Is this a fair radiator?
Someone said, "no fan shroud needed"?? Wow! I must be old and *** backwards!?
I said that. If the fan is within an inch and a half or so, you don’t need it. Some of the aftermarket shrouds are straight junk. The OE’s used them because the fan was too far from the radiator to be effective at idle and low speed.
I can’t remember where I read it, may have been an ASE paper or maybe it was some engineering testing, but a friend let me read this paper and it was about how a fan shroud can cause the air to stack up at the radiator when the road speed was high enough, the RPM was high enough and the shape of the shroud.
IIRC a short, blunt shroud was about useless. It would stack air up very quickly. It never really changed the coolant temp but, it did act like a giant air dam because the air can’t get past the fan and the shroud.
That’s why I get the fan as close to the radiator as I can and skip the shroud. The only real issue without one is getting caught in the fan. I need to fabricate something around the top of the fan for that, but no shroud for me if I can avoid it.
