Running Fans all the time (good or bad?)
#1
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Running Fans all the time (good or bad?)
Guys I had my fans rigged to go on all the time, my car runs very cool all the time. But what are the negative affects, I was gonna have the PFC control the fans. Anybody else runs their fans all the time?
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Yes, it is bad. You can run the car TOO cool, especially in colder weather. The engine will run it's best in the 180-200 F range. If you are at 170 F or below, the engine control system will run in warm-up mode -- double throttle plates not opening, enrichened fuel mixture, etc. That and you are just putting needless wear on the fans.
If you have a PFC and the data-logit, you can set exactly when your fans come on. I think many people have their low fans come on at around 190F (88 C) instead of the factory setting of 220F (!).
If you have a PFC and the data-logit, you can set exactly when your fans come on. I think many people have their low fans come on at around 190F (88 C) instead of the factory setting of 220F (!).
#6
Man, my car runs very cold. *linearized temp gauge and rarely do I see 170' F on heavy city driving. Is my stock replacement radiator and water wetter working that good?
*plus any downside to running the fan while cruising 65+mph on the highway? Reason I ask is, I wonder if it impedes with airflow going through the radiator since air is being throw at it from both sides.
*plus any downside to running the fan while cruising 65+mph on the highway? Reason I ask is, I wonder if it impedes with airflow going through the radiator since air is being throw at it from both sides.
#7
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Originally posted by HeatTreated
I wonder if it impedes with airflow going through the radiator since air is being throw at it from both sides.
I wonder if it impedes with airflow going through the radiator since air is being throw at it from both sides.
With the linearized temp gauge how do you have an actual temp reading? If you are in fact running no more than 170 degrees you can just remove your radiator completely as the thermostat isn't even open yet
If your temps are in fact that low, they are too low. The engine would be happier with more temp in it.
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#8
gotcha.
As for the temps.. The ohms were set that the middle of the gauge would read 180'F Ive gove above it only a few times and always hang way below. Ive gone so far as to attach a 'cooking' thermometer to the radiator hose to compare and it read the same as what the guage would show. You think my thermostat is bad (stuck open)?
As for the temps.. The ohms were set that the middle of the gauge would read 180'F Ive gove above it only a few times and always hang way below. Ive gone so far as to attach a 'cooking' thermometer to the radiator hose to compare and it read the same as what the guage would show. You think my thermostat is bad (stuck open)?
#9
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Originally posted by HeatTreated
Man, my car runs very cold. *linearized temp gauge and rarely do I see 170' F on heavy city driving. Is my stock replacement radiator and water wetter working that good?[/u] [/B]
Man, my car runs very cold. *linearized temp gauge and rarely do I see 170' F on heavy city driving. Is my stock replacement radiator and water wetter working that good?[/u] [/B]
If your fans are not coming on, your temp readings are wrong.
Adam
#10
thens thats it.. the markings for the gauge are set wrong... hmm perhaps I can sit there until the fans come on and note the mark.. Since I know when the fans are set to come on.
Last edited by HeatTreated; 03-21-03 at 02:40 PM.
#11
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Originally posted by HeatTreated
thens thats it.. the markings for the gauge are set wrong... hmm perhaps I can sit there until the fans come on and note the mark.. Since I know when the fans are set to come on.
thens thats it.. the markings for the gauge are set wrong... hmm perhaps I can sit there until the fans come on and note the mark.. Since I know when the fans are set to come on.
I have a 94 white PEG. My fans were not coming on when they were supposed to. The car was getting really hot. I didn't even know it until I installed my VDO temp gauge. Now I have things under control.
#12
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Originally posted by HeatTreated
thens thats it.. the markings for the gauge are set wrong... hmm perhaps I can sit there until the fans come on and note the mark.. Since I know when the fans are set to come on.
thens thats it.. the markings for the gauge are set wrong... hmm perhaps I can sit there until the fans come on and note the mark.. Since I know when the fans are set to come on.
I have a 94 white PEG. My fans were not coming on when they were supposed to. The car was getting really hot. I didn't even know it until I installed my VDO temp gauge. Now I have things under control (I think).
sorry for the double post
#13
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I think it depends on your mods and where you live, and also how you drive. If you hardly ever get on the gas and only have very basic mod, yeah, its bad to turn the fans on all the time, but if you are heavily modded, and run the **** out of your car, you should consider having the fans on all the time.
#14
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Originally posted by T88NosRx7
I think it depends on your mods and where you live, and also how you drive. If you hardly ever get on the gas and only have very basic mod, yeah, its bad to turn the fans on all the time, but if you are heavily modded, and run the **** out of your car, you should consider having the fans on all the time.
I think it depends on your mods and where you live, and also how you drive. If you hardly ever get on the gas and only have very basic mod, yeah, its bad to turn the fans on all the time, but if you are heavily modded, and run the **** out of your car, you should consider having the fans on all the time.
The only reason to run the fans is to cool the car. Even if you are heavily modded, you don't need (or want) the fans on during warm up, or when driving normally at freeway speeds.
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I've got my Fan Mod on a switch.
I let the car warm up without the fans, then when I hit (what I consider to be) operating temp - about 180 - I turn the fans on, which maintains that temp very nicely.
And of course I always let them run for the 10 minutes after I shut off.
Only downside is if the car is going to be parked for a while, I have to go back and turn the switch off later, so as not to drain the battery.
I let the car warm up without the fans, then when I hit (what I consider to be) operating temp - about 180 - I turn the fans on, which maintains that temp very nicely.
And of course I always let them run for the 10 minutes after I shut off.
Only downside is if the car is going to be parked for a while, I have to go back and turn the switch off later, so as not to drain the battery.
#21
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I've got my Fan Mod on a switch.
I let the car warm up without the fans, then when I hit (what I consider to be) operating temp - about 180 - I turn the fans on, which maintains that temp very nicely.
And of course I always let them run for the 10 minutes after I shut off.
Only downside is if the car is going to be parked for a while, I have to go back and turn the switch off later, so as not to drain the battery.
I let the car warm up without the fans, then when I hit (what I consider to be) operating temp - about 180 - I turn the fans on, which maintains that temp very nicely.
And of course I always let them run for the 10 minutes after I shut off.
Only downside is if the car is going to be parked for a while, I have to go back and turn the switch off later, so as not to drain the battery.
#23
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hmm any info on the Fan mod..
i want to do this to my car.. ..
but a friend of mine who keeps saying
he will help me . cuz he knows how to do it )
.always lies to me so.. any links to this would be appricated.
i want to do this to my car.. ..
but a friend of mine who keeps saying
he will help me . cuz he knows how to do it )
.always lies to me so.. any links to this would be appricated.
#24
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