cooling fans turn on temp
09-08-2006, 04:51 AM
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cooling fans turn on temp hi, as im modding the ls loom to work with my kit car cobra i have connected the low speed fan to the fan on the car via a relay. but it dosnt seem to work., does anyone know what temp the fans come on???
regards
regards
09-08-2006, 09:43 AM
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The fan logic on the F-bodies is kind of funky, the PCM
settings are one thing but the hardware then makes a
series (low) or parallel (high) connection. If you are using
a single fan, I think you'd be better off with a radiator-
tank-attached thermostat switch to energize a relay and
keep the tank at (say) 150-160F. Don't know about over
in sunny England but you can get encapsulated thermal
switches for $8.xx from Digi-Key, another couple of bucks
for a standard automotive relay and there you go.
settings are one thing but the hardware then makes a
series (low) or parallel (high) connection. If you are using
a single fan, I think you'd be better off with a radiator-
tank-attached thermostat switch to energize a relay and
keep the tank at (say) 150-160F. Don't know about over
in sunny England but you can get encapsulated thermal
switches for $8.xx from Digi-Key, another couple of bucks
for a standard automotive relay and there you go.
09-08-2006, 12:13 PM
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Originally Posted by jimmyblue
The fan logic on the F-bodies is kind of funky, the PCM
settings are one thing but the hardware then makes a
series (low) or parallel (high) connection. If you are using
a single fan, I think you'd be better off with a radiator-
tank-attached thermostat switch to energize a relay and
keep the tank at (say) 150-160F. Don't know about over
in sunny England but you can get encapsulated thermal
switches for $8.xx from Digi-Key, another couple of bucks
for a standard automotive relay and there you go.
settings are one thing but the hardware then makes a
series (low) or parallel (high) connection. If you are using
a single fan, I think you'd be better off with a radiator-
tank-attached thermostat switch to energize a relay and
keep the tank at (say) 150-160F. Don't know about over
in sunny England but you can get encapsulated thermal
switches for $8.xx from Digi-Key, another couple of bucks
for a standard automotive relay and there you go.
anyidea how it should be wired up? diagram would be nice
09-08-2006, 03:37 PM
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Ricky,
The funky low speed/high speed is a bit over the top for us! If you just use the "low" speed output from the PCM you'll be fine for driving 1 (or more) fans via a relay - ie it will be on or off.
If you want the 2 fans, low speed, high speed funky fandango you'd better get sharp with your relay theory
Jim
The funky low speed/high speed is a bit over the top for us! If you just use the "low" speed output from the PCM you'll be fine for driving 1 (or more) fans via a relay - ie it will be on or off.
If you want the 2 fans, low speed, high speed funky fandango you'd better get sharp with your relay theory
Jim
