mrvette

Like the revived thread from a decade ago, still have the same '89 F body rad in my '72 here in FLORIDA.....it's a plastic tank, single row aluminum about 1 inch thick....just barely fits in the '72 stock rubber mounts,

and so I put a Dual Spal setup in there, single speed is all that's necessary....and made my own mounts and complete shrouds, 100% sux through the radiator.....I also have a go to hell trans cooler, using an engine oil cooler about a foot square and near 2" thick between the stock condenser and radiator.....BTW that stock condenser cools just fine, in spite of what other folks say about R134 in there, course I have adjusted the POA valve, and run a serp drive with '88-91 vette compressor,

I let the computer run the fans, which turn off at ~40 mph or so.....

some of the sloppy looking pipe wrap to control airflow came loose so I had to redo it just a while ago....woopie doo......

runs good in FLORIDA heat, run well anywhere.......

carriljc

.....and NOT using the variable speed controller.

I still have the Variable Speed controller and I was going to put it back to work, but it all seems to work well with the EZ-EFI 2.0 controller that I haven't bothered.

I do need to move the A/C controls to the pressure switch (instead of the compressor on/off interlock) because right now it runs continuously whenever I have the A/C on... don't really need that at speed. (I read that somewhere? Hope I'm understanding correctly).

The13Bats

Jim,

I like what you are posting my thread is
afterall about ford electric fans, so it belongs here

For me When a company desires to prove their product is superior and pays for the testing the results and lack of some specs and data isnt surprising to me at all.

I have seen in the past the net finds you have added and there is a lot of great info there problem is there is also some misinformation out there when dealing with this subject,

For example, i have read out in cyberland things like there is no 2 speed Taurus fan when i have one sitting here,
I have seen there is no mark 2 speed when the 95 model has 3 leads and two speeds,

I have seen one site say X make model is the best then 3 other sites each honor a different make and model as the best

I personally believe the reason for so much confusion is how ford and Lincoln switched out and swapped around fan motors, blades, and housings,

so the reader is forced to think about this more and do more homework than relying on one or two sources,

Yeah, i did dig out my Taurus 2 speed to take another look at it, its rather thick at the bottom, likely touched the sway bar,

I am also looking at the possibility of cutting the fan from the housing and making an aluminum shroud, some guys use baking sheets and i find that rather ingenious but i fear it sits too close to core and isnt as thick as i desire

I also have to consider will it need a trap door, which are required in many factory shrouds,

Since reasons i want electric fans range from cleaning up the clutter in the engine bay to running a spreader bar, i cant use the stock shroud like you want to run and dad did on his avanti,

oldgto

I`ve been watching intently, but I`m surprised to see only one reply so far with a spreader bar. I am planning to just go with the stock radiator & fan for now....BUT, I have played with the idea of electric fans. ESPECIALLY in this Florida heat & traffic!
But I`ve heard nothing but rave reviews about the spreader bars, and wouldn`t want to give that up.
I`m also happy to see the electric fans can go in without hacking up the original shroud.... allbeit with some bracket magic being performed.

'75

Auto, 2004R.
Northern Illinois, we usually see a few 90Deg plus days each summer and once in awhile 100 deg.
Haven't seen it go to hi speed except when running the AC. I'm planning to go to a trinary switch to control the fan with AC pressure, then it will stay on low at hi-way speeds with the AC on.
I also have a spreader bar.

The13Bats

Gto,
How you been, still havent made it out of eustis for that front horseshoe if you havent already gotten rid of it,

Lots of ideas swirling about electric fans, mounting one in the opening of a stock shroud is one that is gonna be tried, sounds sweet to me,

Otherwise the stock should comes out to fit electrics,

To side step my own fan thread, seems in a group where seldom do people agree the concensus is 100% spreader bars are great,
Most run them with electric fans due to fitting issues, actually will they fit any c3 with mech fan?

For over 30 years i have been told more times than i can count by savvy alignment guys that the 63 to 82 corvettes have a built in a desire for the frame to relax and it shows in the front alignment, people who push their c3s feel it other ways, the spreader bar fixes all that.

mrvette

OH, with my SPAL setup, the spreader bar is as far forward as possible on the install, clears everything fine...plenty of room.....

The13Bats

Thanks, but i made this thread to discuss the ford fans all in one place, the 11 dual spals have plenty of threads devoted to them,

However, i and likely others would have interest in how you made that camaro radiator fit...

jimvette999

The Punisher

Here's the fan I have. It's a 3 wire

The13Bats

Jim vette
Please post me a pic of your full engine compartment,

I have seen it too no mark fan is really two speed like the Taurus,

But it has yet been 100% proven to me,
I am hopeful,

For me i do not like all off or all on,
I like 2 speed single fans or running dual fans both low then both high with a relay setup for series-parallel,
Or one on low both on high,

My 66 had a fiero fan,
Cooled great turned off at speeds but was all or none,

The Punisher

I have a question. I know I have seen some cars the fan will continue to run after the car has shut off. How necessary is that?

The13Bats

Many factory cars are wired like that i do believe
Necessary?
I believe it depends on the car, and who you ask, afterall mech fans stop with the engine,
I know younger tuner cats who have turbos and such like to have the fans keep running to cool things off in there,

Ive been told same thing from several people at cruises, they just like it to cool a little more,

In my mind since the engines off coolant isnt moving so depending on where the sensor is the fans might stay on a really long time, too long?

On my 66 i wired it to run even when engine off, i just thought it was neat o, lol, my sensor on that car was plumbed in one tank on the radiator and the fan only ran a few minutes in most cases.

oldgto

jimvette999

I've "read" from numerous sources that three wires does not equate to 2 speeds in the case of the Mark VIII fans. The center wire is either un-used or tied together inside the motor cover. In this case, it's probably a 2 speed fan. Is that a Ford fan?

jimvette999

Maybe it's to stop a temperature spike???? I think I would like a 30 second cool down cycle and the PWM controller I think I'm buying (not made by the big 3) has a adjustable cool down cycle.

I've read that it's a good idea to keep the radiator from ocillating to extremes in temps /\/\/\/\/ and keep it more even to stop flexing the metal

jimvette999

Won't win any awards but here ya go. Let me know if you're interested in something in particular.



Here's a good shot of the spreader bar bolt in.

ajrothm

On the Lincoln MKVIII fan I have on my 71', its a 3 wire plug, supposedly by the numbers it was 2 speed fan. I tested both power leads to the motor and it ran exactly the same speed. This lead me to believe the speed was either controlled by PWM in the PCM or multiple relays (hi/lo speed relays)...I'm not sure exactly...

My spare lincoln MKVIII fan also has 3 wires, I havent tested them individually to see if the fan speed changes... The reality is, odds are, the fan is going to need to run on high in a C3 anyway. Absolutely no reason to over complicate this install worrying about wiring up for multiple speeds etc..




Regardless of which fans flow what cfm and have how many speeds, a lincoln fan with proper wiring and relays should cool any C3 fine.

Mine is a 650hp, IRON head big block, with AC, down in Houston where its 95* /80% humidity on average and the fan easily cycles on/off. I can use the manual overide switch and it will bring temps down into the mid 170*s or less on a 95* day if I want.

They are great fans. I'm sure the taurus/sable fans are as well but...my experience is only with the MKVIII fans.


Here is my lincoln MKVIII fan install from years ago:

https://www.corvetteforum.com/forums...n-install.html

jimvette999

Alan, rather than reply to your old thread, I wanted to mention, based on a comment you had, that you can get the non-sticky wiring tape like GM used if you ever decide you want it.
A search for "Wire Harness Tape" should get you there.
Jim

The Punisher

Yes from a Taurus