At what temps do you turn on your rad. fans?
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At what temps do you turn on your rad. fans?
This goes for anyone with stand alones...at what coolant temps do you turn on and turn off your radiator fan(s)? I think mine turn on around 208 and off around 200, but I'm not sure if this is right. I have no idea what OEM ecu does either.
#4
OE 1.6 comes on at 97c/207f, OE 1.8 NA 95c/203f.
I had my fan coming on at 93c (180f tstat) following the theory that it's easier to keep the coolant from getting hot vs. trying to cool down the hot coolant. But I bumped the on temp back up to the stock 97c because it was coming on all the time (and it's a loud spal straight blade). At 97c on it rarely comes on. There is definitely a plateau in the coolant temp rise after 93c with my car.
I had my fan coming on at 93c (180f tstat) following the theory that it's easier to keep the coolant from getting hot vs. trying to cool down the hot coolant. But I bumped the on temp back up to the stock 97c because it was coming on all the time (and it's a loud spal straight blade). At 97c on it rarely comes on. There is definitely a plateau in the coolant temp rise after 93c with my car.
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Main fan comes on at 175F. So it stays on the whole time. A/C fan runs off the thermoswitch which switches at 206/207.
One of my future projects is to grab the VSS signal from the cluster to interrupt the fan circuit over a certain speed. That's way down on the list though. I was also going to try to remove the a/c side fan, just to see what happens.
One of my future projects is to grab the VSS signal from the cluster to interrupt the fan circuit over a certain speed. That's way down on the list though. I was also going to try to remove the a/c side fan, just to see what happens.
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