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what temp should i set


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#1 basicgreen

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Posted 07 December 2018 - 07:22 AM

davies craig fan controller is set at 85c (factory) .. and on my temp gauge the fans come on at 200f.. what temp do you guys set you controllers at on a 202.. dc0444



#2 jd lj

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Posted 07 December 2018 - 06:27 PM

I've just been playing with this recently and think that it depends on what temperature thermostat you're using. I've set mine to switch the fans on just after the thermostat opens. There's no point having the fans running if the thermostat is still closed. And you probably don't want the fans to be constantly running, but just switching on and off as the thermostat opens and closes.

I've just fitted them same controller by the sounds of it and have the sender unit fitted between the radiator fins just below the top radiator hose, the controller is set to 65 degrees C. If you have it actually in the coolant then I think that you'll need a higher temperature to set it.

What fan/fans are you using? Are you using the original engine fan as well?

#3 basicgreen

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Posted 07 December 2018 - 06:38 PM

2 tens down stream engine side.. and yes in the fins thanks for your in put



#4 76lxhatch

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Posted 07 December 2018 - 08:23 PM

depends on what temperature thermostat you're using

 

Exactly. I'd go at least 5 degrees over thermostat fully open temp, and bear in mind this should include any hysteresis - if it turns off 5 degrees colder than it turns on, you don't want this to be too near the thermostat temp.



#5 jd lj

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Posted 07 December 2018 - 09:14 PM

2 tens down stream engine side.. and yes in the fins thanks for your in put


Are they two 10" Davies Craig or Spal? Do you find these to be sufficient?

I fitted a Davies Craig high performance 14" (1500 cfm) in front/upstream of the radiator and removed the engine fan but occasionally I feel that it needs a bit more. I'll refit the engine fan and test it some more.

#6 rexy

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Posted 07 December 2018 - 11:02 PM

davies craig fan controller is set at 85c (factory) .. and on my temp gauge the fans come on at 200f.. what temp do you guys set you controllers at on a 202.. dc0444


With that discrepancy it’s probaby worth checking actual temps are with a temp gun.

#7 jd lj

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Posted 08 December 2018 - 04:16 AM

With that discrepancy it’s probaby worth checking actual temps are with a temp gun.


The instructions state that the sender unit will normally read about 15C lower if it's mounted in between the fins of the radiator than if it's actually in the coolant.

#8 basicgreen

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Posted 08 December 2018 - 12:29 PM

thanks for in put.. have a 180 thermostat.. will try 80c and see guess trial that.. should i try get to come on at about 190f  



#9 basicgreen

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Posted 08 December 2018 - 12:52 PM

James have not really driven on real hot day yet sorry.. but so far so good 






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