How close, is to close for rad fans to water pump pulley space
I use those push through zip ties with a little padding.
Back in the day, (1980's) i mounted electric fans with the supplied zip ties like yours. worked for years BUT it did eventually eat through the tube from contact and vibration.
On a side note:
IMHO the biggest difference with factory shrouds and custom or home made is flow. Go get a box fan and see how much air moves with a piece of cardboard directly on the grill covering 1/2 of the fan, then move the cardboard 2 inch or more away from the grill.
just get some flat stock and make some brackets that bolt to the factory radiator mount bolts and don't touch the Rad.
the fans do not need to be significantly close to the rad, stock mechanical fans usually sit about an inch or so away, with or without a shroud they cool just fine.
I have had both electric and mechanical and never had a problem with cooling and never had a shroud.
Just My Opinion!
