[cameron02]

Hi Smithy,

As far as I am aware (which isnt much) the closer the fan the better. The fan will lose pulling power very rapidly as you move it further away because it will start to pull air from the engine bay instead of through the radiator as this is less resistance, this is what shrouds are designed to prevent. You could maybe look at a fan with more fins or fins with a bigger curve so they pull more air. Personally I prefer thermo fans but they are no good if you want the retro look.