Ok, so I got my thermostat installed...but its still running a little hot.

Ive read somewhere that the fans come on (only at like 5%) at a specific heat, then 100% at another.


@ 200+ *F the fans are NOT on.

Can anyone tell me what the stock ecm says they should be on at?

 

not really sure but i know mine has been up to 214 and just kinda stayed there and went back down little after so im guessing somewhere around there

 

I know the fans come on @ 100% at around 220.

I want to know if the fans are supposed to be on (even a little) at lower temps.

I read on here that they were on @ 5% at lower temps.

 

I pull up a tune tonight and post the settings.

 

Sorry I forgot all about this thread

 

Forgive my ignorance, but does that say fans are on 100% at 247*F ? ;And don't come on until 196*F ?

 

yup, tooooning FTW... or just use a fan switch

 

Stock slope is: (for a kappa in EFILIVE)
Fan % vs ECT °C
y = 3.125x - 278.12
Fan % vs ECT °F
y = 1.736x - 333.67

Chart data:
Fan% Deg °C
89.0 0.00
91.0 6.25
93.0 12.50
95.0 18.75
97.0 25.00
99.0 31.25
101.0 37.50
103.0 43.75
105.0 50.00
107.0 56.25
109.0 62.50
111.0 68.75
113.0 75.00
115.0 81.25
117.0 87.50
119.0 93.75
121.0 99.99

All of the other values are the same except run time of 78 vs 780 seconds. I have a beta version of EFILive so I suspect mine is wrong.

Fan control is needed to keep the engine temperature in the most efficient range.
With a Turbo in a FWD application you would need a much more aggressive slope for the fans along with a cooler thermostat. Don't also be surprised if you end up needing a larger radiator too - especially if it's an automatic.