Got an electric fan for my 69. Should I set it up to be a puller or pusher or does it matter?

if you can find the clearance..set it up as a puller.In most cases,a pusher is 20% less efficient than a puller.

Mine is set up as a puller, but I'm getting ready to replace the single 16" unit with a dual fan setup because I still cant sit in traffic without overheating -- hopefully it will work -- if not, well lets just say there may be a new entry in the classified section

Definately a puller. A pusher will block the air flow coming into the radiator and somewhat defeat the purpose.

Mine is set up as a puller, but I'm getting ready to replace the single 16" unit with a dual fan setup because I still cant sit in traffic without overheating -- hopefully it will work -- if not, well lets just say there may be a new entry in the classified section

Does your fan have a shroud? If so, then something else is wrong. A shrouded 16" electric fan should be more than enough to cool a street engine @ idle.

I agree with that. Many electrics get installed without a shroud...which means your only pulling air thru the radiator where the diameter of the fan is (16"). Look at how much surface is not covered. Adding a shroud will pull air across the entire radiator and increase CFM's thru radiator. I do like the idea of the dual electric fans also, cause if one motor ever dies, at least the other is running. You can even set them up to kick in at different temps...say one kicks in at 150deg and the second at 170deg. Really all that does is limit your amp draw in the electrical for when needed.

I agree with that. Many electrics get installed without a shroud...which means your only pulling air thru the radiator where the diameter of the fan is (16"). Look at how much surface is not covered. Adding a shroud will pull air across the entire radiator and increase CFM's thru radiator. I do like the idea of the dual electric fans also, cause if one motor ever dies, at least the other is running. You can even set them up to kick in at different temps...say one kicks in at 150deg and the second at 170deg. Really all that does is limit your amp draw in the electrical for when needed.

Just to add to the above^.If you go with dual fully shrouded elec fans..make sure there is a center divider.This effectively makes them two fully shrouded units and will allow fan #1 to run alone without pulling in air thru the stationary fan#2 at curb idle speed.my spal unit has this feature..my now retired flexalites did not.The spal setup also utilizes multiple flapper valves that open with forward vehicle movement so the puller fans do not become a restriction to flow when not operating.

Just put a dual fan in a chevelle and it is a bit too loud for me. Also tried to use the sensor that straps around the hose - what a piece of sh**. May just go back to the clutch fan and shroud.

Does your fan have a shroud? If so, then something else is wrong. A shrouded 16" electric fan should be more than enough to cool a street engine @ idle.

Thanks guys -- guilty as charged for running without a shroud -- I'll try the dual fan setup -- if that doesn't work, I have a stock replacement shroud and fan that I'll use -- if that doesn't work, hmmmmm :beers: