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Electric fan install help!!

  • Thread starter Thread starter sd0676
  • Start date Start date Mar 18, 2008
S

sd0676

New Member
Dec 19, 2007
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Northern Virginia
Mar 18, 2008
#1
  • Mar 18, 2008
  • #1
Hello, First let me say thanks for any help. I am installing an electric fan from a 94 into my 91. I've done the alt. upgrade. What size fuse do I need going to the 100 amp relay that runs the fan from the battery??
 
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shewitt

New Member
Aug 18, 2003
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Newnan GA
Mar 18, 2008
#2
  • Mar 18, 2008
  • #2
Dont know what a 94 fan pulls at startup thats what you have to figure out. Once you get that just go a little bigger on the fuse.
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
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Mar 18, 2008
#3
  • Mar 18, 2008
  • #3
The fuse for the stock 94-95 GT cooling fan (it's two speeds, the V6 fan is one speed) is 60 amps IIRC. NOTE: When these fan motors melt down, the fuse seldom seems to blow. Some fans were even retrofitted with a circuit breaker on the high speed terminal for the event of an internal short.

Choose your circuit protection carefully.

Good luck.
 
H

HaynStang

New Member
Dec 16, 2006
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Portland
Mar 19, 2008
#4
  • Mar 19, 2008
  • #4
Good question. I see everyone saying use a fuse/circuit breaker but they rarely mention a specific size to use.

How about the 3.8L Taurus fans, what size is reccomended with those?

Is a circuit breaker any faster or more consistent to react than a fuse? How do you reset the small 12V circuit breakers, by removing current to it (by turning the ignition or fan switch off)?

I'm installing my Taurus fan with a soft-start controller that doesn't require a relay but I'm still a little confused what kind of circuit protection to use. I don't believe the instructions specify what amp rating is needed. I believe the controller is rated for 30-35 amps, so I figured I'd go with a 30 amp fuse (or circuit breaker)? Any comments?
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
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129
Mar 19, 2008
#5
  • Mar 19, 2008
  • #5
HaynStang said:
Good question. I see everyone saying use a fuse/circuit breaker but they rarely mention a specific size to use.

How about the 3.8L Taurus fans, what size is reccomended with those?

Is a circuit breaker any faster or more consistent to react than a fuse? How do you reset the small 12V circuit breakers, by removing current to it (by turning the ignition or fan switch off)?

I'm installing my Taurus fan with a soft-start controller that doesn't require a relay but I'm still a little confused what kind of circuit protection to use. I don't believe the instructions specify what amp rating is needed. I believe the controller is rated for 30-35 amps, so I figured I'd go with a 30 amp fuse (or circuit breaker)? Any comments?
Click to expand...

Fusible links are more common because they're cheaper. Some newer cars do use ANL style fuses however.

The DC Controller comes with its own fusible link.
 

allballsmustang

Member
Mar 31, 2005
174
0
16
Lehigh Valley, PA
Mar 19, 2008
#6
  • Mar 19, 2008
  • #6
your going to need about a 40 amp fuse for the taurus fan...it runs a little over 30 at high speed so a 40 should be fine...
 

Grn92LX

Fidanza Man!
Founding Member
Jan 14, 2001
6,819
64
129
New York
Mar 19, 2008
#7
  • Mar 19, 2008
  • #7
Bosch 75a relay, $2 fuseable link, $2 switch and 10G wire is what I use with my sn95 fan. Been flawless for over 5 years now
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
33
129
Mar 19, 2008
#8
  • Mar 19, 2008
  • #8
allballsmustang said:
your going to need about a 40 amp fuse for the taurus fan...it runs a little over 30 at high speed so a 40 should be fine...
Click to expand...

The start-up draw will probably blow the fuse.
 

Fett

New Member
Nov 2, 2004
766
6
0
Mar 19, 2008
#9
  • Mar 19, 2008
  • #9
Yea, I went with a 75 amp fuse just because of the initial start up.
 
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