porsche fans

[big fella]

iv been looking greatly into these fans and i know many hear have to (i have not read all the post so i hope im not repeating anything).
i was wondering for T1 engine not 4's. how do u do the set up with the horizontal 911 fan? is there a special mount? or wut. and how is the cooling compaired to the upright one? and do u need an external oil cooler like the upright setup?

any info or websites woudl be great