mech. fan shroud w/electric fan??? - Third Generation F-Body Message Boards

leeperryracing · 11-07-2008, 09:16 PM

I need to make my cooling system a bit more efficient....factory 305 has been loonng gone in favor of a pretty built 355ci motor. Earlier in the summer it would creep up to 230-240*(do not have an ECM) during light cruise and at idle. Here is what i have now(still from the 305 days), stock cast iron water pump, 22y-o radiator, alum. core plastic tanks, 160* t-stat and the stock single 16/17" sucky unshrouded fan. Here's what i plan on doing...i can pick up a '82-'85 mech. fan shroud this weekend, also a new replacement "350" modine rad from napa(heard good things about them) and a stewart stage2 alum. water pump. I will mount the stock single fan onto the radiator core using nylon ties and those foam spacing pads and then put the mech. fan shroud around the radiator. If that all that doesn't keep me cool, then i'll be stumped....what do you guys think??

leeperryracing · 11-08-2008, 11:27 AM

no replies?? guess everybody's staying cool with the crappy a$$ stock cooling system these cars had then

scooter500 · 11-15-2008, 10:05 PM

late night surfing here... my opinion the mech fan shroud fits a mech fan and won't help an elec fan set up; electric fans have differnt shrounds from factory. One nice thing about winter is that cooling is less of a concern

firehawkslplus · 12-07-2008, 02:49 PM

Mounting the fan direct to the core is fine; but then sinking it and surrounding it with mech. fan shroud makes the shroud a restriction. If you instead mounted the electric fan in stock opening; then it (the shroud) would have a chance to work as designed and draw air across the full core.
I was going to try this on my 87 Formula but got sandwiched in traffic at alight.