Adjusting radiator fan temps
First, do you think that kicking the radiator fans on at lower coolant temps would be a good idea?
Second can anyone interpret these tables? http://i.imgur.com/Xn3FxOD.png I was reading a post on NAOSIC that kinda explained it but I still don't know what the fan modes are exactly (http://forums.nasioc.com/forums/show....php?t=1828462) |
This would need to be coupled with a lower temperature thermostat, or else the fans would likely be running constantly and not really doing much.
On topic of lower temp thermostats, I'm not a fan (pun intended) |
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http://i1299.photobucket.com/albums/...psteqfngsp.png |
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i would like to know the wire that activates so i could have and external switch for track days. turn it on with the hood up. sounds dumb but it will move that hot air around which is smart.
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I lower these values on my own car as my intercooler heatsoaks at idle from the extreme pavement temperatures in phoenix even if my coolant temp is acceptable. Leaving the fan running non stop will keep my IAT lower and keep air flowing through my bay.
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Car sits and builds heat fast with the sealed bay. Stock Fan Activation 212F So normal cruising temps in my testing. (8 months) Coolant: 190F-197F Oil: 190-205F IAT: 70-115F (Depending on conditions) Once you come to a idle stop with normal fan activation points: Coolant: 200-213F Oil: 195-215F IAT: 100-130F Lowering the coolant fan activation point to 200F drops these idle numbers down about 10-15F during idle and keeps the fans on solid during track operation keeping coolant temps lower. If you have an liquid to air oil cooler up front there are big reductions in oil temps from this as much as 10-20F depending on the core during a 20-30 minute track session. Idle Temps with 200F Fan Activation: Coolant: 194-202F Oil: 190-200F IAT: 90-120F IMPORTANT Setting the temp any lower than 200F will likely cause it to run all the time which clearly is stress on the fan motors. You will only see 200F coolant temps during harder runs and idling. But normal cruising with airflow temps usually stabilize between 190-197F. |
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So how we set the fans to 200F?
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