What was your engine temp when you shut it off? This was after you removed that "plastic stuff" you mention in the other thread? If the engine needs cooling after shutoff, I'd take it as a good thing that it continues to run the fan for a while, so long as we're not talking all night, .
What was your engine temp when you shut it off? This was after you removed that "plastic stuff" you mention in the other thread? If the engine needs cooling after shutoff, I'd take it as a good thing that it continues to run the fan for a while, so long as we're not talking all night, .
Im not sure about the engine temp bro.
And you are right, this is after when I removed that plastic stuff/chin underneath! hahaha! Damn, I guess, I have to put it back!
I would, lol. Just guessin, but you lost a boatload of airflow from down low and are most likely heat saturating your bay big time.
hehehe...i thought it will bring more air since those black plastic stuff are just covering the engine bay.
That flap for the radiator I do know scoops air into the radiator.......but i thought removing it will not be such a big deal.....and will be more open to air. Oh well...i'll have to put them back on then
hehehe...i thought it will bring more air since those black plastic stuff are just covering the engine bay.
That flap for the radiator I do know scoops air into the radiator.......but i thought removing it will not be such a big deal.....and will be more open to air. Oh well...i'll have to put them back on then
Golly Gosh Gee .... guess those GM engineers musta put it there for a reason huh?
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Golly Gosh Gee .... guess those GM engineers musta put it there for a reason huh?
Engineering can often create situations that seem counter intuitive. And it can be very different depending on the engineering choices made early in the design process.
Our SKY was DESIGNED as a bottom feeder. Bottom feeders get their air from, just like it's said, the bottom. From underneath or low front. Once you go down that design path, it can drive a lot of other design decision when it comes to air flow. This is why creating real hood vents or real side vents, although it seems will give better air flow, might actually be counter productive. The bottom up flow could be designed a certain way that an open hood or side vents could disrupt. The same could be said for parts underneath the car designed to direct air flow.
Contrast with the Suburu WRX. It has a real hood vent. And if you think about it, perhaps a smart design choice for a rally car.
Now, back to that fan. If the engine temp is above a certain value, the fan will turn on, regardless of whether the engine is running or not. Many cars do this, which is why you often see that big warning sticker on the fan housing stating: "Warning: Fan can start at any time". Mine does it occassionally when off, just after a long run, but never for very long.
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Oddly enough, for only the second time in the nearly 10,000 miles I have on my SKY, the same thing happened to me tonight.
The car was running hotter than normal, I always keep my eye on the temp gauge and always let the turbo cool about 3-5 minutes before garaging it. Normally after a ride car is between 208-212 degrees. Tonight I pulled into the driveway and the car was 214-216 degrees, It was only 65 degrees out tonight so the weather was not a factor. I let it run about 5 minutes WITH THE HOOD OPEN. I pulled it in the garage and shut it down. The fan ran for a solid 10 minutes after (with the hood open) and FINALLY shut off. It happened once when I first got the car in the winter of 07.
The only parallel I can think of is, the wife was cold, so I was running the heat both times....maybe that is it!
The same thing has happened to me twice within the 4k miles I have on my car. I don't normally check the temp so I don't know what it was. I pulled it into the garage and it ran for about 5 minutes each time but eventually turned itself off.
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Freaked me out the first time, but i was told that is normal...
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I've taken a rear-ending or two in my day, but I've never been slammed like that! :eek:
Engineering can often create situations that seem counter intuitive. And it can be very different depending on the engineering choices made early in the design process.
Our SKY was DESIGNED as a bottom feeder. Bottom feeders get their air from, just like it's said, the bottom. From underneath or low front. Once you go down that design path, it can drive a lot of other design decision when it comes to air flow. This is why creating real hood vents or real side vents, although it seems will give better air flow, might actually be counter productive. The bottom up flow could be designed a certain way that an open hood or side vents could disrupt. The same could be said for parts underneath the car designed to direct air flow.
Contrast with the Suburu WRX. It has a real hood vent. And if you think about it, perhaps a smart design choice for a rally car.
Now, back to that fan. If the engine temp is above a certain value, the fan will turn on, regardless of whether the engine is running or not. Many cars do this, which is why you often see that big warning sticker on the fan housing stating: "Warning: Fan can start at any time". Mine does it occassionally when off, just after a long run, but never for very long.
Sorry for my sarcastic post bogie ... and yes I do understand engineering to a small degree. That little jab was in reference to a post I made on Sky888's 'other' thread where he stated he had removed the rubber chin that helps direct air into the engine bay.
Thank you though for further explaining why the addition of hood and side vents may or may not cool the engine bay further. AND why the fan may start at any time.
BTW ... while I had my Sol on a dyno we found that it cooled FASTER if the hood was CLOSED with the fans blowing rather than with it open.
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Removing the rubber behind the chin would likely create a pressure zone behind the radiator causing less air to go through the radiator naturally. So now the car needs to run the fan more frequently to cool the engine.
As bogie stated the fan will run as much and as fast as it needs to to keep from dammaging the engine and it will always run if the airconditioning is running to keep airflow going across the condensor.
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If the engine needs cooling after shutoff, I'd take it as a good thing that it continues to run the fan for a while, so long as we're not talking all night, 
.
... and yes I do understand engineering to a small degree. That little jab was in reference to a post I made on Sky888's 'other' thread where he stated he had removed the rubber chin that helps direct air into the engine bay.
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