I cant get the idea out of my head that the fan blade is to small for the shroud opening. and/or not enough blade pitch The cars Ive had in the past you could really feel suction in front of the radiator at idle . This one IMO doesnt pull like I think it should/could.
Bill, I don't know what blade style of fixed fan your running, but is it possible the fan's mounting is flipped or "backwards"?,....just a thought, you never know?....I've seen it before
