94 GT/Lowering Cooling Fan Start Temperature

F

F100Panel

New Member
#1
#1
I'm just a 70's motorhead getting back into cars now that time & $ allows.. I'm LOST by all this electronic stuff controlling engines...I have this 94 Mustang 5.0 tweaked up to 400+ HP. It appears to have the factory engine control computer. My concern is I believe 200 degrees F is too high an engine temperature for cooling fan start on this engine. Talked to American Muscle about getting a chip to start the fan around 180.. They thought that a good idea but suggested I go about it another way than chip control. They suggested www.dccontrol.com . I went to their website & they have 2 options- :nono: a sensor that inserts into the radiator fins & turns the cooling fan on & off at a given set temperature through it's own relay system ( $125 ) or easier a Temperature Module that you put in line with the stock temperature relay that will lower fan start speed by 15 degrees engine temp/185? engine temp and lower the fuel enrichment temperature by 10 degrees...($35) Any one have any input on which way I should go & is my thinking about the temperatures valid?:smash: I'm leaning to the Temperature control module NOT DO TO COST but ease of install & I'd rather have the fan controlled by ENGINE temperature rather than radiator temperature... :confused:
 
stangman1995gt

stangman1995gt

Well-Known Member
#2
#2
Is there any way you can install something to manually turn the fan on and off when You want too? I have seen that on alot of stangs. Just dont forget to turn it on or you fry the engine. I have seen that alot also. lol
 
F

F100Panel

New Member
#3
#3
The fan currently only start/stops by manual toggle. So far the issue has been in forgetting to turn it off but I do fear forgetting :smash:to turn it on....

If I take out the manual toggle and reconnect the wires that were cut to install the toggle, all operation will return to computer controlled normal with fan start at 200 degrees F but I really don't want to run that high a temperature...
 
BadA55f0Xxx

BadA55f0Xxx

Well-Known Member
#4
#4
Yea u can put a switch to control your electric fans whenever you want to put them on which is cool cuz u can run them while the engine is off to cool it down at the track or anything else life throws at u
 
MaximumRisk

MaximumRisk

NYC Regional Coordinator
#5
#5
just replace your manual switch with a this thermostatic switch http://www.summitracing.com/parts/PRF-30111/ . Just screw it into one of the spare threaded holes (3/8) into a coolant passage on your lower intake. (assuming that you have an aftermarket intake)
I don't know how your fan is wired, but I like to use this sensor to send ground to the relay/ solenoid instead of power, though you can do it either way.
 
1

1BIGMOFO

Member Plus
#6
#6
What T-stat is in the car? I put a 180 in the car and its great! It bets up to 195 - 200 and then cools right back odd to 185 when the fans kick on. I got a good radiator though..
 
dsblk93gt

dsblk93gt

5.0 Moderator
#8
#8
So you have 400hp and are not running a chip at all? I personally would get a chip, you can get rid of the tip in retard as well. The 94/95 computers pull timing between shifts, and the only way around it is through a chip.
 
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