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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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Fan relay question

  • Thread starter Thread starter S&B
  • Start date Start date Apr 23, 2009

S&B

I hate my CT. :(
10 Year Member
Dec 18, 2005
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695
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Cheesehead
Apr 23, 2009
#1
  • Apr 23, 2009
  • #1
Im wiring up my fan with a 70amp relay on the high side of a 95 5.0 fan. My question is should i also wire up a 40am one to the low side of the fan, so when i go on the highway (rarely) I can switch to the low side? My car will not cool at hwy speeds it will creep up in the 210-220's

I just worry that having the fan running on high all the time wll eat up all my power.

My electrical system est amperage draw, maybe someone could help me out with this as well
Magnafuel pump 20amp
95 5.0 fan 40amp?
System 30amp? (2 amps, 50x2 RMS @ 4 ohm and 500 rms 1000 max@ 1.33 ohm)
Car Lights/ignition 50 amps

total 140 amps of draw, I dunno this is my hobby?

fyi
Last time I checked the FAST I was pretty much in the 12-14 volt range most of the time, and it would go down when the RMP's increased. I did have a shotty belt so I changed that and now Im seeing a more steady 13+ volts.

anyway I have a 220 PA performance alt maybe someone could let me know what they would do.
 

Grn92LX

Fidanza Man!
Founding Member
Jan 14, 2001
6,819
64
129
New York
Apr 23, 2009
#2
  • Apr 23, 2009
  • #2
you dont need the fan on at highway speeds. If its not cooling i'd look into replacing the radiator and flushing the system if its old and dirty.
 

S&B

I hate my CT. :(
10 Year Member
Dec 18, 2005
1,634
695
204
Cheesehead
Apr 23, 2009
#3
  • Apr 23, 2009
  • #3
I think the setup just creates to much heat
DART Block (heavy and HOT)
YSI Blower ( BOV is shooting Hot air out at HWY speeds)
It has a FMS water pump and 2 row alm radiator When the fan kicks on it cools it down very quick

I do not have the side flaps that go next to the radiator to block the air from going around, that may help

pic
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
34
129
Apr 23, 2009
#4
  • Apr 23, 2009
  • #4
Do you have the air dam under the radiator?

I agree about not using the fan while at speed. This is why OEM's shut it off between ~35-50 mph
 

S&B

I hate my CT. :(
10 Year Member
Dec 18, 2005
1,634
695
204
Cheesehead
Apr 23, 2009
#5
  • Apr 23, 2009
  • #5
yeah I do have the lip under there,
 

Grn92LX

Fidanza Man!
Founding Member
Jan 14, 2001
6,819
64
129
New York
Apr 23, 2009
#6
  • Apr 23, 2009
  • #6
Try draining the radiator and adding more water than coolant. All those go fast goodies will produce more heat but when you're moving it should cool down though. If all else fails take the supercharger off
 

S&B

I hate my CT. :(
10 Year Member
Dec 18, 2005
1,634
695
204
Cheesehead
Apr 23, 2009
#7
  • Apr 23, 2009
  • #7
you think that running all coolant is not a good idea?
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
34
129
Apr 23, 2009
#8
  • Apr 23, 2009
  • #8
Water transfers heat ~2.5 times more efficiently than E/G coolant.
 

ID89GT

10 Year Member
May 26, 2008
1,659
18
49
Spokane Valley, WA
Apr 24, 2009
#9
  • Apr 24, 2009
  • #9
Usually you wanna go 50 50 but I think they don't recomment going more than 70 30
 

S&B

I hate my CT. :(
10 Year Member
Dec 18, 2005
1,634
695
204
Cheesehead
Apr 24, 2009
#10
  • Apr 24, 2009
  • #10
okay well, I will try getting rid of some of this coolant, I should have just baught the 50/50 mix instead of thinking i was really cooking the goose by buying the real deal
 
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