'87 4kq afterrun fan. Why???

["James Marriott" <marriott@lesbois.com>]

Greetings,

Warmer weather returneth. Bugs splatted on the windshield, Hakkas stashed
in the corner of the garage, the fan runs for 60 seconds about three
minutes after I shut off the car.

Can anyone tell me where the turbo and afterrun pump are? Is it prepping
for a Le Mans start up Pike's Peak? What is this for, or is Bosch (relay)
getting a cut from Interstate/Exide?

tia
James, looking for auto-x in spudland