Fan relay question

[S&B]

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]

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 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]

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]

yeah I do have the lip under there,

 

[Grn92LX]

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]

you think that running all coolant is not a good idea?

 

[HISSIN50]

Water transfers heat ~2.5 times more efficiently than E/G coolant.

 

[ID89GT]

Usually you wanna go 50 50 but I think they don't recomment going more than 70 30

 

[S&B]

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