Is there no cool down fan setting?
#1
Senior Member
Thread Starter
iTrader: (4)
Join Date: Feb 2011
Location: Crest Hill, IL
Posts: 743
Total Cats: 42
Is there no cool down fan setting?
I tried searching this and didn't come up with anything. Do Miatas not have an after run setting that would dissipate some of the heat from the engine bay? A low setting on the fan to run for a while. Just curious. Not worth the trouble?
#3
Senior Member
Thread Starter
iTrader: (4)
Join Date: Feb 2011
Location: Crest Hill, IL
Posts: 743
Total Cats: 42
So how about coming up with a timer. You push a button and it activates the fan relay for an adjustable number of minutes then shuts off. I don't have the electronic skills to fabricate this, but wouldn't this be on the right track?
#4
Elite Member
iTrader: (2)
Join Date: May 2008
Location: Portland, Oregon
Posts: 3,468
Total Cats: 365
Umm ... why? Serious question. I see no turbo in your sig. Even with a turbo on the vehicle one would want to idle it until temps were stabilized before shutdown. What is it you are trying to avoid?
I have put a switch onto my fans, I can manually activate both of them at any time. But I can't see why I'd need to run them for a bit after the engine is off.
I have put a switch onto my fans, I can manually activate both of them at any time. But I can't see why I'd need to run them for a bit after the engine is off.
#6
Elite Member
iTrader: (10)
Join Date: Jun 2006
Location: Athens, Greece
Posts: 5,990
Total Cats: 361
Unfortunately this is not possible on the 01-05. The relays that power the fans have constant power on the 30 and 87 pins, but the 85 pin (high side of the coil) gets 12V from IG2 from the ignition. So to actually trigger the relay, the key must be in the ignition OR you need to install a turbo timer just for IG2.
#7
Senior Member
Thread Starter
iTrader: (4)
Join Date: Feb 2011
Location: Crest Hill, IL
Posts: 743
Total Cats: 42
"I see no turbo in your sig." -- It says FM II
Rev -- Does that apply to the 00 cars?
Is power to the fan relay normally off through the ign? If power came from a different route would that bleed back into the system screwing up something else?
Summer time temps can get quite high under the hood without any air moving in the engine bay. After a session at the track, even with a 2 min idle cool down that's not doing the motor any good to set there and cook. I hear noises that sound like the water is boiling out of the center section of the turbo.
If something like this was installed it would be easy enough to use an infrared temp gun on the center section with and without the fan on and see if it makes any difference.
Rev -- Does that apply to the 00 cars?
Is power to the fan relay normally off through the ign? If power came from a different route would that bleed back into the system screwing up something else?
Summer time temps can get quite high under the hood without any air moving in the engine bay. After a session at the track, even with a 2 min idle cool down that's not doing the motor any good to set there and cook. I hear noises that sound like the water is boiling out of the center section of the turbo.
If something like this was installed it would be easy enough to use an infrared temp gun on the center section with and without the fan on and see if it makes any difference.
#9
Senior Member
Thread Starter
iTrader: (4)
Join Date: Feb 2011
Location: Crest Hill, IL
Posts: 743
Total Cats: 42
By off I think you mean drive car, let it set for about 5 min, check Tuner Studio to see what the temp sensor reads for heat soak. Then start-idle the car and see what it says.
I'll get those readings later today.
I'll get those readings later today.
#12
Senior Member
Thread Starter
iTrader: (4)
Join Date: Feb 2011
Location: Crest Hill, IL
Posts: 743
Total Cats: 42
OK, so it's about 100 degrees today. Ran some errands came back home, here;s what we have.
Driving around we have coolant(CT) 202-210F depending on traffic Intake air (IA)is 103-107F before setting.
Setting/heat soak:
5 min: (CT) 220F (IA) 115F
10 min: (CT) 217F (IA) 112F
20 min: (CT) 211F (IA) 109F
30 min: (CT) 204F (IA) 109F
Started back up:
(CT) 195F (IA) 113F
Does this sound about right?
Driving around we have coolant(CT) 202-210F depending on traffic Intake air (IA)is 103-107F before setting.
Setting/heat soak:
5 min: (CT) 220F (IA) 115F
10 min: (CT) 217F (IA) 112F
20 min: (CT) 211F (IA) 109F
30 min: (CT) 204F (IA) 109F
Started back up:
(CT) 195F (IA) 113F
Does this sound about right?
Thread
Thread Starter
Forum
Replies
Last Post
stoves
Suspension, Brakes, Drivetrain
5
04-21-2016 03:00 PM