I know this has been beat to death, but check this out,..
I was at the auction today and drove a beat up POS 345,000 mile 1992 F350 CC 4x4 7,3 NA Automatic. IT was a used up ole farm truck, but the motor was strong.
On the test drive I stomped on it pretty good, and the back tires just broke loose like I was driving a big block gassar. I thought why is this truck so peppy. I did it a couple of times, and was amazed at the power of the NA IDI. Keep in mind that I drove a NA IDI for a couple of years with LPG Dual Exhaust, Banks Power Pac etc, and was no where near as peppy as this one.
I poped the hood, and found that it didn't have a fan on it, just a homemade fan shroud with 2 electric fans built in with some relays, and fuses. It was actually a pretty nice job.
Would not running a fan get you THAT mutch more power? Not that I will be changing my fan out, I just thought it was interesting.
What do you think?
i think it's sad that it's 2012 and we still lack this basic info lol.
as for more pep.yeah.i felt the difference instantly and my fan clutch never even locked.
i would describe the performance of my truck when you mash the throttle on take off as going like a ***** ape.apparently matching the description of the truck you drove back in '05.
taking the fan off,my custom exhaust,and my cowl intake,all felt close to the same amount of gain.non of them "holy crap" but all easily felt.combine them,and you freed up some good power already there,pretty effortlessly.
iv been running the dual windstar ford fans for over a year now with outstanding results.
mostly required when loaded up heavy and or towing slow through towns or on the hills.
don't have quantified numbers on the power loss, but my feul consumption went from 150miles/tank to 225miles/tank when I got rid of the original fan that was locked solid when I first bought my f350
ouch.
in final comment,
i find the lack of interest in e-fan conversions for this HD cooling system the most bizarre thing in the world.
it free's up power and improves economy.it doesn't cost much unless you buy a nice controller.but some HD relays will work.
i don't get it.too many closed minds i think.
if only someone could pull a fan off on one of their dyno runs some day.perhaps that would open up a few more minds?
hmm.perhaps in another 7 years..........