.m ,works great,purchased from ff dynamics nice fan,i guess you get what you pay for,the other fan i had was from pro-comp.cheap.thanks again butchd